stuttering engine...can't accelerate

[jgm188]

My car has been doing this for a while now but I'm just not sure what its from. Whenever I got to accelrate hard...like pull out hard or pass someone....my engine stutters and i don't have anymore power. It just won't accellerate. To stop the stuttering I have to leave off the gas and throttle up easy. Does anyone know what this could be? I have several suspissions of what it might be be I'm not sure. I was thiking either its not getting enough fuel or its exhaust related...I do have a 3''cat back with a hiflo cat..however the O2 sensor says the cat isn't efficient. I dunno. Help!

 

[gsx_tuner]

Sounds like a leak on the intake. I bet you are getting unconfirmed air to the motor. Check your hose to the the throttle body and make sure it is hella tight. You might also want to see if it is leaking around where the intake meets the head. Do you have a CEL on?

 

[IHeartTurbo]

Could also be plugs/wires related. I know my car stumbled like that when I got on the gas before I changed them.

 

[SwiftKidGSX]

Originally posted by IHeartTurbo
Could also be plugs/wires related. I know my car stumbled like that when I got on the gas before I changed them.

I agree, I was getting the same symptiums you describe due to the plugs having a to large of a gap. Weird, I dont know how they got like that but it solved my problem. Got this from RRE website, "Spark plug gap should be set at .030" for up to 16psi boost. Set at .028" for 17psi and up." Hope this helps.

Joey 99GSX

 

[jgm188]

Thanks guys....i'm gonna check that. I'll see if that fixes it.

 

[blk91tsiawd]

wow I was just gonna put up a new thread and saw this.....anyways, I was driving my car to the shop to get a oil leak check out and inspection....anyway, While I was driving there...whenever I put like 50% or more throttle and got into boost, the car would start to like sputter almost like it didn't wanna boost....My wires and plugs are new...so I dunno the shops gonna look at it but what do you guys think???

I have no CEL on also...

 

[jgm188]

Everything works great now! Thanks alot!

 

[96TSi_Chris]

Originally posted by blk91tsiawd
wow I was just gonna put up a new thread and saw this.....anyways, I was driving my car to the shop to get a oil leak check out and inspection....anyway, While I was driving there...whenever I put like 50% or more throttle and got into boost, the car would start to like sputter almost like it didn't wanna boost....My wires and plugs are new...so I dunno the shops gonna look at it but what do you guys think???

I have no CEL on also...

Check for boost leaks.

 

[Jordan]

what is the spark plug gap supposed to be for 1.8 nonturbos?