Hello, I have repaired beyond 30000 vehicles in my career and I obsession to question you questions since I am not there in person to hoard facts, data, or to test your vehicle. I may ask you to fake examination in my stead. If examination is needed and you would rather not work testing, I can meet the expense of my best advice, Fuel pressure?
I did re-check them tho. The master tech did extensive tests on the air flow meter and said it was good. as soon as I unplug it and manage the motor, the car runs harsh and at 850ish. I can unaccompanied guess that my other rebuilt ecu has an issue, or the tps needs to be re-adjusted, or somehow my maf has died in the midst of every this. I don't think the tps has that much direct in the different of rpm though? I think it forlorn adjusts it something like 1k..
behind I begin the car, the engine surges in the works in the middle of 1200 and 2000 rpm help and forth. I untouched the IAC and the TPS with no fiddle with in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to adapt the idle eagerness screw to degrade the rpm and it would support for a while. Now, the engine is every time surging to the reduction where I cannot drive it for anxiety of damage to the steer train. Any experienced solution?