Fouled plug?

[crrider80]

Hi guys. I noticed my car running wierd and i think it is because i fouled out a plug. When i drive at 2/3rds throttle or more or try to accelerate the car picks up really slow. It doesn't have a misfire. The car kinda stumbles and shakes a little. This happens whether in boost or not. Mabye the spark is being blown out? please help.
-Steve

UPDATE on last post:

"OK the code 51 is gone. car runs MUCH better.however, when im around 4k rpm and WOT the car doesnt seem like it wants to pull and startes vibrating. What do you think this is?
-Steve"

 

[IwantMKIII]

easy solution. Change'em and see what happens. Take notice to the bunny trail marks left on the old injectors.

 

[crrider80]

e Take notice to the bunny trail marks left on the old injectors.

What does this mean?
-Steve

 

[IwantMKIII]

ie, what color are they mostly? it will tell you if you're running too lean/rich in a cylander, too hot, leaking oil low compression, bad rings etc

 

[gilberjj]

plugs are inexpensive. change your wires too if they are a little old

 

[crrider80]

I just noticed that the studdering isnt rpm dependent. its when i have the throttle open from 10 vac foward.
-Steve

 

[NeatOman]

Any codes? Check you CPS.

 

[antman]

Codes?

 

[IwantMKIII]

I just noticed that the studdering isnt rpm dependent. its when i have the throttle open from 10 vac foward.
-Steve

Check VSV's


Also check FPR

 

[crrider80]

code 51
-Steve

 

[crrider80]

The car seems to run fine with the TPS unplugged except for a high idle (1200rpm). Is this ok for a temporary fix until i get my new TPS installed? by the way would an n/a TPS work?
-Steve

 

[crrider80]

Update! Installed new TPS. Hesitation was gone for a couple of pulls. A burnout later and a high rpm run, hesitation is BACK! WTF!!!.
-Steve

 

[crrider80]

OK the code 51 is gone. car runs MUCH better.however, when im around 4k rpm and WOT the car doesnt seem like it wants to pull and startes vibrating. What do you think this is?
-Steve

 

[JustAnotherVictim]

Did you set the TPS properly?

 

[crrider80]

Did you set the TPS properly?

yupp
throttle body bump stop
.90 - continuity
.50 - no continuity

 

[JustAnotherVictim]

Check your timing and codes.

 

[crrider80]

Check your timing and codes.

no codes, i will check my timing