Cars tuned but still shuts off
#1
Cars tuned but still shuts off
I took my car to where I had it tuned and they cant figure it out. When im driving and about to reach a stop, the car shuts down if i press in the clutch while the RPMs are about 1000. If i press on the clutch after im below 1000 it stays on. Its annoying and almost got me into a few accidents. (Car shuts off so power steering goes off too) Any ideas of what i could be?
#4
how is the afr on idle.. maybe a smoother fuel map on transition between idle and acceleration will help that.. huge difference in fuel from one cel to another can cause surging that eventually would lead to stalling.. but then there are other stuff that could lead to this
#6
Originally Posted by weezyfbayba
we checked and there is no boost leaks but his afr's are in the 14.7-15.6 ace you got a good map for the fic you could send me? to try it out
#9
Check your electric throttle plate and make sure it is not sticking from the boost pressure and if there is an air bypass valve for idle control. WHat happens if you tap the gas as you put the clutch in - will it stall if you blip the throttle? Sounds like the injectors are staying in fuel cutoff as you decelerate.
#10
Ok so how do i check all of the above? If the throttle plate is sticking how do i check it and fix it? Great feedback btw. The car does not turn off if i give it gas as im slowing down and have the clutch pressed. My idle is very rough as well. Sometimes it still shuts off at idle, even when i wait for it to get under 1000 rpm. Usually, when i lift my hood it stablizes. Its very odd.
#12
At first i though it might be a vacuum leak or maybe my bov wasnt recirulating right but i had it checked and everything is fine!! I am running stage 2 cams though and my head is pnp so i dont know if that might have anything to do with it.
#14
so your bov is venting to air correct?.....are you running a blow through maf setup or is your maf still on the intake pipe?.....if your maf is not blow thru and you have a atmospheric bov then you will stall
#15
Originally Posted by Jan06xB
Check your electric throttle plate and make sure it is not sticking from the boost pressure and if there is an air bypass valve for idle control. WHat happens if you tap the gas as you put the clutch in - will it stall if you blip the throttle? Sounds like the injectors are staying in fuel cutoff as you decelerate.
#16
Originally Posted by ToyoCel
Ok so how do i check all of the above? If the throttle plate is sticking how do i check it and fix it? Great feedback btw. The car does not turn off if i give it gas as im slowing down and have the clutch pressed. My idle is very rough as well. Sometimes it still shuts off at idle, even when i wait for it to get under 1000 rpm. Usually, when i lift my hood it stablizes. Its very odd.
#19
Originally Posted by ToyoCel
Yeah, your right. They do jump at idle sometimes. Im going back to the tune shop tomorrow to get it checked out. What should i tell him to look for?