So I still have not figured out my missfire problem. this time I will post a video along with this. I have replace the coil packs, plugs, plug boots, maf, and tps. The injectors sound like they are all working properly if I place a screwdriver to it, and listen. At this point I am thinking it is a wiring problem and I am just looking for suggestions before I take it to a specialty shop. Thanks everyone

bump

Have you checked to make sure all the coils are getting power and signal? Checked your grounds? CAS?

flartius wrote: ↑

Thu Mar 22, 2018 4:30 am

Have you checked to make sure all the coils are getting power and signal? Checked your grounds? CAS?

I have re wired the ground for the coil packs, is there anymore I should look for? And I have not checked signal but I know all of the packs are sparking when I pull them atleast. All of my plugs are fouling out along with this missfire. Also have not checked cas so I will try that

pasn0w43 wrote: ↑

Sun Apr 01, 2018 7:45 pm

All of my plugs are fouling out along with this missfire.

When you pull the plugs is there a lot of fuel on them causing them to foul? And just to be clear are ALL of your plugs fouled?

flartius wrote: ↑

Mon Apr 02, 2018 5:04 am

pasn0w43 wrote: ↑

Sun Apr 01, 2018 7:45 pm

All of my plugs are fouling out along with this missfire.

When you pull the plugs is there a lot of fuel on them causing them to foul? And just to be clear are ALL of your plugs fouled?

Every plug is black but no wet fuel on them. Not sure if that means all the coil packs are not getting enough power?

pasn0w43 wrote: ↑

Sun Apr 08, 2018 4:24 pm

Every plug is black but no wet fuel on them. Not sure if that means all the coil packs are not getting enough power?

Then I don't think you have an injector leaking, maybe one that is gummed up and not functioning properly.

I wouldn't be so concerned with the coils not getting enough power as I would not getting an adequate ground. Are you buying quality plugs and gapping them to spec?

Is this an S1 or S2? If it is an S1 there is a section in the FSM for troubleshooting the ignitor to make sure it isn't on the way out.

You could have a vacuum/boost leak, mine stumbled around and was hard to crank and idle when it had a loose coupling.

The CAS could be a little out of time or on the way out, you can turn the ignition on and spin the CAS by hand and should hear coils firing.

You also stated that you replaced the TPS, did you follow the writeups/FSM on how to adjust it?

Sorry for all the one liners, just trying to go over in my head and bounce ideas to you that might help you or someone else identify your problem.

conduct a vacuum leak test, 99% of the time it usually is, seals can corrode on injectors, gaskets deteriorate etc, spend bit time checking the pipes.