1997 4L60E issue

[FastOrange]

Also, fastorange, I like your truck..... and that's saying something, because normally I don't care for chrome/shiny silver anything haha but your's seems to pull it off with a good look.

Thanks!

 

[Poser]

So I took out the scanner today and the truck threw 5 codes.
P1345 - cam to crank sensor error (something like that)
P0121 - Throttle position sensor
P0122 - Throttle position sensor
P0302 - cylinder 2 misfire
P0108 - Manifold Air Pressure sensor.

Looks like the TPS is the issue. I'm a bit worried about the other three codes, though.

 

[Justme168]

the other 3 are timing issues, could be a timing chain

 

[Poser]

Replaced the TPS this morning and it's still throwing all the same codes. Do I have to clear the codes in order for the truck to run normally again?

Also, The truck will occasionally sputter and die if you let off the gas abruptly.

 

[blacked94blazer]

Yes you have to clear the codes if they have not run and passed in the pcm internal circuit checks. Sounds like you could have a wiring issue if the codes reapperar, also has the lower intake manifold ever been replaced or the distributor loosened, if so and the base timing is not within 1 degree plus or minus of 0 the a check engine light will set. Back to the trans does your scan tool read transmission data? If so then that would be a great help in diagnosing the problem.