STALLING WHEN YOU TURN OFF INTERIOR HEAT!!
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- Second Gear
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STALLING WHEN YOU TURN OFF INTERIOR HEAT!!
ok so ive been messin around with this 92 legacy wagon for a few hours and can't figure this out.
so you have the heat on, and the car idling, press the off button and it stalls.
i changed the ALT, as well as the TCU (had one a few years back that would stall because the TCU was locking the TQ converter at idle)
any ideas?
so you have the heat on, and the car idling, press the off button and it stalls.
i changed the ALT, as well as the TCU (had one a few years back that would stall because the TCU was locking the TQ converter at idle)
any ideas?
1999 Impreza Outback Sport w/ MY02 WRX complete swap
1986 GL wagon
EJ'ed and Lifted
1986 GL wagon
EJ'ed and Lifted
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- Second Gear
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bad IAC when you change voltage loads, it does adjust idle slightly and I guess your idle control valve just dies at a certain duty cycle. Spray some intake cleaner or pour some seafoam down the IAC tube.
1993 Subaru Legacy L AWD Wagon R.I.P
1994 Subaru Legacy SS R.I.P :(
2004 Nissan Titan LE 4X4
2007 Subaru Legacy GT :)
1994 Subaru Legacy SS R.I.P :(
2004 Nissan Titan LE 4X4
2007 Subaru Legacy GT :)
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It only happens at idle? Have you tried turning on and off other electrical loads, like the lights? What if the heat isn't on prior to idle?
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
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i thought about that but if it was sticking it wouldn't idle up properly when cold.ericem wrote:bad IAC when you change voltage loads, it does adjust idle slightly and I guess your idle control valve just dies at a certain duty cycle. Spray some intake cleaner or pour some seafoam down the IAC tube.
1999 Impreza Outback Sport w/ MY02 WRX complete swap
1986 GL wagon
EJ'ed and Lifted
1986 GL wagon
EJ'ed and Lifted
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- Second Gear
- Posts: 492
- Joined: Fri Jul 23, 2004 7:32 am
- Location: Seattle, Washington
i have the lights on and off, as well as the radio on/off and tried other things like the ac on/off.evolutionmovement wrote:It only happens at idle? Have you tried turning on and off other electrical loads, like the lights? What if the heat isn't on prior to idle?
whenever i hit the buttons it drops rpms no matter what button i hit on the climate control. but it only stalls when i hit the off button.
1999 Impreza Outback Sport w/ MY02 WRX complete swap
1986 GL wagon
EJ'ed and Lifted
1986 GL wagon
EJ'ed and Lifted
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- Knowledgeable
- Posts: 9809
- Joined: Mon Jun 16, 2003 11:20 pm
- Location: Beverly, MA
Maybe it's an "engine off" button.
I'd like to say it would have something to do with a bad temp sensor, but can't seem to figure how that would stall it. I don't know how the wiring would even interact with the ignition/fuel. F'n weird. Has the wiring been messed with at all? PO adding some madtyte system or something?
I'd like to say it would have something to do with a bad temp sensor, but can't seem to figure how that would stall it. I don't know how the wiring would even interact with the ignition/fuel. F'n weird. Has the wiring been messed with at all? PO adding some madtyte system or something?
Midnight in a Perfect World on Amazon or order anywhere. The first book in a quartet chronicling the rise of a man from angry criminal to philanthropist. Midnight... is a distopic noirish novel featuring 'Duchess', a modified 1990 Subaru Legacy wagon.
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- Second Gear
- Posts: 492
- Joined: Fri Jul 23, 2004 7:32 am
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does it do it with every button on the HVAC or only specific ones?
Are there any other things that are strange about the hvac system or heater?
What is the running voltage?
just trying to ask questions that may help to narrow it down.
It may have something to do with the AC idle up. since you have no ac in place and the hvac functions that use the ac tell it to idle up, but it doesnt have the ac load on it, then you tell the ecu to get rid of the idle up by turning off the hvac unit, then it idles down to the point where it stalls.
I guess try resetting the ecu.
anyone know if there is an identifier pin for AC on the ecu that you could clip to tell it that it does not have AC?
Are there any other things that are strange about the hvac system or heater?
What is the running voltage?
just trying to ask questions that may help to narrow it down.
It may have something to do with the AC idle up. since you have no ac in place and the hvac functions that use the ac tell it to idle up, but it doesnt have the ac load on it, then you tell the ecu to get rid of the idle up by turning off the hvac unit, then it idles down to the point where it stalls.
I guess try resetting the ecu.
anyone know if there is an identifier pin for AC on the ecu that you could clip to tell it that it does not have AC?
1994 Touring Wagon: ruby mica, 5mt swapped
I was thinking along the lines of a vacuum leak when you turn it off. Aren't the flappers all vacuum controlled? Am I way off base here?
Jeff
Jeff
91 Black SS 5spd. Edm lights, wrx gauges in dash, 45 degree airbox, cryoed drilled and slotted brakes. Invidia divorced downpipe with custom stainless exhaust. To be installed, aluminum a-arms, manual belts, awic.
Extremely off base lol haha xD its electronic actuators too I believe.jefferson wrote:I was thinking along the lines of a vacuum leak when you turn it off. Aren't the flappers all vacuum controlled? Am I way off base here?
Jeff
1993 Subaru Legacy L AWD Wagon R.I.P
1994 Subaru Legacy SS R.I.P :(
2004 Nissan Titan LE 4X4
2007 Subaru Legacy GT :)
1994 Subaru Legacy SS R.I.P :(
2004 Nissan Titan LE 4X4
2007 Subaru Legacy GT :)
Yeah, the HVAC doors are electrically controlled.
Josh
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm
surrealmirage.com/subaru
1990 Legacy (AWD, 6MT, & EJ22T Swap)
2020 Outback Limted XT
If you need to get a hold of me please email me rather then pm