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View Full Version : Need some advice guys...my car is giving me shit


cpjay2003
08-04-2017, 11:25 PM
So I was coming home the other night when I got a little frisky and punched it in 2nd, and what-not, but I threw an overboost code
p0234 @ a 23 psi spike, how..I dunno, but that ain't the problem at hand.

I thought everything was cool but the car is acting up bad, the check engine light is staying on and the car has an irregular idle, I can live with that.

The kicker is this, I will be driving when all of a sudden the car will just start gaining throttle without me pushing the gas, I'll even throw it in neutral, and try and coast to a stop but it will stay up (but mostly gain) to about 3000 rpm's, and stay there for about 6-8 seconds, then it dies down.

At first I thought it was bad gas in the car, then spark plugs crossed my mind, then I was thinking it was the tb...I really don't know what the hell is going on here...so your opinions and suggestions are needed.

Thanks in advance,
Jay T.

lunchbox660
08-05-2017, 01:13 PM
when i installed a larger TB i had the exact same problems. i put the stocker back on and the problem immediately went away. go figure.

dommo_g
08-06-2017, 12:30 AM
check for vacuum leaks?

blackbird
08-06-2017, 06:43 AM
An overboost followed by high idle and crappy running would lead me to think you might have popped off a vacuum line somewhere. That or the high idle problem is common when the TPS wiring is damaged.

srtowner
08-06-2017, 11:37 AM
What ^ him said. Pretty much word for word what I was going to post.

newhaircut
08-06-2017, 05:10 PM
I vote TPS problem as well.

cpjay2003
08-06-2017, 07:17 PM
Thanks for the help guys, it was the tps going bad...but the car is a 2017.5...I guess I didn't expect it to go bad already but it was.
I pulled one of the fuses (I forget the number) and the check engine light is now off...I still need to check for boost/vacuum leaks though

dommo_g
08-06-2017, 10:42 PM
Wow....I had a good guess. Not because that's what your problem was, but because Eric also suggested it. I is smartz.

cpjay2003
08-07-2017, 07:15 AM
Wow....I had a good guess. Not because that's what your problem was, but because Eric also suggested it. I is smartz.

brilliant!!!

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