I have a 2004 ES330 taking into consideration a hestitation problem. It is good from a full stop but subsequently I go a propos turns on onto highway ramps, with I depress the accellarator (sp?) it hesitates for 2 seconds past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon considering the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights outlook on? Is the battery sufficiently charged? With or without headlights on. Relatively further battery. Mechanic s Assistant: What is the model of your 04 Lexus? ES330 Mechanic s Assistant: Are you fixing your vehicle yourself? What have you tried suitably far? I ve cleaned the MAF sensor. Checked for contacts in the intake. in the same way as I put my Turbo OBDII app on, anything seems good except that the TPS stays constant around 30%. This is a drive-by-wire model hence it has not throttle cable or normal TPS. I believe the TPS is integrated bearing in mind the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know since I border you? No, I guess that is it.
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I did re-check them tho. The master tech did extensive tests upon the let breathe flow meter and said it was good. as soon as I unplug it and run the motor, the car runs severe and at 850ish. I can deserted 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 all this. I don't think the tps has that much govern in the swing of rpm though? I think it abandoned adjusts it in the region of 1k..
next I start the car, the engine surges going on with 1200 and 2000 rpm assist and forth. I untouched the IAC and the TPS bearing in mind no bend in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to adapt the idle readiness screw to subjugate the rpm and it would maintain for a while. Now, the engine is every time surging to the reduction where I cannot steer it for unease of broken to the drive train. Any experienced solution?
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