idle surge
idle surge now my car has an idle surge problem. hopefully when i install this new tb it will go away. any ideas.? on what it could be. car has new plugs, seafoam done 2 weeks ago, cleaned tb, new air filter, cleaned maf. pcv valve is new.
Idle air control valve, or maybe your mafs damage when you cleaned it.
get some maf cleaner and do that just in case. Also unhook your battery and hook it back up and that will help your car relearn it's idle. It might take a couple of days to relearn. So i have heard.
Did this just start after your converter was installed?
Anytime you install a aftermarket converter you want to have your tuner bump the idle from 550 to about 750RPM and play with the idle airflow settings... The smaller diameter converter will cause to car to surge due to less rotating resistance and the stock tune cannot compensate. My tuner did it for free when I had my converter installed as well as adjust the shift points so your not tagging the limiter on the 1-2 and 2-3 shift...
https://ls1tech.com/forums/showthrea...ght=surge+idle
Anytime you install a aftermarket converter you want to have your tuner bump the idle from 550 to about 750RPM and play with the idle airflow settings... The smaller diameter converter will cause to car to surge due to less rotating resistance and the stock tune cannot compensate. My tuner did it for free when I had my converter installed as well as adjust the shift points so your not tagging the limiter on the 1-2 and 2-3 shift...
https://ls1tech.com/forums/showthrea...ght=surge+idle
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If it's not a converter tune issue I'd look for some way unmetered air is entering the intake path.... loose egr oring, bellows not all the way on, throttle body not fastened, etc
Whatever you used to clean the MAF might be messing with the car as well
Whatever you used to clean the MAF might be messing with the car as well
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If it happened after your TC install, then you'll need to get it tuned. I went through the same bullshit for months, tried everything already suggested, and a quick tune by Ryne at CMS fixed it.
he tuned it when the verter was installed and said he adjusted the idle. maybe ill go back over there and have him check the tune out. he also did the shift points and line pressure. the car feels awesome its just when you come to a stop it wants to die every now and then,
havent changed the tb only cleaned it. with seafoam deep creep. havent put the ported factory back on yet. hopefully that will fix it. its shut off on me twice now coming to a stop. really annoying , and embarrassing.