murderedSS

No I can not clear the codes endless I unhook the battery that's the only way I have been able to clear codes and as long as the code is clear TB works amazing so not sure what's up with it

murderedSS

No I never move the blade by hand but I will take it off and clean it and maybe it will help thanks

murderedSS

Ok I have did everything that everyone said wiggled wire put dielectric grease on all connections and the code went away didn't have to unhook my battery but now I get p1518 and all I have to do is clear it and it goes away until I shut it off then it may come back the next time or 3 days later any ideas

DrX

iTrader: (7)

A poor ground or having the TAC module powered when the PCM is not will set P1518. Check the engine harness ground wire and its connection to the top, right, rear of block. Check the ground connections to the frame outboard of the driver's feet area. Check that the TAC module is not getting 12V when the ignition is off. Check the Ignition 1 relay ...just swap it with the starter relay.

TX Tahoe Z71

iTrader: (28)

You have access to another working ls3 TB you can swap on to rule that out?

Abendigo7

Hi Everyone, I'm hoping you guys can help. I've been having relatively consistent but intermittent issues with various codes and frequent rep mode (reduced engine power) for a couple of years but thought I was narrowing in on it until today... I've had it go into rep mode a couple of times the last month or so but I could usually just clear the codes and move on. This afternoon right after getting gas it went into rep mode, I've tried everything I can think of that's worked in the past, checked all the wires/connections, disconnected the battery, cleaned the throttle body, maf sensor, air filter.... Anyway, I can't even clear the codes it's just staying in rep mode and giving the obligatory U1000 and p2135. Could the ecm be fried? Could the tac module? I swapped out the throttle body today also and I'm also running an Xlink for the 5.3 to 6.2 conversion on an 06 Avalanche. Anybody got anything for me could the Xlink be the issue?

DrX

iTrader: (7)

Any of the other codes that you've been experiencing still present?

Knock sensor- reduced engine power?

stereo-ignition switch issues?

idle question

Abendigo7

I have in the past had knock sensor codes but nothing currently, incidentally, I had to cut the threads down on the knock sensors for them to fit in the factory location (see the 5.3 to 6.2 conversion). I have also had relatively recent issues/difficulties with the ignition key turning, or not turning to be exact, I have to wiggle it, also occasionally the stereo will stay on after the ignition is off, key removed & doors open. None of those codes are currently present only p2135 also the codes for the tire pressure monitors is popping up, I do have one sensor that works intermittently which would explain it. Any idea why it would stay in rep mode, the code always stays present on the dash and in the reader?

Thanks again!

Abendigo7

It does also hunt around a little when idling. So all of the above....

Abendigo7

I forgot to mention that I replaced the factory throttle body connector and wire about a foot back. It currently has butt connectors while waiting on the crimp tool and pins. It's been like this for a few weeks related to the recurring rep mode.