This could be an airleak after the airflow meter, any expose dragged in here isn t seen by the ECU and thus not compensated for and can thin the engine out and can as a consequence permit the engine to rev stirring in the same way as not desired causing rough running. As its a mechanical malformation it tends not to twist upon the irregularity lighthearted and you can sometimes listen a hissing noise behind the engine running.
I did re-check them tho. The master tech did extensive tests on the freshen flow meter and said it was good. taking into account I unplug it and manage the motor, the car runs gruff and at 850ish. I can without help guess that my supplementary rebuilt ecu has an issue, or the tps needs to be re-adjusted, or anyhow my maf has died in the midst of every this. I don’t think the tps has that much run in the every other of rpm though? I think it unaccompanied adjusts it on the order of 1k..
later than I start the car, the engine surges occurring between 1200 and 2000 rpm assist and forth. I tainted the IAC and the TPS subsequently no tweak in symptoms. I have noticed that several Lexus SC’s have this similar issue. Prior to this I would have to acclimatize the idle readiness screw to subjugate the rpm and it would support for a while. Now, the engine is constantly surging to the lessening where I cannot drive it for apprehension of broken to the drive train. Any experienced solution?
Image Schematics for honda accord wiring diagram 1999
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