Car idling too fast
I just installed LT headers and y-pipe and now I guess the car is getting too much air. I purchased HPtuners to Tune my car but I was wondering if there was a "quick" fix to slow down the RPM's so I dont bang into Drive. Anyone have any ideas??
Thanks!
Evan
Find out why it's idling too high before you tune it.
You're creating a nightmare for yourself if you do nothing but install headers and a Y, get a high idle and use HPTuners to lower it.
There is a mechanical problem with the car, whether it's a hose off (like the brake booster hose?) or a broken temp sensor, tuning it isn't going to do ****.
Scan it with HPTuners and post the scan file, someone here will figure it out for you..
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Anyway, back on topic....
99.9% of the time, it's the EGR tube leaking on the top of the intake. Tighten it. it's something like a 21mm size.


Sorry for the length but I'm a pretty big newb when it comes to tuning...
I realize this is probably a common problem since its only full exhaust but was wondering if anyone had quick answers...
Any help is appreciated.
Evan
Find out why it's idling too high before you tune it.
You're creating a nightmare for yourself if you do nothing but install headers and a Y, get a high idle and use HPTuners to lower it.
There is a mechanical problem with the car, whether it's a hose off (like the brake booster hose?) or a broken temp sensor, tuning it isn't going to do ****.
Scan it with HPTuners and post the scan file, someone here will figure it out for you..

and fwiw, I've had similar idle issues because of exhaust leaks. The ones way down stream in the exhaust system wont mess with your tune, but the ones by the collector, close to the O2 sensor, can really throw things off. I got tired of screwing with clamps, so its welded solid now. No clamps, no leaks, no issues.
And the EGR had nothing to do with anything you posted, I didn't even read your posts. I figured out it was an EGR car cause he said it's a 98. After 2000, they took it away.
why are you trying to bust my *****? Leave me alone.
And the EGR had nothing to do with anything you posted, I didn't even read your posts. I figured out it was an EGR car cause he said it's a 98. After 2000, they took it away.
why are you trying to bust my *****? Leave me alone.
We're all here to help each other out right. Am I trying too hard?
https://ls1tech.com/forums/pcm-diagnostics-tuning/973849-quick-hp-tuners-question.html
In this one he said he stuffed a rag in the egr hole in the intake. So I guess we're all wasting our time here. Now thats bullshit.
https://ls1tech.com/forums/showthread.php?t=973849
In this one he said he stuffed a rag in the egr hole in the intake. So I guess we're all wasting our time here. Now thats bullshit.
That thread was the funniest thing i've read in ages.






