Code p1421 nissan versa

3279 posts · Joined 2009. #2 · Mar 25, 2010. These cars do not really need a tune up. Old school tune up use to be cap, rotor, plugs, wires, fuel filter, air filter, new fluids. Our cars don't use a cap, rotor, don't have a serviceable fuel filter, the plugs are buried and not due for a change until 105k miles I believe, there isn't an spark ...

Code p1421 nissan versa. To fix the automobile fault code P1422, follow these steps: 1. Check the possible causes mentioned above. 2. Visually inspect the wiring harness and connectors related to the fault code. 3. Look for any damaged components. 4. Check for broken, bent, pushed out, or corroded pins in the connectors.

Labor: 1.0. The cost to diagnose the P1421 2006 Nissan Altima Sedan code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What is dtc code p1421 nissan versa 2008 and what to do about it. p1421 is a code stored for cold start control. You will have to take it to a dealer so the can reprogram the ECM there is a service bulletin on it Read full …The Nissan 350Z design was geared to make the car an attainable performance vehicle. Learn more about the Nissan 350 design and check out pictures. Advertisement The Z's role as sy...The P1421 is "COLD START CONTROL". The ECM controls ignition timing and engine idle speed when engine is started with pre-warming up condition. This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions. There are a few preliminary checks you can do here.Code p1421 for nissan versa 2009. Nissan Cars & Trucks; Open Questions: 0 answers. 2010 versa hatch intermittent opening with key fob. dirty switch or mechanism? Read full answer. Be the first to answer Jan 10, 2019 • 2010 Nissan Versa. 0 answers.I have a 2010 Nissan Versa S 1.8. The service engine soon light came up, went to Advanced Auto to have the code checked. Found P1421 code, Cold Start Control, Short to Ground.2009 Nissan versa 120k miles with engine light on --code P1421 came up for ecm. was told to disconnect battery for 30 minutes and would reset --didn't work. then went on internet and ran thru procedure to reset light but still no luck. does this mean the ecm is faulty and needs to be replaced?

Nissan common check engine light code p1421 which is the Cold Start Controller. Fix was to reset or reprogrammed the ECM (Electronic Control Module).How to fix code P0441 and P1421 Lexus RX 400h 100% ,The fault code P1421 can be caused by a lack of intake air volume due to a blocked air filter. It can also be caused by a clogged fuel injector or a bad fuel pump in the fuel injection system. Another possible cause is a faulty Engine Control Module (ECM). Fixing Code P1421: Simple Steps To Resolve The Issue!KBB Service Advisor. Reviewed by. Gary Hardesty. What Is the P1421 Code? Symptoms. Causes. Seriousness. Can I Still Drive? Diagnose. Difficulty of Inspecting. Get Additional …TrueCar has 256 used Nissan Versa models for sale in Oklahoma City, OK, including a Nissan Versa SV Sedan CVT and a Nissan Versa SV CVT. Prices for a used Nissan … Nissan. Code: P1421. Definition: Cold Start Emission Reduction Strategy Monitoriing (Includes Hybrid Models) Description: HYBRID MODELS CAUTION: Hybrid systems use very high-voltage battery systems. Before starting any service work involving the battery system, turn the ignition switch OFF and then remove the service plug from pocket in the trunk. What is the Cost to Diagnose the Code? Labor: 1.0. The cost to diagnose the P2119 Nissan code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.P0301 is a fairly common trouble code with the Nissan Versa. It's an OBD2 code and indicates that your car’s first cylinder is misfiring. P0301 is certainly a cause for concern and should be considered a threat to the drivability of your Versa. Fixing P0301 should be considered a high priority. Unlike a lot of

Nissan/Datsun Versa S 2011 Nissan Versa - Idling problem- 2011 Nissan Versa - Idling problem- When start car idles between 1500-2200 rpm will not come down to normal idle of 500-600 rpm....When you step on gas rpm go up very slow with no power. …Service Bulletin 121710 for Nissan ENGINE AND ENGINE COOLING | AutoMD. Chicago area 05 KC SE 4x2 FFV, smoke, 2.94 gearing. Mods: Hypertech Max Energy, JBA catback, Airaid 4" MXP CAI, Hellwig HD traction springs, 08 rear shackles, Best full street trim (5120#) 1/4 mile track time of 14.632 running Bully Dog 87+2 and S&B CAI. 1/8 mile [email protected] ...To fix the automobile fault code P1422, follow these steps: 1. Check the possible causes mentioned above. 2. Visually inspect the wiring harness and connectors related to the fault code. 3. Look for any damaged components. 4. Check for broken, bent, pushed out, or corroded pins in the connectors.Nissan Versa U1000 Symptoms. U1000 is a broad code. The symptoms related to it can vary wildly, depending on which modules can and can’t communicate. The odds are that you’ve pulled this article up after the service engine soon light came on with U1000 If there are codes related to a specific module or CAN bus, start your diagnosis …To diagnose the P1421 2009 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Code. Fault Location. Probable Cause. P1421. Cold start emission control – malfunction. (Buy Part On Amazon) Intake/exhaust leak/blockage, mechanical fault, idle speed control (ISC) system, ignition …

Reese vfc.

To diagnose the P1421 2007 Nissan Maxima code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.I bought a 2008 Nissan Versa LS last month. It has 235,500 kilometres on it but the engine and transmission run quite well. ... A P1421 is a cold start issue ... O2 sensors have their own diagnostic trouble codes. Whenever you see an O2 sensor code, that's the time to change the sensor. For example, I had a P0138 code a few years ago, and had ... Here are the relevant service bulletins from Infiniti:FX50. 2009-2010. Infiniti TSB ITB08048FX35. 2009-2011. Infiniti TSB ITB11007 I got the P1421 trouble code on my 2010 nissan cube (25k miles). I have my own OBDII reader and I cleared the code twice and it has come up a third time. I took my car to the nissan dealership at 8am and they did nothing to it. I had to physically show up at 3pm to ask what the status was, and a head mechanic looked up the code and found … To fix fault code P1421, start by checking the possible causes: a blocked air filter, a clogged fuel injector or a faulty fuel pump, or a malfunctioning Engine Control Module (ECM). Then, visually inspect the wiring harness and connectors for any damage. Nissan. Code: P1421. Definition: Cold Start Emission Reduction Strategy Monitoriing (Includes Hybrid Models) Description: HYBRID MODELS CAUTION: Hybrid systems use very high-voltage battery systems. Before starting any service work involving the battery system, turn the ignition switch OFF and then remove the service plug from pocket in the …

To diagnose the P1421 2006 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.Nissan Versa U1000 Symptoms. U1000 is a broad code. The symptoms related to it can vary wildly, depending on which modules can and can’t communicate. The odds are that you’ve pulled this article up after the service engine soon light came on with U1000 If there are codes related to a specific module or CAN bus, start your diagnosis there ...A leak in the fuel vapor hose leading from the fuel tank to the intake will throw P0442 in your Versa. Fuel Tank Pressure Sensor (If Equipped) If the fuel tank pressure sensor has gone bad, it can cause many problems, including the P0442 code. Not all vehicle’s have a fuel tank pressure sensor. You’ll need to verify if your Versa has one or ...The P0705 code in a Nissan Versa refers to a transmission range sensor circuit malfunction. This code indicates that there is an issue with the transmission range sensor, which is responsible for informing the engine control module (ECM) about the gear position of the vehicle. The P0705 code is a generic OBD-II code, which means it is ...2009 Nissan versa 120k miles with engine light on --code P1421 came up for ecm. was told to disconnect battery for 30 minutes and would reset --didn't work. then went on internet and ran thru procedur … read moreNissan Motor News: This is the News-site for the company Nissan Motor on Markets Insider Indices Commodities Currencies StocksMy 2013 Nissan Versa Sedan has the engine code P0456 with a 02 sensor heater EGR. I replaced the fuel cap. is it safe to erase the code? Vehicle: 2013 Nissan Versa Sedan versa; nissan; p0456; 2 Answers +1 vote . answered Jan 12, 2018 by anonymous . Best answer. Yes you can erase the code. ...To diagnose the P1421 2009 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.codigo p1421 nissan versa 2007 General Tech El sitio para los fanáticos del automovilismo Centro Americano. Foro altamente activo, tips, modificaciones, videos, encuestas, articulos, etc.2016 Versa. P0420 isn't an 02 sensor code it's a catalyst inefficiency code. I have heard of on rare occasions it being related to a bad downstream 02 sensor but as Ecate said it's usually the catalytic converter needs to be replaced.

February 14, 2023 by Jason. P0455 in the Nissan Versa is a trouble code that indicates your truck has a LARGE evaporative emissions leak. With this code, you shouldn’t notice any symptoms besides perhaps a noticeable fuel smell. P0455 usually is not an immediate threat to the driveability of your Versa. But, whenever the check engine …

2009 Nissan versa 120k miles with engine light on --code P1421 came up for ecm. was told to disconnect battery for 30 minutes and would reset --didn't work. then went on internet and ran thru procedur … read moreCause: Lack of intake air volume. Fuel injection system. ECM. P1421 Nissan Diagnostic Trouble Code (DTC) Definition, Causes and Diagnosis.P117A Nissan Code - Cylinder A/F Imbalance Monitoring Bank 1 - Code Popularity: 29,665 Views - Repair Importance Level: 3/3 - Repair Difficulty Level: 3/3. Table of contents. Created and updated by William Orellana on Jul 26, 2019. Possible Causes; Description; How to Fix; What does this mean?Jan 19, 2018 · I would start by checking the air filter. simple as it is if it's plugged or dirty it is going to slow the flow of intake air and cause this problem. You may also need to do a relearn procedure on the throttle body. In most cases, a new ECM is not required. I have a 2010 Nissan Versa showing code p1421. Is the service bulletin for that model ... Thanks you for watching please like comments and subscribe and share the love help me help you support my channel via PayPal - https://www.paypal.me/Momobos...A leak in the fuel vapor hose leading from the fuel tank to the intake will throw P0442 in your Versa. Fuel Tank Pressure Sensor (If Equipped) If the fuel tank pressure sensor has gone bad, it can cause many problems, including the P0442 code. Not all vehicle’s have a fuel tank pressure sensor. You’ll need to verify if your Versa has one or ...It is also one of the most common codes. The most common causes of P0171 are a bad Oxygen sensor, a vacuum leak, or a dirty MAF sensor. P0171: Fuel Trim System Lean (Bank 1). Check engine light, decreased fuel economy, misfire, hard to find idle. Dirty MAF sensor, vacuum leak, O2 sensor.

Food lion catering trays.

Otherworld legends codes.

Summary: NISSAN: VENT CONTROL VALVE REPLACEMENT. WHEN REPLACING THE EVAP CANISTER VENT CONTROL VALVE FOR REASON: USE THE ONE LISTED ON PAGE 2; FOR VENT CONTROL VALVE REPLACEMENT PROCEDURE, REFER TO THE APPROPRIATE SECTION OF THE ELECTRONIC SERVICE. Communication Number: …Jan 19, 2018 · I would start by checking the air filter. simple as it is if it's plugged or dirty it is going to slow the flow of intake air and cause this problem. You may also need to do a relearn procedure on the throttle body. In most cases, a new ECM is not required. I have a 2010 Nissan Versa showing code p1421. Is the service bulletin for that model ... The P1421 Nissan code is detected when The Engine Control Module (ECM) does not control ignition timing and engine idle speed properly when engine is started with pre-warming up condition. Symptoms. – Engine Light ON (or Service Engine Soon Warning Light) P1421 Nissan Description.how to fix code p1421 nissan versa 2008. asked Jan 8, 2017 by anonymous. p1421; 0 votes. 1 answer 473 views.What is P1421 engine diagnostic code of 2008 Nissan Versa? Updated: 12/16/2022. Wiki User. ∙ 12y ago. Study now. See answer (1) ... What size engine does the 2007 Nissan Versa have?If the water pump fails, the engine won’t be able to maintain a steady temperature and will overheat. A failing water pump can cause your Nissan to overheat and code P1217 to appear. It could be leaking, clogged, or have a mechanical issue that prevents it from working properly. If the water pump is to blame, it will need replacing.The fault code P1421 can be caused by a lack of intake air volume due to a blocked air filter. It can also be caused by a clogged fuel injector or a bad fuel pump in the fuel injection system. Another possible cause is a faulty Engine Control Module (ECM). Fixing Code P1421: Simple Steps To Resolve The Issue!Check engine light on.code p1421,transmission started slipping and now car want move,it will not veven rev up. Mechanic's Assistant: Does the light stay on, or ... I have a 2012 Nissan versa with automatic transmission that is gone but found a low milage 2008 Nissan versa also with automatic transmission but the 2012 has 1.8 four cyl motor but ...Here are the relevant service bulletins from Infiniti:FX50. 2009-2010. Infiniti TSB ITB08048FX35. 2009-2011. Infiniti TSB ITB11007P0456 Nissan - my car is not listed it's a Nissan Versa 2009. 0 votes . 212 views. asked Dec 30, 2017 by Nroman. I have an check engine soon light on and the mechanic had this code he turned light off about 5weeks ago now it's on again what to do now? 2009; nissan; versa; 1 Answer. 0 votes . answered Dec 30, 2017 by anonymous. Your gas cap is ...2 Answers. This issues probable causes are a lack of intake air volume or the fuel injectors and a possible issue with the ecm. I would start by checking the air filter. simple as it is, if it's plugged or dirty it is going to slow the flow of intake air and cause this problem. You may also need to do a relearn procedure on the throttle body.Certainly, most of us will experience times in our relationship when we have particular difficulty expressing Certainly, most of us will experience times in our relationship when w... ….

Jan 19, 2018 · I would start by checking the air filter. simple as it is if it's plugged or dirty it is going to slow the flow of intake air and cause this problem. You may also need to do a relearn procedure on the throttle body. In most cases, a new ECM is not required. I have a 2010 Nissan Versa showing code p1421. Is the service bulletin for that model ... What is the Cost to Diagnose the Code P1421 2008 Nissan Sentra? Labor: 1.0. The cost to diagnose the P1421 2008 Nissan Sentra code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. I have the engine code P1421 on my 2009 Nissan Versa 1.8L. asked ... 2012 Nissan versa with code P0705 and the car jerks when stopped. Vehicle: 2012 Nissan versa nissan; versa; p0705 ... I have a 2010 Nissan Versa with the code P1421, is there a bulletin service for this car? asked Dec 17, 2017 by frank. p1421; nissan; versa; 36.9k questions 32.1k answers 1.3k commentsOneNutShort. 72 posts · Joined 2015. #4 · Apr 20, 2015. It could be a clogged air filter. A clogged fuel injector or bad fuel pump. Or a faulty Engine Control Module. Then again there is a TSB out there for this code, so it may just need to be reprogrammed. I'd lean toward the air filter or the ECM reprogramming.The P0705 code in a Nissan Versa refers to a transmission range sensor circuit malfunction. This code indicates that there is an issue with the transmission range sensor, which is responsible for informing the engine control module (ECM) about the gear position of the vehicle. The P0705 code is a generic OBD-II code, which means it is ... To fix the automobile fault code P1422, follow these steps: 1. Check the possible causes mentioned above. 2. Visually inspect the wiring harness and connectors related to the fault code. 3. Look for any damaged components. 4. Check for broken, bent, pushed out, or corroded pins in the connectors. I have the engine code P1421 on my 2009 Nissan Versa 1.8L. asked Jan 17, 2018 by Robert Carney. nissan; versa; p1421; 0 votes. 1 answer 245 views. I have a 2010 Nissan Versa with the code P1421, is there a bulletin service for this car? asked Dec 17, 2017 by frank. p1421; nissan; versa +1 vote. 2 answers 330 views. Code p1421 nissan versa, To diagnose the P1148 Nissan code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour., 2009-nissan-versa-p1421-p1421; 1 Answer. 0 votes . answered Nov 28, 2017 by OBDIITech (7.0k points) It's a common problem with the Versa and the factory issue a service bulletin for that problem. ... why does code p1421 show up after 100,000 miles-says to reprogram ecu..nissan-versa 2008., I have a 2010 Nissan Versa with the code P1421, is there a bulletin service for this car? asked Dec 17, 2017 by frank. p1421; nissan; versa +1 vote. 2 answers 325 views. 2010 Nissan Versa Hatchback 1.8L with engine code P1421. asked Mar 20, 2018 by kj. nissan; versa; p1421; 0 votes. 1 answer 246 views., I have a 2010 Nissan Versa S 1.8. The service engine soon light came up, went to Advanced Auto to have the code checked. Found P1421 code, Cold Start Control, Short to Ground., El referido codigo P1421 Es referido al Control de arranque en FRIO. - Sistema de inyección de combustible (inyector de combustible obstruido o bomba de combustible defectuosa). - Módulo de control del motor defectuoso (ECM). - Reprogramar ECM., The cost to diagnose the P1421 2009 Nissan Altima Sedan code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour., OneNutShort. 72 posts · Joined 2015. #4 · Apr 20, 2015. It could be a clogged air filter. A clogged fuel injector or bad fuel pump. Or a faulty Engine Control Module. Then again there is a TSB out there for this code, so it may just need to be reprogrammed. I'd lean toward the air filter or the ECM reprogramming., Later on in the evening I came home and started the car up, and Blam. CEL. Ran the codes- the same old fucking too lean bank 1. And the p0507 code. I was able to do the whole idle relearn procedure, and by doing so that cleared the p0507 code. So I started it back up and after a few moments of idle around 700-800rpms the damn p0171 came …, This is a look at my rental car I had in TX Facebook: http://www.facebook.com/dieselducyWebsite: http://www.dieselducy.comFlickr: http://flickr.com/dieselduc..., 2010 Nissan Versa 1.8L with engine code P1421. asked Apr 23, 2017 by anonymous. nissan; versa; p1421; 1 like 0 dislike. 2 answers 564 views. On my 2010 Nissan Versa 1.8L I got the code P1778. asked May 29, 2018 by diablin. nissan; versa; p1778; 0 like 0 dislike. 1 answer 335 views. 2012 Nissan Versa Hatchback (27,000 …, Jan 8, 2017 · I have the engine code P1421 on my 2008 Nissan Versa, check engine soon lite don't get off. asked Jan 5, 2017 by anonymous. nissan; versa; p1421; 0 like 0 dislike. 1 ... , The cost to diagnose the P1421 2009 Nissan Altima Sedan code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour., The range indicator in the cluster showed no selected range no matter what position the shifter was in. Four codes were stored in the PCM: P0706 (Range Sensor “A” Circuit Range/Performance), P0707 (Range Sensor “A” Circuit Low), P1702 (Range Sensor Circuit Intermittent) and P1921 (Range Sensor Signal). When those codes were cleared ..., P1421 nissan versa 2009 parts list manual The control engine tell-tale appears and the Nissan P1421 fault code is stored. Perform the regeneration in the following order:Butterfly valve Closed position Restart procedure Inactive air volume Restart procedureNissan butterfly valve Closed position Restart procedurePerform this procedure to teach the …, Faja. Posts: 414. Joined: Fri Mar 13, 2009 4:26 pm. Car: Sentra 2009. Re: 2009 SE-R Spec V Code P1421? (NSNissan) Post by Faja » Fri Nov 13, 2009 3:25 pm. …, Found it. Cold Start Control - I rummaged around some other sites and confirmed with the dealer. Possible Causes: • Lack of intake air volume. • Fuel injection system. • ECM. The code looks to be the same for Nissan and some others. Screwbaru, according to one site, referred to the air pump :-\., Nissan has issued a service bulletin # NTB09-116a to address a P1421 code COLD START CONTROL trouble code on all 2007 – 2010 Versa models with the MR18DE engine ONLY. The check engine light will …, How to Fix the P2101 Code. Fixing any OBD-II code can be tricky as there is no universal fix available for any code. P2101 is no exception. The exact solution for this code will depend on your vehicle’s specific make and model. For example, the fix for a P2101 code in Nissan may differ from a P2101 code in Chevy., The cost to diagnose the P1421 2008 Nissan Sentra code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour., The P0706 fault code refers to a problem with the transmission range sensor circuit. This sensor is part of the ParkNeutral Position (PNP) switch, which detects the position of the selector lever when it is in the N or P shift position. It then sends a signal to the Transmission Control Module (TCM)., Jun 28, 2020 · The video focuses on the basic Nissan specific diagnostic error code.Contents:0:21 Basic DTC analysis according to OBD2 protocol standard.1:48 Insight into p... , How to fix code P0441 and P1421 Lexus RX 400h 100% ,, P1421 OBDII is a fault code stored by the engine control module when it can’t properly control ignition timing and idle speed when the engine is started up under warm-up …, To diagnose the P1421 2008 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour., 2010 Nissan Versa with the airbag light ON and the B1210 code, how do I fix the problem? Vehicle: 2010 Nissan Versa airbag; b1210; nissan; versa; 1 Answer. 0 votes . answered Nov 24, 2020 by OBDIITech (7.1k points) B1210 NISSAN - Side Collision Detection Read more: https://www.autocodes ..., Nov 12, 2018 · Here’s a good P0420 diagnostic order for the Nissan Versa: 1. Check for Other Codes. The first thing you want to do when trying to fix P0420 in the Versa is to verify there aren’t any other trouble codes. Three types of codes can give clues as to what’s going on with your car. Misfire Codes. , driving home in traffic check engine light came on. idle rough and no power. limped home and checked code with scanner. p0301 misfire cylinder 1. good n..., What is dtc code p1421 nissan versa 2008 and what to do about it. p1421 is a code stored for cold start control. You will have to take it to a dealer so the can reprogram the ECM there is a service bulletin on it Read full answer. Nov 21, 2012 • 2008 Nissan Versa. 2 ..., I have a 2010 Nissan Versa S 1.8. The service engine soon light came up, went to Advanced Auto to have the code checked. Found P1421 code, Cold Start Control, Short to Ground., Code in my 2010 Nissan Versa 1.8 says P1421 says my ECM needs reprogrammed. 131,120. I don’t know if it is an S or SL - Answered by a verified Mercedes Mechanic, I have a 2010 Nissan Versa with the code P1421, is there a bulletin service for this car? asked Dec 17, 2017 by frank. p1421; nissan; versa +1 vote. 2 answers 325 views. 2010 Nissan Versa Hatchback 1.8L with engine code P1421. asked Mar 20, 2018 by kj. nissan; versa; p1421; 0 votes. 1 answer 246 views., P117A Nissan Code - Cylinder A/F Imbalance Monitoring Bank 1 - Code Popularity: 29,665 Views - Repair Importance Level: 3/3 - Repair Difficulty Level: 3/3. Table of contents. Created and updated by William Orellana on Jul 26, 2019. Possible Causes; Description; How to Fix; What does this mean?, Feb 5, 2013 · P1421 is a code stored for cold start control. You will have to take it to a dealer so the can reprogram the ECM there is a service bulletin on it. Colin Stickland. 22516 Answers. Posted on May 07, 2009. SOURCE: i need to replace a nissan versa 2008 front bumper. just take it slowly and look for the fixing bolts ,