I Need Some Quick Help...

[fast_driving2007]

everytime when i go WOT when my car hits like 3300rpms it starts to like lag or pull back.....does anybody know wat can be the problem? can it be the wastegate...its all stock just the bov and intake and motormounts....

[Turbodog97]

Probaby either boost leak, timing being pulled, bad plugs or wires...etc.

[fast_driving2007]

its not a boost leak for sure because i get full boost....

[Turbodog97]

Just because you get full boost doesn't mean you don't have a leak.

[fast_driving2007]

but the car pulls back like crazy.....can da spark plugs really make this happen????....

[ponchonutty]

I'd take a look at your plugs and see what color they are. Also, if you have more than about 30k miles on them, replace them. If you are using anything lower than 91octane, I'm sure the knock sensor is comming into play here.

[fast_driving2007]

i think its the spark plugs..because when i bought the car it had a stage 4 turbo but they had to replace everything because of the warranty.....and i use 91 gas...

[Turbodog97]

An agp s4 kit? And they took it all off? Also, for fyi...plugs should be changed around 10k not 30(be sure to check your gapping every oil change or so).

[fast_driving2007]

i dnt know if it was agp....but the turbo said garret on it or something like dat.... the car has 28,000 miles.....i dnt know if they ever changed them...but tomorrow i will be replacing them.. whats a good brand that i can put of plugs????

[ponchonutty]

10k if you are running anything above a s1 kit. Otherwise 15-20k is fine.

[fast_driving2007]

I Replaced Them Today But Its Still The Same...it Got A Lil Better..but It Still Does It....i Will Replace The Plugs Tomorrow....should I Buy The Coil Pack Too?????

[fast_driving2007]

i just changed the plug wires also.....than i drove it again to see if it was good but nope still the same.....than i heard a pop in the engine.....can it be that the timing aint right????

[ponchonutty]

Do this, find your throttle body which is down low between the engine and radiator. Find the TPS harness which plugs into it. It should have 3 wires if I can remember right. Anyhoo, when you find it, start the car. With it idling, wiggle that harness. If the engine RPM's change even slightly you have the common TPS harness failure problem. There's a TSB on it from Dodge.

[fast_driving2007]

ima take it to the dealer tomorrow...ima see what they tell me...

[Turbodog97]

Originally Posted by ponchonutty

Do this, find your throttle body which is down low between the engine and radiator. Find the TPS harness which plugs into it. It should have 3 wires if I can remember right. Anyhoo, when you find it, start the car. With it idling, wiggle that harness. If the engine RPM's change even slightly you have the common TPS harness failure problem. There's a TSB on it from Dodge.

Know though, that doesn't work in every situation. Mine had the tps problem and no matter what you would do with the wires nothing would change the rpms.
Have you been gapping the plugs correctly when you have been changing them? What are you gapped at? Should be around .035 or less since I'm uncertain of your mods.