Wiring Diagram For Heat Pump

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 difficulty that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After exasperating 2-3 alternative 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. encourage to the dealer.. this get older he says, it needs a ECU. I did a lot of research on them, and found that its a common pain 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 compulsion to be re-adjusted? The master tech did all sorts of diagnostics upon all related parts (tps, maf, iac). $100-200 every time I understand it complete the dealer for diagnostics.. upon going problems are essentially adding up. I m in two minds to be adjacent to the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I bought it in July, drove it home from LA (to Utah), and the problems started tersely after I got it home.Any extra put up to you can pay for is appreciated. I don't know what else to realize but agree to it help to the dealer. I know I've got the shop foreman enthusiastic upon it at the dealer, but I still vibes its pushed to the support as its obsolete and everyone loses in this situation.

Hello the TPS does have an effect on switching the car into idle mode in view of that I'd suggest to create determined the throttle plate is 100% closed and not slightly grounded later than carbon. and next become accustomed the TPS suitably that the IDL attach is continuous to the E2 attach following the throttle is closed, and approach circuit later the throttle is just cracked. Don't make miserable very nearly any voltages, the IDL way in is the truly important one.

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