Help! 04 in reduced engine power
Thread Starter
5th Gear
Joined: Oct 2016
Posts: 5
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Help! 04 in reduced engine power
04 ls1 m6 37k miles, already cleaned the grounds,and changed the battery throwing a bunch of codes. Pcm all are current codes 0120 0220 1516 then if i reset then 2101 shows up and the others are gone. Shut the car off and restarr and the others show back up but not the 2101 code.the only other current code is tcs code 1278. Then there are many other codes all h in other parts of the car. Im thinkin pcm but would like sumbody elses opinion.
Moderator, Tech Contributor
Joined: Sep 2013
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From: Cape Coral, Florida
Your DTC’s point to the TPS Sensor and the TAC Module...don’t know your electrical “skills” but if you’re not proficient in using at least a DVOM I would disconnect the TPS Sensor, TAC Motor and TAC module electrical connections and inspect for loose connections, corrosion, or bent pins !!
Last edited by C5 Diag; Jun 29, 2020 at 11:00 AM.
Thread Starter
5th Gear
Joined: Oct 2016
Posts: 5
Likes: 0
Your DTC’s point to the TPS Sensor and the TAC Module...don’t know your electrical “skills” but if you’re not proficient in using at least a DVOM I would disconnect the TPS Sensor, TAC Motor and TAC module electrical connections and inspect for loose connections, corrosion, or bent pins !!
