350 tbi rough idle no power

[jacobdavis1979]

Ok heres some pics of the pickup coil
Im not an expert on dizzys but should they look like this?

 

[jacobdavis1979]

Oh my god guys! I was pulling the distributor so i had a core to go buy a new one THE TIMING WAS 180 OUT. I thought i checked this twice before but i guess i didnt. Im so freakin mad right now you have no idea. Im really sorry for wasting everyones time i feel so bad now. All i wanna say is thank you guys so much for the advice 🙂
I still cant believe that i didnt check this i thought for sure i did DAMMIT!
I got the stupid thing dropped in the right way for sure now I HOPE! #1 at TDC lined up rotor with it. Im gonna put the cap back on tomorrow and see how it runs. Im so sorry for wasting your time guys

 

[pontiacgp]

you're a man owning up to that....we have all made mistakes like that and even worse...welcome to the club.. 🙂

I'm glad it's fixed, that's the main thing

 

[jacobdavis1979]

well i have yet to fire it since re dropping the dizzy so for all i know im wrong on that too. But il get right on it after work and if it runs worse il get back to you.

Thanks so much for the help guys 🙂

 

[mac61891]

I just skimmed through your post. I don't believe that the distributor is your issue. I hope I am wrong and you can be done chasing issues with, what sounds, like a nice truck. But, you said that you did put a timing light on it. It needed to be out of time to make it run, but it was there. I sounds to me that the electronic spark controller is likely faulty. It controls the advance and such. But, with all the codes, it is not your only issue. The fuel injection relied very little on the O2 sensor (singular). It would run rich with it unplugged, but not run bad. MAP, TPS, and Temp are far more important to the TBI system that GM used. AND OBD1 does not store codes like OBD2. the codes you have are going to be current (failed this ignition sequence). All that being said, I would lean towards the PCM being faulty, (but not encouraging replacement until you can check it out thoroughly). One or more of the listed items about could, if shorted cause PCM issues that would set other codes due to partial shutdown. The OBD1 PCMs were very resilient, not like the newer OBD2 units.

 

[jacobdavis1979]

well like i said i replaced every sensor and the pcm. A short is what i asked about in an earlier post but no one acknowlaged it . My pickup coil in the dizzy has 2 open wires in it but they dont touch anything. Im on my way home with a new dizzy now to see if that changes anything.
First fire up it runs like a champ for 5 minutes then it starts running rough. Somthings getting hot.

 

[jacobdavis1979]

well like i said i replaced every sensor and the pcm. A short is what i asked about in an earlier post but no one acknowlaged it . My pickup coil in the dizzy has 2 open wires in it but they dont touch anything. Im on my way home with a new dizzy now to see if that changes anything.
First fire up it runs like a champ for 5 minutes then it starts running rough. Somthings getting hot.

 

[jacobdavis1979]

well guys i am proud to announce that the truck is fixed running like a champ! Not sure which fixed it the timing or the pickup coil as i replaced the whole dizzy but this thing is running awesome and sounds mean! Took it up the road and it just lights off the tires without trying lol

Thanks for the help guys couldnt of done it without you 🙂🙂🙂

 

[pontiacgp]

That's awesome and only a few posts back you were ready to toss in the towel for an HEI.... 🙂

 

[jacobdavis1979]

I know right lol. So my advice to everyone on this is dont give up till the end cuz if i did put a carb on it id probly still be mad i didnt know how to fix it you know. Nothing against carbs i love em but tbi works real good too when everything works lol and it was a good learning experience.
Maybe il make the malibu fuel injected one day since ive learned so much about em.