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Swapped out a ton of parts engine included, LS3 intake, LS2 throttle body, LS3 injectors, LS2 402 body end, LS3 Heads, Org coil packs, New starter, New fuel sending unit.
I get 2 codes P1571 and P0327
Car will idle forever without dying.
After driving a few blocks it dies.
If i don't clear the codes it wont start again just turn over.
If i clear the codes it starts.
Hi Robert !!
Did you do all these swap out of parts at the same time and did you start having your driveability issues then ??...as far as the 0327 knock sensor DTC did you change the knock sensors ??..if not I would check the wiring and do the easy stuff first...if the knock sensors were changed torqueing them correctly is imperitive. Now as far as the 1571 (TC Torque Request Circuit) do you have a decent scan tool where you can see if you can communicate with the EBCM and check your requested torque PWM duty cycle...should be 90% at idle as in the data PID on my '01...by the way what year is your car ??...ALWAYS helps to put all that info and mods in your user profile...Now the PCM reduces spark timing AND it starts turning off fuel injectors if it's sees an incorrect torque signal...with a scan tool you can also see your spark timing data PID and check it during the loss of power...
that's maybe why the car is dying on you...I don't know if you are any good with electrical but you can see if you have 5 volts at pin 12 of the EBCM (orange/black wire). I would disconnect the EBCM connector and see if you have the 5 volts with the key on...not sure if you will only see 5 volts with key on or with the engine running but you can check that...hope this may help !!
Hey,
Sorry i've taken so long.
I've resolved the p0101 code it was the oil cap vent and the fuel pressure regulator. (had this code on and off thought it was the cause)
I ordered hptuners but I do have dash command it might be able to give me what you are asking for.
I am smelling what you are cooking though as far as the code causing the car to shut off. From what I figure I can just disable it when I get hp tuners and see if that does it?
Also my multi meter needs a new battery so i wont be able to check that until monday. I do also have a another pcm. I am very good with following instructions. I feel like it could be the pcm too but who knows. Had no issues like this before. I would imagine that the code is causing the issues or something along those lines.
Last edited by robert1989; Apr 30, 2020 at 03:35 PM.
Car dies after driving
