2000 Chevrolet Error Codes
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you will find the most complete list of Chevy trouble codes available. The code definitions are a good starting point when determining the cause of the service engine light but where do you go ford error codes from there? We have a large number of resources to help you repair the
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problem. Here is how we suggest you proceed. Look up your code definition. This tells you where to start testing.
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If you are unsure of any abbreviations, check out the acronym list by clicking on the link at the left. Next, read our article Automotive Circuit Testing, and if there is an article related to
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the system you are testing, such as Oxygen Sensors or EGR concerns, read these as well. They will provide valuable info! If there is a link to a specific diagnosis strategy for the code then follow that and start testing. If there is no procedure for your manufacturer specific code, then I suggest referring to a similar generic OBD II code (these are listed numerically by system type) to pontiac error codes get a good idea of what to look for. If at this point you still need assistance use the "Get Help" link and let us know how we can help. We can provide information on component location, specifications, circuit color/location and more. We do ask that you please read the info available on the site first so that we can help reduce repeat questions. So please read our Disclaimer and when you're ready jump in! Also, we value your feedback and like to hear stories of unusual fixes or concerns you may have run into with your Check Engine Light, so feel free to share your experiences by using the "Contact Us" link. Let's go! We do our best to update these Chevy Check Engine Light codes as frequently as possible. If you find one missing let us know and we we'll add it immediately! Please use the form on our Contact Page to get in touch with us. We certainly understand how frustrating it can be to look for a code definition and have it not online when you need it. And lets face it, if the service engine light is on then you need it now! It's easiest to use the "Find O
Difficulty Level:3/3 Share | Add Comment http://www.autocodes.com/p0171_chevrolet.html Forum Code Possible causes - Intake air leaks- Faulty front heated oxygen sensor- Ignition misfiring- Faulty fuel honda error codes injectors- Exhaust gas leaks- Incorrect fuel pressure- Lack of fuel- Faulty Mass Air Flow nissan error codes (MAF) sensor- Incorrect Positive Crankcase Ventilation (PCV) hose connection What does this mean? Tech notes If the P0171 is combined saturn error codes with the P0174 code, it's very likely that the problem is caused by an intake leak. If there are no intake leaks, the next step is to replaced the air filter and clean the air https://www.engine-light-help.com/chevy-check-engine-light.html flow meter. If the problem persist the front oxygen (O2) sensor may need to be replaced.The P0171 code could also be caused may be caused by one or more of the following: debris on MAF sensor causing an incorrect reading, improper oil level, low or high fuel pressure or Engine Control Temperature (ECT) Sensor reading inaccurate.There is a factory service bulletin for the following Chevrolet models:2000 Chevrolet S-102000-2008 Chevrolet Camaro2000-2008 http://www.autocodes.com/p0171_chevrolet.html Chevrolet Lumina2000-2008 Chevrolet Cavalier2000-2003 Chevrolet Impala2000-2003 Chevrolet Malibu2000-2003 Chevrolet Monte Carlo2000-2003 Chevrolet Silverado2000-2003 Chevrolet Suburban2000-2003 Chevrolet Tahoe2000-2003 Chevrolet Venture2001-2008 Chevrolet Express2002-2008 Chevrolet Astro2000-2003 Chevrolet Avalanche2000-2003 Chevrolet Trailblazer2003-2008 Chevrolet Blazer2003-2008 Chevrolet S-102003-2008 Chevrolet Trailblazer EXT2000-2008 Chevrolet Factory Service Bulletin OBDII Code P01712006 Trailblazer P0171User Submitted Video What does this mean? When is the code detected?- Fuel injection system does not operate properly.- The amount of mixture ratio compensation is too small. (The mixture ratio is too lean.) Possible symptoms- Engine Light ON (or Service Engine Soon Warning Light)- Excessive Fuel Consumption P0171 Chevrolet Description The Engine Control Module (ECM) controls the air/fuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. Fuel delivery is controlled differently during Open Loop and Closed Loop. During Open Loop, the ECM determines fuel delivery based on sensor signals without heated oxygen sensor (HO2S) input. During Closed Loop, the ECM adds HO2S inputs to calculate the short and long term fuel trim (FT) adjustments. If the HO2S indicates a lean condition, the fuel trim values will be above 0 percent. If the HO2S indicates a rich condition, the FT values will be below 0 percent. The short term FT values change rapidly in response to th
Possible causes - Intake air leaks- Faulty front heated oxygen sensor- Ignition misfiring- Faulty fuel injectors- Exhaust gas leaks- Incorrect fuel pressure- Lack of fuel- Faulty Mass Air Flow (MAF) sensor- Incorrect Positive Crankcase http://www.engine-codes.com/p0171_chevrolet.html Ventilation (PCV) hose connection What does this mean? Tech notes If the P0171 is combined with the P0174 code, it's very likely that the problem is caused by an intake leak. If there are no http://www.cngchat.com/forum/forum/cng-vehicle-discussion/gm-chev-vehicles/1962-2000-chevy-k2500-engine-light-error-code-p1345-what-does-it-mean intake leaks, the next step is to replaced the air filter and clean the air flow meter. If the problem persist the front oxygen (O2) sensor may need to be replaced.The P0171 code could error codes also be caused may be caused by one or more of the following: debris on MAF sensor causing an incorrect reading, improper oil level, low or high fuel pressure or Engine Control Temperature (ECT) Sensor reading inaccurate.There is a factory service bulletin for the following Chevrolet models:2000 Chevrolet S-102000-2008 Chevrolet Camaro2000-2008 Chevrolet Lumina2000-2008 Chevrolet Cavalier2000-2003 Chevrolet Impala2000-2003 Chevrolet Malibu2000-2003 Chevrolet Monte Carlo2000-2003 Chevrolet Silverado2000-2003 Chevrolet Suburban2000-2003 Chevrolet Tahoe2000-2003 Chevrolet Venture2001-2008 2000 chevrolet error Chevrolet Express2002-2008 Chevrolet Astro2000-2003 Chevrolet Avalanche2000-2003 Chevrolet Trailblazer2003-2008 Chevrolet Blazer2003-2008 Chevrolet S-102003-2008 Chevrolet Trailblazer EXT2000-2008 Chevrolet Factory Service Bulletin OBDII Code P01712006 Trailblazer P0171User Submitted Video What does this mean? When is the code detected?- Fuel injection system does not operate properly.- The amount of mixture ratio compensation is too small. (The mixture ratio is too lean.) Possible symptoms- Engine Light ON (or Service Engine Soon Warning Light)- Excessive Fuel Consumption P0171 Chevrolet Description The Engine Control Module (ECM) controls the air/fuel metering system in order to provide the best possible combination of driveability, fuel economy, and emission control. Fuel delivery is controlled differently during Open Loop and Closed Loop. During Open Loop, the ECM determines fuel delivery based on sensor signals without heated oxygen sensor (HO2S) input. During Closed Loop, the ECM adds HO2S inputs to calculate the short and long term fuel trim (FT) adjustments. If the HO2S indicates a lean condition, the fuel trim values will be above 0 percent. If the HO2S indicates a rich condition, the FT values will be below 0 percent. The short term FT values change rapidly in response to the HO2S voltage signals. The long term FT makes coarse adjustments in order to maintain an air/fuel ratio of 14.7:
List Home Forum CNG Vehicle Discussion GM / Chev Vehicles If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. Announcement Collapse No announcement yet. 2000 Chevy K2500 engine light... Error code P1345 ??? What does it mean? Collapse X Collapse Posts Latest Activity Search Page of 1 Filter Time All Time Today Last Week Last Month Show All Discussions only Photos only Videos only Links only Polls only Filtered by: Clear All new posts kirkbenge Member Join Date: Dec 2007 Posts: 132 #1 2000 Chevy K2500 engine light... Error code P1345 ??? What does it mean? 06-05-2008, 04:41 PM My brother has a '00 Chevy K2500 pickup Bi-Fuel 4X4 and this weekend he replaced the plugs and wires (his wires were really bad and he was starting to have some backfiring). Well, some of the plugs were kind of hard to get at, and evidently he ended up having to disconnect some of the CNG components to get at everything, not to mention climbing around in there bumping stuff. Well, when he got it all back together it ran beautifully. But now engine light is always on. I have a simple code reader, and it always shows the code P1345 and P1345 pd. If I erase them, they re-appear on start-up. My manual doesn't show interpretations for codes that high, so I'm not able to interpret the code. My bother called me today and said that he went to his mechanic friend (knows nothing about CNG), and the the mechanic said that he felt the code was related to distributor alignment??? Anyway, the mechanic looked it over and said that he could find nothing wrong on anything he recognized, but that he felt the problem must be t