Evo. 8 GSR fluctuating idle and cuts off
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Evo. 8 GSR fluctuating idle and cuts off
I tried doing a quick search, but most of the results led me to the X forums. I've got an '03 GSR with around 93k on it and not a problem to date until I installed my Optima Red top yesterday. I highly doubt the battery can cause a problem but it's worrying me. Basically, if I'm coasting and coming to a red light, if I clutch in and place the car in neutral the idle drops severely... down to about 550 and cuts off. This doesn't occur if I have my clutch in and the car in any gear. Don't know what's causing it but it just started happening this morning after I put in the Optima. Is it possible I knocked a hose lose somewhere? Car has some mild mods, but it is not cammed or anything like that and I'm still running the stock turbo and injectors etc. Any ideas? Thanks in advance.
EDIT: I forgot to mention the car seems to regularly idle too low, somewhere around 680-800. It tends to move around in that range.
EDIT: I forgot to mention the car seems to regularly idle too low, somewhere around 680-800. It tends to move around in that range.
Last edited by distortion; Feb 7, 2012 at 11:56 AM. Reason: Added info
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I've only had the car since about 88k but I changed the timing belt almost immediately after purchase. What entails the 60k service? (No Mitsu. dealers in my area)
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My '03 started dying when I put the clutch in and it turned out to be the ISC motor. The '03s apparently had a crappy design with plastic figers that they upgraded from '04 on. New ISC and the idle's rock solid again. Maybe you jiggled the ISC connector with the battery install? The ISC is on the underside of the throttle body, in the same neighborhood as the battery.
BTW, the part was ridiculously expensive, like $350 or so. The ISC motor failed on a Thursday and I couldn't take the stalling in stop and go traffic so I just had the dealer replace the motor. I decided that getting ripped off was worth the convenience of having a car that idled in bumper-to-bumper traffic!
Good luck!
-Franc
BTW, the part was ridiculously expensive, like $350 or so. The ISC motor failed on a Thursday and I couldn't take the stalling in stop and go traffic so I just had the dealer replace the motor. I decided that getting ripped off was worth the convenience of having a car that idled in bumper-to-bumper traffic!
Good luck!
-Franc
#9
Hey Franc,
how you find out it is the ISC problem?
I just dont want to waste $350 for nothing.
Or do you know any problems will cause this issues?
It just happened one day when i was driving.
Also most of time it happen when it is raining.
Thanks,
Chris
how you find out it is the ISC problem?
I just dont want to waste $350 for nothing.
Or do you know any problems will cause this issues?
It just happened one day when i was driving.
Also most of time it happen when it is raining.
Thanks,
Chris
My '03 started dying when I put the clutch in and it turned out to be the ISC motor. The '03s apparently had a crappy design with plastic figers that they upgraded from '04 on. New ISC and the idle's rock solid again. Maybe you jiggled the ISC connector with the battery install? The ISC is on the underside of the throttle body, in the same neighborhood as the battery.
BTW, the part was ridiculously expensive, like $350 or so. The ISC motor failed on a Thursday and I couldn't take the stalling in stop and go traffic so I just had the dealer replace the motor. I decided that getting ripped off was worth the convenience of having a car that idled in bumper-to-bumper traffic!
Good luck!
-Franc
BTW, the part was ridiculously expensive, like $350 or so. The ISC motor failed on a Thursday and I couldn't take the stalling in stop and go traffic so I just had the dealer replace the motor. I decided that getting ripped off was worth the convenience of having a car that idled in bumper-to-bumper traffic!
Good luck!
-Franc
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