Chevy Tahoe Wiring Harness

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super spread around car that I am ready to drive off a cliff. had a idle surge burden that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After a pain 2-3 every second used IAC s, I took it to the master tech at lexus. He said it was the IAC valve. He tried my used ones.. and finally a rebuilt one. still had issues. assist to the dealer.. this become old he says, it needs a ECU. I did a lot of research on them, and found that its a common difficulty in the same way as this car.. bought a used one.. more trouble. had the indigenous one rebuilt by a specialist.. and that s where I am at now.. Put it in tonight and the car idles at 2k rpm. Does the TPS need to be re-adjusted? The master tech did all sorts of diagnostics upon every aligned parts (tps, maf, iac). $100-200 every get older I consent it do the dealer for diagnostics.. on going problems are essentially extra up. I m hesitant to lie alongside the tps if he had it dialed. Any insight? Thanks in advance. Jason

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Thanks for your response. I just checked what you mentioned, that I hadn't already checked, except fuel pressure.Let me say you a little more nearly the difficulty history. It currently has a master tech certified idle let breathe manage valve and tps installed. without upsetting anything, the last (used) ecu and my original, would rule in the car without this symptom.

Hello the TPS does have an effect on switching the car into idle mode therefore I'd recommend to make definite the throttle dish is 100% closed and not slightly stranded afterward carbon. and subsequently adjust the TPS in view of that that the IDL glue is continuous to the E2 pin in the manner of the throttle is closed, and gate circuit in the manner of the throttle is just cracked. Don't badly affect very nearly any voltages, the IDL right of entry is the really important one.

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