Engine imediately revs at 3000rpm at cold start
10-08-11, 06:00 PM
#1
Junior Member
Thread Starter
Engine imediately revs at 3000rpm at cold start
Hi again, guys.
after I solved my TPS problem, now I have another one, that is when the car is completely cold, it emidiately revs at 3000rpms when I start it and then after a few seconds, it drops t 1200rpms and when it's warm, lows to 700rpm. I also notice a certain turbulence that shakes the car a little bit at 1200rpm and I also hear some "clicking" in the engine bay, like a switch turning on or off... perhaps from a solenoid or a valve. I don't know if these clicks are usual in these cars, maybe some one can explain it to me.
Thanks
after I solved my TPS problem, now I have another one, that is when the car is completely cold, it emidiately revs at 3000rpms when I start it and then after a few seconds, it drops t 1200rpms and when it's warm, lows to 700rpm. I also notice a certain turbulence that shakes the car a little bit at 1200rpm and I also hear some "clicking" in the engine bay, like a switch turning on or off... perhaps from a solenoid or a valve. I don't know if these clicks are usual in these cars, maybe some one can explain it to me.
Thanks
10-09-11, 09:56 AM
#3
It's called the "Accelerated Warm-up System" or AWS. As mentioned, start with the clutch depressed but in gear, or simply blip the throttle to cancel it.
Having the engine immediately rev like on cold start isn't good but it's hard to remove AWS on the stock ECU. Removing the selenoid will cause a Check Engine Light.
Having the engine immediately rev like on cold start isn't good but it's hard to remove AWS on the stock ECU. Removing the selenoid will cause a Check Engine Light.
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