MellowVR4
Well-known member
Hey all, just picked this Galant GSX a month ago for 800. Drove it to a friends house and fixing little minor stuff to it. I cant seem to figuer out this idle problem that its having. it seems like a idle surge but not quite the normal idle surge that we're all familiar with. Maybe it was a iac? i changed that with two different ones that i had laying around, nothing changed, I disconnect the iac while the car was running, nothing changed. I removed my ecu and all the caps are fine no leaking goin on anywhere, BUT im pretty sure its an aftermarket ecu or replaced because its not the brass colored case, its grey? dont know if this ecu is even meant for this year? not sure. The biss screw is all the way in but still even when the car is warmed up it still does the same thing at the same RPM which is at like 1800. When i bought the car i was aware of this idle problem before hand, when i test drove the car and came back with it the problem went away, idle was normal and steady. seems to be intermitent but im not sure what could be causing this. I was thinking maybe a TPS,MAF, or TB. Anyone have any ideas on what it could be? Here are some pics of the ride.
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