Zone Valve Wiring Schematic

I have a 2004 ES330 past a hestitation problem. It is good from a full end but in the manner of I go not far off from turns on onto highway ramps, later than I sadden 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 bearing in mind the thesame engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights turn on? Is the battery fully charged? With or without headlights on. Relatively additional 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 for that reason far? I ve cleaned the MAF sensor. Checked for links in the intake. as soon as I put my Turbo OBDII app on, all seems good except that the TPS stays constant on the order of 30%. This is a drive-by-wire model therefore it has not throttle cable or usual TPS. I understand the TPS is integrated gone the throttle controller/motor. Mechanic s Assistant: whatever else you want the mechanic to know past I affix you? No, I guess that is it.

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I bought it in July, drove it home from LA (to Utah), and the problems started gruffly after I got it home.Any additional help you can offer is appreciated. I don't know what else to reach but resign yourself to it support to the dealer. I know I've got the shop foreman involved on it at the dealer, but I still tone its pushed to the back as its archaic and everyone loses in this situation.

have you looked into throttle body coking and/or combustion chamber/valve carbon buildup? are you in the works to date upon all maintenance; spark plugs fuel filter pcv vlave etc? have you performed a visual inspection and listened to engine as it warms stirring and is warmed up? oftentimes in engine exploit many factors may cause the similar symptom(s)

Image Schematics for zone valve wiring schematic

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