Tags

pcm

Intermittent P0341/0 code

Along with the horrific, what feels like torque converter shuddering this 1997 K1500 Vortec 5.7 occasionally gets, which could be related, I’m wanting to know what can be done about my P0341/0 code that comes and goes, sometimes fixes itself, other times, can be cleared and doesn’t come back for...
- jmaples531
- Thread
- Sep 13, 2023
- 5.7l vortec acdelco cam sensor daily driver distributor p1341 pcm service engine soon timing z71
- Replies: 3
- Forum: Engine Performance + Maintenance
Running a Vortec 5L with a 5.7 PCM..

Been using the PCM from the parts truck the 5L was in for a few months now, but it thinks I'm geared to 3.73 and am running 254/75R16s (30.5s). The 5.7L PCM (which is now back in the truck with the 5L engine and running) obviously thinks the engine is bigger, but is correctly programmed for the...
- Jesse_Wenting
- Thread
- Jan 13, 2022
- pcm vortec 350
- Replies: 1
- Forum: 96+ Vortec Performance + Computer Swaps
Pre ‘93 4L80E

I was handed down a truck with a plethora of electrical gremlins. I’m currently redoing the wiring harness which was damaged in a fire. I’ve read that prior to 95 the 4L80E didn’t have a crank position sensor? I also can’t find one (engine has been pulled by me) is it perhaps integrated into the...
- Amsterdamned96
- Thread
- Dec 5, 2020
- 4l80e pcm
- Replies: 2
- Forum: Transmissions
B
Dash Wiring

My 95gmt400 lost power to more than half the dash (speedo, volt, fuel) everything but the rpm. Now a week later with the key in the run position, the truck acts as if I do not have the key in the ignition. (Siren for the headlights left on) A shop made the truck run outside of of the pcm due...
- Big_Blue_95gmt400
- Thread
- Sep 11, 2020
- dash gauge cluster key pcm wiring
- Replies: 13
- Forum: Engine Performance + Maintenance
B
No Fuel, No Spark

So I decided to save a 95 Sierra standard cab short box 4x4 5.7L auto truck from the crusher at our local salvage yard. When I got it, it was in pretty rough shape but the body was good and I was told that it ran when it was brought in. I guess this is all a story for another post so I'll get to...
- beaugranbois
- Thread
- Feb 18, 2020
- ckp crankshaft position sensor ecm ecu no fuel no sparl no start pcm
- Replies: 9
- Forum: Engine Performance + Maintenance
Auto to Manual PCM

I have a 96 K1500 (5.7 Auto) which I am going to manual swap. I have a complete donor truck which is a 91 K1500 (4.3 5 Speed). Now I've done tons of research and know just about everything to do with this swap except for what to do with the PCM. Will the 350 auto PCM work with the 5 Speed? I've...
- MasonBraaps
- Thread
- Dec 4, 2019
- manual swap pcm tranny swap transmission
- Replies: 12
- Forum: Transmissions
Mysterious C0236 - Missing Rear Speed Sensor

I've been struggling to sort out the ABS in my 1998 K2500 since I bought it. At this point I'm stumped. Current situation is as follows: Speedo works fine. ABS light and C0236 code are triggered as soon as brakes are applied after moving (<20mph). ABS does not function and rear wheels lock up...
- LoCascio_Inc
- Thread
- Sep 29, 2019
- abs abs light c0236 code code c0236 diagnosis missing rear speed sensor pcm speed sensor troubleshooting
- Replies: 9
- Forum: Axles + Brakes