Need a expert in misfire investigation...

[Kbrown]

As the title states im lookin for some help with my car....

I have pretty much NOOOO tools at my place and im lookin for either someone that could come help me out in Huntley or someone that i can tow my car to....

story:

i just did a build adding a TEP built tranny and a xp cam in my 01 gtp... i went up to green bay to have a close buddy of mine help me out...well on the way back, i ended up getting a misfire and now i cant drive the thing anywhere. after waiting 5 months, getting it built, being happy during the drive back.... now i have to have it sit in the garage again and be pissed off....

any help would be appreciated.... as far as payment, i can stock a fridge of beer but thats about it as im pretty tapped for money currently....

thanks

Heres a few pics of how it looked when i was in green bay....

Click to read more...

 

[TonzKnock-G]

Do u mean a misfire code or the car is misfiring bad as you drive it?

who did the install? check your plugs?

 

[TinMan]

Did you triple check your camshaft timing?

 

[Kbrown]

ok, heres what ive done so far....

- pulled all except the #4 plug (couldn't access it with the tools i had)...
- checked to make sure all the wires were seated correctly

what is happening is that the car is having a constant misfire (one cylinder is dead), i had the same thing happen to me when i was going up to Michigan and it ended up being a bad injector... i NEVER have been able to get my injectors to seal so no matter what ive had a vacuum leak, thus i plan to buy new injectors and new fuel rails along with a new set of wires...however, i sure would like to be able to narrow down whats going on.....

regarding the spark timing. i would question that, however, as i stated i drove from green bay all the way to Milwaukee before i ever had a issue with the car. as i said the car had sat for quite some time so i know there's bound to be something that was going to be needing replacement.

 

[bikrboy128]

is the engine light on?
you say the injectors are leaking....vacuum i assume?

 

[Kbrown]

is the engine light on?
you say the injectors are leaking....vacuum i assume?

yes, vacuum leak, ive never been able to get the 42.5's with the zzp rails to seal up....

no engine light on, misfire code is taken out in this tune, due to cam, im on currently otherwise i could scan to figure it out..

 

[bikrboy128]

did you use any lubrication on the injector O-rings when installing them?
a vac leak will cause a misfire....

 

[Kbrown]

last build i did we spent 2 days trying to get these damn things to seal....

couldnt tell you if we did this time or not, i was working on the axel's when my buddy was putting the top half on...

 

[mr.gto]

Why don't u give this a quick try. Run to ur local auto store pick up a spark tester and test each wire. To at least see if ur getting spark. That's a inexpensive first step

 

[Kbrown]

sounds like a plan, im going to try to pick up a socket for the coil packs as well and swap those MSD ones out with the stock ones.....

EDIT: any GP people know what size socket that i need for those coil packs??

 

[bikrboy128]

it's small, 5.5mm i believe.
i bet you will seal the injectors o-rings with some white lithium grease....

 

[Sinister Drag Designs]

You most likely need to bend the ZZP fuel rail brackets to get them to seal. We have had to do this a few times as well as other people to get them to work.

 

[Kbrown]

ive put grease in there before, it ends up just sucking through it....

and i have tried bending the rails, there's vice grip marks on the pedestals to prove it. I think im going to buy the Wbody rails..... anyone using these or have reviews of these?

 

[Mike K]

They're two different setups. Ours our more of a stock look alike replacement. They're not as cool looking as the ZZP logs but don't have all the problems of the ZZP logs either.

You posted about this on ClubGP too, right? Go back and look at that post. I told you how you can tell if it's the injector or the plug. What valve springs went in with it? It could also be a broken spring.

 

[Kbrown]

when you make your rails do you use both gt and gtp rails to make these or do u just use gtp rails as cores...?

105 springs went in with it....

 

[bikrboy128]

comp cams 105s?
i know they were having problems with them breaking. made in mexico quality.....
not sure if they fixed that issue yet...

 

[Kbrown]

hmmmm, im going to rule that out for now (springs i bought i checked and also had some miles on them already so if they had wanted to break i do believe that they would of done that already) ..... i know what a ignition misfire feels like in my car and it seems just like what i had last time.... HOWEVER, if it turns out to be that, i will gladly bow down....

on a side note, i still havent found anyone in my area that could stop out some day .... anyone? coronas in the frig as i type! lol

 

[PANDA]

u got a 2.55 on a gen V got 3800???

 

[phat_ridegt]

2.55 is fine....


do you have a tuner? you need to simply re-enable the p0300 and then see what cylinder it is. and diagnose from there. you could spend a long time trying to just figure out which cylinder it is; let alone what the problem is.

where is the car? huntley is a good haul for me or id swing out and see if i could help

 

[phat_ridegt]

also, whats your buddies name? i think i picked up a motor from him, that house looks familar

 

[Kbrown]

sure do panda u shit head....saw your daddy finally took advantage of you the other day (see attachment)

Phat, no tuner here.... i thought of that but wasnt 100% that it would work with the cam being in... im new to the cam world so im still trying to figure some of this out.... honestly, if you would be willing to help, and had the space, i would tow the car to ur place, i have 100 mile tow radius for the GTP that i can tow it, only thing is i just dont know how long it would be there... lol

 

[PANDA]

damn got3800 so hostile

 

[EmersonHart13]

That picture is full of win.

 

[Kbrown]

damn got3800 so hostile

just getting you back for the couple years of ive got from you. lol

 

[PANDA]

How much timing you running with that 2.55?