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Apr 24, 2019 · P0113 Code: Everything You Need To Know [Updated] Modern cars contain dozens of sensors that monitor everything from radiator pressure to engine temperature to the amount of CO2 in your emissions. Since any of these issues can cause your “check engine” light to come on, it’s no surprise that that particular light causes a lot of ... May 01, 2013 · Denali: I have a 2007 GMC Denali with codes P0121, P0174, P2119 I have a 2007 GMC Denali with codes P0121, P0174, P2119 and P2135. I have changed the tps connector and reprogrammed it to a 2008 so far yet I still have these codes and it's in and out of limp mode.
P0121 Diagnostic Trouble Code Discussion for March 2009 Throttle Position Sensor Does Not Agree With MAP * Note: This is a professional automotive technician's resource. Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder. Page 1 of 4: How to Test the GM Accelerator Pedal Position (APP) Sensor 1. Symptoms of a BAD APP Sensor 1. What Tools do I Need? Circuit Descriptions of the APP Sensor Assembly Connector. Jan 15, 2018 · 2011 GMC Sierra 2500 HD / ... Check engine light code PO121 (2011 GMC Sierra 2500 HD) where is the throttle position sensor located om my 6.0 engine . in Logan, WV on . Aug 31, 2018 · Code P0121: Throttle Position Sensor (TPS) "A" Circuit Range Performance Problem. FIXD explains symptoms and causes with guide to fix engine code P0121 You currently do not have any widgets inside Off-Canvas sidebar.
2008 GMC Sierra with p0121 (Throttle Position Sensor) P0121p P0304 (Cylinder 4 misfire detected) P0304p First of all, whats the difference between the code with and without "p" in front of it? secondly, can one code cause the other? which code should I work on first? When it comes to misfires, can a simple spark plug change fix the problem? A general measurement is: at idle = .5 Volts; full throttle = 4.5 Volts. If the PCM detects that the throttle angle is greater or less than it should be for a specific RPM, it will set this code. A Code P0121 May Mean that One or More of the following has Happened: * TPS has intermittent open or short internally P0121 Gmc Description The throttle position sensor ( TPS ) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module ( ECM ). Apr 19, 2015 · Do you have a 2007-2008 Chevy Avalanche, Silverado or GMC Sierra and are experiencing an illuminated check engine light and stored code P0121 and possibly a ...
I have a 2012 GMC Sierra 1500 5.3 V8, and last week I started getting a code P0521. On Friday when I got in the truck to leave the house my pressure gauge read 0! Knowing that I was almost due for an oil change I went ahead and changed the oil, no change in guage. Feb 19, 2010 · Truck idle high after throttle cleaning code P0121 Unread post by Roy » Wed Apr 03, 2013 1:52 pm After cleaning carbon from the throttle body of my 2008 Chevy Silverado it seems to idle up and down, but it stays idling high after i give it a little gas then come to a stop.
Aug 25, 2018 · P0121 Chevy Silverado. P0121 is a somewhat common trouble code with the Chevy Silverado. It’s an OBDII code and has to do with the Throttle Pedal Position Sensor. It is relatively serious problem since it leaves your vehicle in failsafe mode. OBDII code P0121 is a serious problem that requires serious attention. Now that we covered the best case scenario let’s talk about other reasons for seeing the reduced engine power message on the instrument cluster. If you scan the vehicle you often find a diagnostic trouble code P1516. This code sets when the engine control module detects the throttle actuator reporting unreliable information.
Page 1 of 3: Troubleshooting P0172 and P0175 (GM 4.3L, 5.0L, 5.7L). P0172 and P0175 Diagnostic Essentials. How Does the PCM Know a Rich Condition Exists? Short Term (ST) Fuel Trim and Long Term (LT) Fuel Trim Explained. Feb 12, 2018 · Chevy Truck Forum | Silverado Sierra GMC Truck Forums. P0121 Code, No CEL. ... P0121 Code, No CEL. Feb 12 2018, 5:04pm. This is the info I have for my 1999 NBS for a ...
Welcome to the GMC Check Engine Light codes page. Below you will find the most complete list of GMC 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 from there? The curse of the P0121 Code... This code is infamous for giving people with larger cams fits...everything from traction control troubles, to shift point issues to just the good ole' P0121 code showing up for seemingly no reason making people scramble to purchase new Throttle Position sensors, adjust their set screws, etc, etc.