I am starting to lose it with this car. Need HELP please.

[blackgn231]

It ran great before the blown HG. Got it back running idles fine seems every thing is good, took it out today ran fine would come up on boost good, then gave it gas going up a bridge and it started shuttering, when you gave it gas it would almost stop. If you backed off it was ok . Then it was back to running great again did it one more time close to home.Know this has to be some thing breaking down or going bad. When it did it scan tool was reading into 800's the time it was running bad never dropped down on till it started running good again.Just not sure were to start here, have a lot running through my head, bad fuel pump, fuel regulator, coil. Anyone ever had some thing like this happen to them?

 

[Turbotre]

Did you get all of your ground wires bolted back in place?

 

[blackgn231]

Yes did have a hard time with the ones behind the hear but got them make up could this cause my problem?

 

[big reazon]

ohm your coils report back with results

 

[Turbotre]

Yes did have a hard time with the ones behind the hear but got them make up could this cause my problem?

No problem,as long as they are all intact,and hooked up securely.
It sounds more like a cracked plug,or damaged plug wire.

 

[blackgn231]

But why would it come and go like that? One min its running great then bad then great again?

 

[gnfast87]

I would also look at replacing the fuel filter. My first Gn did this same thing. Cut the filter in half and it was loaded with fine pieces of rust.

 

[blackgn231]

Did that already just to be sure.

 

[TurboTnZ06]

Sounds electrical for sure. Time to look at every single sensor on the scanmaster to see what's happening. It could be anything, like a dead spot on the TPS sensor, or maybe a MAF on its way out. This is when it helps to have a known good spare of everything to identify what's not wrong.

 

[blackgn231]

Like I said about O2 it was reading up in the 800 area the hold to time this was going on also have a high BL problem goes to 133 TO 140 but would not think that would be causing this.

 

[blackgn231]

will check the grounds and have one more coil, will look at a few things just not sure about how it comes and goes.

 

[Amelio]

when you replaced your HG did you touch anything else?

 

[blackgn231]

Pulled the doghouse off to clean the intake area, really nothing else that ,I know of.

 

[blackgn231]

Pulled the plugs 3 look like they have a tint of red on the ends like the eletro area is red.

 

[blackgn231]

not bad though will replace the plugs since I did not get new ones these were new before blown HG.

 

[Chuck Leeper]

Using any octane booster???

 

[blackgn231]

Oh darn forgot I did add some thought maybe the gas was bad.

 

[blackgn231]

checked the ground wires on the back of the head they are tight .

 

[Pronto]

Know someone with a known good MAF you can try out? bTW, why did the hg blow out in the first place? Better fix what caused that to happen too.

 

[blackgn231]

Not sure just yet still trying to get it running good first so,I can drive it.