Got my lsj back from tuner after engine build. Car idle sometimes doesn't sometimes. At idle car is at 12-15 vac and 22% throttle. When I put my foot slightly on the gas it goes to 18-22 vac and throttle position goes to 18%.
Swapped tb to ls4, nothing. Went to new stock tb, nothing. Car is now on tune for stock tb. Still won't idle. 1200 rpm is what it's set for.
Any ideas?
Also I'm very new to tuning. It was done by a pro.
But I'm learning.
So it didn't run right when you picked it up from your tuner? If that is the case, why does your tuner not fix it for you?
Do you have any check engine light codes?
He said he couldn't fix it.
No cels
sounds like hes not a pro then
2000 Ford Mustang - Top Sportsman
Alright, so does it start up and run? Just dies when you let off the throttle to let it idle?
Go ahead and post up your tune file and a log of the car if it does start up and run by throttling it.
And include a list of modifications.
Probably because how the throttle is setup. If the car has a bad vacuum leak it will cause a lot of problems.
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