MAF question
06-18-2007, 03:32 PM
#13
6th Gear Member
Join Date: Jun 2006
Location: Maine
Posts: 5,693
RE: MAF question
06-18-2007, 04:22 PM
#14
I ♥ Acer
Join Date: Apr 2007
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Posts: 155
RE: MAF question
ORIGINAL: redemption
my sister droped my maf right, and and the plastic craked who knows if its broken i was pissed i put it in and my car is idleing weird ,when i turn the idle positioner screwi can turn it excesivly with no fluctuation in the revs. Now when i open and close the throttle by hand it revs normal etc just when idleing i cant get it between the normal 700 rpms it either wants to go high or really low, im guesiing its the maf but you guys are the experts so any solutions?
my sister droped my maf right, and and the plastic craked who knows if its broken i was pissed i put it in and my car is idleing weird ,when i turn the idle positioner screwi can turn it excesivly with no fluctuation in the revs. Now when i open and close the throttle by hand it revs normal etc just when idleing i cant get it between the normal 700 rpms it either wants to go high or really low, im guesiing its the maf but you guys are the experts so any solutions?
When you move the idle screw, without disconnecting the IAC first, then the ecu just compensates with the IAC. You won't see an idle change until the IAC is saturated.
Set the idle screw by taking the screw all the way out, then slowly turn the screw back in until it just makes contact with the TB. At this point turn the idle screw about 1/4 to 1/2 of a turn.
Verify that the tps is still set to between .7 and 1.1v.
Setting to a specific value (like .998v) is useless, as the ecu doesn't look at the absolute value of the tps signal.
Pull your codes and see what the ecu thinks is going on...
jason
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