2001 Chevrolet Silverado 1500 40 pcm codes can't be all the sensors and dont have a bunch of money to dump into
40 pcm codes can't be all the sensors and dont have a bunch of money to dump into
What is your question?
vehicle runs and drives, however boggs out ocasionally while driving. getting 40 pcm codes all fail including throttle position sensor and knock sensor i just replaced both knock sensors and tps i don't believe that all the sensors are bad vehicle did hit a deer and was repaired shortly before acting up during the impact the pcm was dislodged from the case but looked to be fine and didn'tsee any pinched or damaged wires. Is it possible that the pcm is bad or should i check the wires again Codes p0101 p0106 p0112 p0113 p0117 p0118 p0125 p0128 p0131 p0132 p0133 p0134 p0135 p0137 p0138 p0140 p0141 p0151 p0152 p0153 p0154 p0155 p0157 p0158 p0160 p0161 p0171 p0172 p0174 p0175 p0300 p0325 p0327 p0332 p0335 p0336 p0341 p0342 p0343 p0401 dont have alot of money to dump into sensors if not the issue most codes are for o2 sensors could that trip the other codes as well any help would be greatly appreciated
What makes this problem better or worse?
Warms up
How long has your 2001 Chevrolet Silverado 1500 had this problem?
Since accident with deere already replaced both knock sensors and throttle position sensor
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Hello, most often, when you get that many diagnostic trouble codes, a significant amount of them are erroneous or related to another failure.
I would recommend clearing all codes and driving the vehicle and see what returns.
Also, using a diagnostic tool to monitor all these related systems and components is the next step of diagnostic testing.
Don't just guess at a processor replacement. Since you had an accident and physical damage, it's possible you have other problems present that are outside the norm, including wiring concerns. Since there was physical dislodging of the processor, sure -- it could have an issue as well. Hard to say.
I'm having the same issue, 40 codes, mostly for O2 sensor, and then the knock sensors and throttle body sensors, I'm wondering if you've found a fix and what that was, so far I've diagnosed the PCM needing to be replaced but I'm not sure.
Hey, Im having the same problem with my 01 gmc 2500 8.1 vortec. Truck was in a rollover. Swaped the cab and box. PCM throws 40 codes and Tcm throws 7 codes. The codes come back before I can restart the truck. I haven’t been able to find any bad grounds. I’m starting to think the pcm and Tcm got damaged in the roll over. Have you had any luck diagnosing your issues?
I'm having the same issue, 40 codes, mostly for O2 sensor, and then the knock sensors and throttle body sensors, I'm wondering if you've found a fix and what that was, so far I've diagnosed the PCM needing to be replaced but I'm not sure.
Hey, Im having the same problem with my 01 gmc 2500 8.1 vortec. Truck was in a rollover. Swaped the cab and box. PCM throws 40 codes and Tcm throws 7 codes. The codes come back before I can restart the truck. I haven’t been able to find any bad grounds. I’m starting to think the pcm and Tcm got damaged in the roll over. Have you had any luck diagnosing your issues?