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Aircon stalls the car

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33 replies to this topic

#21
jack be nimble

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In the fiav next to isc. Its like a choke, lets in additional air when engine is cold.
4g93t jumbuck conversion. PRANGED 18/3/12, CHECK MY MEMBER RIDES Page 11. no serious human injuries.
ON THE ENGINE STAND. g4cs 2.4l + Gt35r. PLUS: auto conversion + Awd coming.
thanks for parts and help: BMGTZ, EVOCPE, cwolf, Benozi, Jamo-GSR, 1JUM2NV, RXVII..much appreciated, cheers guys.
Aerodynamics are for people who can't build engines. —Enzo Ferrari
REMEMBER: you cant polish a turd, but you can roll it in glitter.

#22
bazeng

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Yes. Wax is purely for cold start.

#23
runuts

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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
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#24
clone

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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



#25
leadfoot

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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?

yes it's me KHUBNER


#26
jack be nimble

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Is a dignal a digital signal?
4g93t jumbuck conversion. PRANGED 18/3/12, CHECK MY MEMBER RIDES Page 11. no serious human injuries.
ON THE ENGINE STAND. g4cs 2.4l + Gt35r. PLUS: auto conversion + Awd coming.
thanks for parts and help: BMGTZ, EVOCPE, cwolf, Benozi, Jamo-GSR, 1JUM2NV, RXVII..much appreciated, cheers guys.
Aerodynamics are for people who can't build engines. —Enzo Ferrari
REMEMBER: you cant polish a turd, but you can roll it in glitter.

#27
evo-gsr

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Its a slang word for a digit in the anus....
[qoute name="BMGTZ" post="331212" timestamp="1467451744"]I don't know anything ...
Trust in the master of taxis.... He will set you straight[/quote]

#28
bazeng

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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.

#29
leadfoot

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Is a dignal a digital signal?

just signal when i bump the d instead of s when typing on my phone while working


yes it's me KHUBNER


#30
jack be nimble

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I know. Im being obtuse.
4g93t jumbuck conversion. PRANGED 18/3/12, CHECK MY MEMBER RIDES Page 11. no serious human injuries.
ON THE ENGINE STAND. g4cs 2.4l + Gt35r. PLUS: auto conversion + Awd coming.
thanks for parts and help: BMGTZ, EVOCPE, cwolf, Benozi, Jamo-GSR, 1JUM2NV, RXVII..much appreciated, cheers guys.
Aerodynamics are for people who can't build engines. —Enzo Ferrari
REMEMBER: you cant polish a turd, but you can roll it in glitter.

#31
evo-gsr

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you mean obese ?^


[qoute name="BMGTZ" post="331212" timestamp="1467451744"]I don't know anything ...
Trust in the master of taxis.... He will set you straight[/quote]

#32
jack be nimble

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Hater^
The girls i pay love my fat.
4g93t jumbuck conversion. PRANGED 18/3/12, CHECK MY MEMBER RIDES Page 11. no serious human injuries.
ON THE ENGINE STAND. g4cs 2.4l + Gt35r. PLUS: auto conversion + Awd coming.
thanks for parts and help: BMGTZ, EVOCPE, cwolf, Benozi, Jamo-GSR, 1JUM2NV, RXVII..much appreciated, cheers guys.
Aerodynamics are for people who can't build engines. —Enzo Ferrari
REMEMBER: you cant polish a turd, but you can roll it in glitter.

#33
Lemsta2

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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?


Lem

1994 Lancer GSR

#34
leadfoot

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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

yes it's me KHUBNER



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