I have a 2004 ES330 with a hestitation problem. It is fine from a full stop but next I go going on for turns upon onto highway ramps, gone I afflict 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 like the same engine and it jumps off the begin and has no hesitation. Mechanic s Assistant: Will the headlights viewpoint on? Is the battery fully charged? With or without headlights on. Relatively extra 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. subsequently I put my Turbo OBDII app on, everything seems fine except that the TPS stays constant in the region of 30%. This is a drive-by-wire model hence it has not throttle cable or normal TPS. I understand the TPS is integrated taking into consideration the throttle controller/motor. Mechanic s Assistant: anything else you want the mechanic to know back I link up you? No, I guess that is it.
Might plus be worth checking the wiring and connector to the airflow meter for any signs of corrosion or damage. you can pull off a quick malfunction locate if you unplug the meter and control the engine without it. if the engine condition is the thesame next chances are the meter or the link to it is faulty. Its as well as worth cleaning the MAF sensor wires, as they can acquire coated later dirt more than period which subsequently offsets the reading. Use some admittance cleaner or brake cleaner to vaporizer onto the wires to surgically remove the dirt upon no account be next to the wires in imitation of whatever as they are categorically fragile
taking into account I start the car, the engine surges occurring along with 1200 and 2000 rpm support and forth. I changed the IAC and the TPS taking into account no tweak in symptoms. I have noticed that several Lexus SC's have this same issue. Prior to this I would have to familiarize the idle enthusiasm screw to belittle the rpm and it would hold for a while. Now, the engine is until the end of time surging to the narrowing where I cannot drive it for siren of broken to the drive train. Any experienced solution?