Car stalls, why??? (video)
Feb 3, 2011, 05:24 PM
#1
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Car stalls, why??? (video)
My car stalls (or almost stalls) when i accelerate and then push the clutch pedal (check the video).
http://www.youtube.com/watch?v=Bfc_Mbbq_uM
On video every time RPM goes down i pushed the clutch pedal. Don't worry about the whining sound on the first gear. There is no CEL and car starts without any problem. I changed the BOV for stock one, cleaned MAF sensor, checked spark plugs, but nothing helped. I was thinking that it was caused by bad idle air control valve. But i don't see any teeth on it and resistance on pins is correct (32). Can it still be bad IACV??? PLEASE HELP !!!
http://www.youtube.com/watch?v=Bfc_Mbbq_uM
On video every time RPM goes down i pushed the clutch pedal. Don't worry about the whining sound on the first gear. There is no CEL and car starts without any problem. I changed the BOV for stock one, cleaned MAF sensor, checked spark plugs, but nothing helped. I was thinking that it was caused by bad idle air control valve. But i don't see any teeth on it and resistance on pins is correct (32). Can it still be bad IACV??? PLEASE HELP !!!
Feb 3, 2011, 06:53 PM
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Seems like a slow responding IAC valve. Try cleaning it out with some throttle body cleaner.
Did it just start doing this on its own? Did it start since it got cold outside? Have you messed with the base idle set screw on the throttle body?
does it stall when your parked and push the clutch in?
have you changed anything lately?? disconnect the battery and reconnect after a few minutes. it may reset itself for idle control.
Feb 3, 2011, 06:57 PM
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did you try my second suggestion??
also, check your couplings to the intercooler piping. sometimes they burst and you dont know it. it seems like it isnt reading all the MAF and other unread air is entering the system somewhere.
do you have low boost??
also, check your couplings to the intercooler piping. sometimes they burst and you dont know it. it seems like it isnt reading all the MAF and other unread air is entering the system somewhere.
do you have low boost??
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Feb 3, 2011, 07:11 PM
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did you try my second suggestion??
also, check your couplings to the intercooler piping. sometimes they burst and you dont know it. it seems like it isnt reading all the MAF and other unread air is entering the system somewhere.
do you have low boost??
also, check your couplings to the intercooler piping. sometimes they burst and you dont know it. it seems like it isnt reading all the MAF and other unread air is entering the system somewhere.
do you have low boost??
Feb 3, 2011, 07:22 PM
#10
Do you have a vent to atmosphere bov or a little filter on the valve cover nipple? Or a oil catch can with the filter on it? If so those are unmetered air leaks that could cause this also. Its more noticable with cold air since its more dense. Might run perfect in the warmer months.
Feb 3, 2011, 07:36 PM
#11
a combination of the idle air controller and the base idle set screw on the throttle body not adjusted properly. they both work hand in hand. lots of evos have this issue. lock the speed adjustment screw in evoscan (SAS actuator) and turn the screw on the throttle body counterclockwise.
also if the screw was adjusted without locking the actuator the calibration is now wrong on the idle air controller so it has the wrong step settings and is malfunctioning.
you can try adjusting the biss without locking the actuator also.. its something you'll have to keep playing with until you get it right.
also if the screw was adjusted without locking the actuator the calibration is now wrong on the idle air controller so it has the wrong step settings and is malfunctioning.
you can try adjusting the biss without locking the actuator also.. its something you'll have to keep playing with until you get it right.
Feb 3, 2011, 07:43 PM
#12
a combination of the idle air controller and the base idle set screw on the throttle body not adjusted properly. they both work hand in hand. lots of evos have this issue. lock the speed adjustment screw in evoscan (SAS actuator) and turn the screw on the throttle body counterclockwise.
also if the screw was adjusted without locking the actuator the calibration is now wrong on the idle air controller so it has the wrong step settings and is malfunctioning.
you can try adjusting the biss without locking the actuator also.. its something you'll have to keep playing with until you get it right.
also if the screw was adjusted without locking the actuator the calibration is now wrong on the idle air controller so it has the wrong step settings and is malfunctioning.
you can try adjusting the biss without locking the actuator also.. its something you'll have to keep playing with until you get it right.
Feb 3, 2011, 07:52 PM
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on the BOV, are the lines hooked up correctly??
Do you have a vent to atmosphere bov or a little filter on the valve cover nipple? Or a oil catch can with the filter on it? If so those are unmetered air leaks that could cause this also. Its more noticable with cold air since its more dense. Might run perfect in the warmer months.
a combination of the idle air controller and the base idle set screw on the throttle body not adjusted properly. they both work hand in hand. lots of evos have this issue. lock the speed adjustment screw in evoscan (SAS actuator) and turn the screw on the throttle body counterclockwise.
also if the screw was adjusted without locking the actuator the calibration is now wrong on the idle air controller so it has the wrong step settings and is malfunctioning.
you can try adjusting the biss without locking the actuator also.. its something you'll have to keep playing with until you get it right.
also if the screw was adjusted without locking the actuator the calibration is now wrong on the idle air controller so it has the wrong step settings and is malfunctioning.
you can try adjusting the biss without locking the actuator also.. its something you'll have to keep playing with until you get it right.
Also at the beginning it was doing it only sometimes and only on the first gear. And slowly it began being like on the video. Also as you can see after jumping down the needle goes to correct idle RPM.
Last edited by dvd_mi; Feb 3, 2011 at 08:12 PM.
Feb 3, 2011, 07:55 PM
#15
yes they are
No VTA BOV, no little filter, no Oil Catch Can. My current setup was working fine for 3 years until 2 months ago. Last winter i Did not have those problems.
Everything happened by itself. I did not play with anything. So why do I have play with the screw. Could the screw move by itself???
Also at the beginning it was doing it only sometimes and only on the first gear. And slowly it began being like on the video.
No VTA BOV, no little filter, no Oil Catch Can. My current setup was working fine for 3 years until 2 months ago. Last winter i Did not have those problems.
Everything happened by itself. I did not play with anything. So why do I have play with the screw. Could the screw move by itself???
Also at the beginning it was doing it only sometimes and only on the first gear. And slowly it began being like on the video.
just lock the actuator and open up the screw more see if it catches itself.
unhook your idle air controller and see what it does.