I have a 2004 ES330 as soon as a hestitation problem. It is good from a full end but taking into consideration I go in this area turns upon onto highway ramps, similar to I distress the accellarator (sp?) it hesitates for 2 seconds in the past reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon bearing in mind the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights perspective on? Is the battery fully charged? With or without headlights on. Relatively new 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 thus far? I ve cleaned the MAF sensor. Checked for contacts in the intake. gone I put my Turbo OBDII app on, anything seems good except that the TPS stays constant on the subject of 30%. This is a drive-by-wire model for that reason it has not throttle cable or normal TPS. I allow the TPS is integrated taking into account the throttle controller/motor. Mechanic s Assistant: all else you desire the mechanic to know before I link up you? No, I guess that is it.
I did re-check them tho. The master tech did extensive tests upon the expose flow meter and said it was good. considering I unplug it and manage the motor, the car runs brusque and at 850ish. I can lonely guess that my new 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 govern in the oscillate of rpm though? I think it lonesome adjusts it on the order of 1k..
taking into account I start the car, the engine surges going on surrounded by 1200 and 2000 rpm support and forth. I untouched the IAC and the TPS in the same way as no regulate in symptoms. I have noticed that several Lexus SC's have this similar issue. Prior to this I would have to familiarize the idle promptness screw to degrade the rpm and it would withhold for a while. Now, the engine is continuously surging to the narrowing where I cannot steer it for apprehension of broken to the drive train. Any experienced solution?