94 Geo Prizm Engine Diagram

I have a 2004 ES330 bearing in mind a hestitation problem. It is good from a full end but in imitation of I go in relation to turns upon onto highway ramps, past I upset the accellarator (sp?) it hesitates for 2 seconds before reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon subsequent to the thesame engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights aim 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 hence far? I ve cleaned the MAF sensor. Checked for contacts in the intake. afterward I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant on the subject of 30%. This is a drive-by-wire model in view of that it has not throttle cable or normal TPS. I say yes the TPS is integrated once the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know before I connect 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 ventilate flow meter and said it was good. gone I unplug it and direct the motor, the car runs rasping and at 850ish. I can solitary guess that my further 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 control in the alternative of rpm though? I think it lonesome adjusts it in this area 1k..

behind I start the car, the engine surges taking place in the middle of 1200 and 2000 rpm help and forth. I distorted the IAC and the TPS when no bend in symptoms. I have noticed that several Lexus SC's have this thesame issue. Prior to this I would have to accustom yourself the idle rapidity screw to subjugate the rpm and it would hold for a while. Now, the engine is continually surging to the reduction where I cannot drive it for startle of broken to the steer train. Any experienced solution?

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