Alright that makes since. Thanks for the advice. Is it common for those solenoids to go out?

I've had good luck running a can of Sea Foam on occassion for gunk clean up

Alright so I let the truck sit and think about what it's done the past couple days. I went out and let it run for a bit. Rechecked codes and now I'm getting code 34 stepper motor fault and 91-98 cylinder misfire. I'm confused because the other day I had a crank sensor error and others too. Can the stepper motor cause a cylinder misfire on all cylinders?

Here's my "somewhat" educated "guess":

Your timing is still out and why the truck runs like crap.

The PCM is trying to adjust the timing with what it has at it's disposal; The stepper motor.

But the stepper motor doesn't have enough authority since you are so far out on the intital pump timing.

The PCM then thinks the stepper motor isn't working correctly because it isn't doing what is being commanded.

Hence, the PCM is setting code 34; Stepper motor fault.

And now we're right back to the need for you to adjust your pump and set TDCO....

:pca1:

The only reason I don't think it's the timing is because it ran great that morning then when I went to restart it started acting up.

Already explained that bro.

Everything you have brought up here points to an incorrectly timed pump.

I could be something else, but not as likely as pump timing.

Your time, your dime, your call....


:pca1:

bring it to a shop ahve them read the pump timing it should be 3.5 degrees

thats probably what im gonna try to do today if the local shops dont want some aborbant amount of money to hook up a scanner.

update: only one shop within an hour and they want $179 just to hook their scanner up to it. i think ill pass. think anyone on here might have one and live in virginia/northcarolina area

You can buy a program called "car code" for around 60 bucks that will do it for your truck.

That would be great but isn't car code obd ii only?