4piknup
master of none
In the fiav next to isc. Its like a choke, lets in additional air when engine is cold.
Aircon stalls the car
- Thread starter GSR94T
- Start date
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runuts
Well-Known Member
If the vehicle speed signal is cut from the ECU, the car will stall at idle with aircon on. Common on early evos when people remove the speed cut by just cutting/removing the signal wire from the speedo
clone
self employed bum
nope turns out the aircon request signal isnt working, we tried connecting it in the aux 1 port but still no good. think it might be the haltech for some reason, wondering or not to send away to haltech to test. not to sure how much this will cost
khubner1
Moderator
Have you tapped the right wire from the factory loom?
Have you probed the factory idle up request with a multimeter to ejsure you are getting a dignal there to the ecu?
Have you probed the factory idle up request with a multimeter to ejsure you are getting a dignal there to the ecu?
4piknup
master of none
Is a dignal a digital signal?
evo-gsr
Well-Known Member
Its a slang word for a digit in the anus....
Is the ecu set to th correct input type?
I can't recall if it is a +12v or pull to gnd signal that the stock switch provides.
From memory it is +12v.
If this is the case, to test the switch or ecu you can supply 12v to that aux input and see if the haltec can see it. Alternatively use another haltec input option.
I can't recall if it is a +12v or pull to gnd signal that the stock switch provides.
From memory it is +12v.
If this is the case, to test the switch or ecu you can supply 12v to that aux input and see if the haltec can see it. Alternatively use another haltec input option.
khubner1
Moderator
just signal when i bump the d instead of s when typing on my phone while workingjack be nimble said:
4piknup
master of none
I know. Im being obtuse.
evo-gsr
Well-Known Member
you mean obese ?^
4piknup
master of none
Hater^
The girls i pay love my fat.
The girls i pay love my fat.
I too have this issue but it doesnt stall. The rpms just drop and dont come back up. I've got a stock GSR ecu, I've replaced the throttle body, fiav and the isc so I highly doubt that these three things are faulty.
My very limited mechanical and electrical knowledge/experience assumes something has to force the throttle body to open up a little to compensate the revs when the AC is on. Only thing I can think of is the ISC - that one of the pins need to receive current when the AC is on but that wire thats suppose to be sending that current isnt actually doing so and therefore is an electrical issue...or am I just WAY off the mark here?
Is there anything else I should be looking at?
My very limited mechanical and electrical knowledge/experience assumes something has to force the throttle body to open up a little to compensate the revs when the AC is on. Only thing I can think of is the ISC - that one of the pins need to receive current when the AC is on but that wire thats suppose to be sending that current isnt actually doing so and therefore is an electrical issue...or am I just WAY off the mark here?
Is there anything else I should be looking at?
khubner1
Moderator
When you replaced the isc did you test the replacement to check it was good? Its a common failure for one coil to be bad
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