Honeywell Wiring Diagrams

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) on tps, iac and maf and cleaned the TB. After a pain 2-3 rotate 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 mature he says, it needs a ECU. I did a lot of research upon them, and found that its a common suffering like this car.. bought a used one.. more trouble. had the original 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 craving to be re-adjusted? The master tech did all sorts of diagnostics on every aligned parts (tps, maf, iac). $100-200 every time I consent it reach the dealer for diagnostics.. on going problems are in reality addendum up. I m unsure to touch the tps if he had it dialed. Any insight? Thanks in advance. Jason

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I did re-check them tho. The master tech did extensive tests on the freshen flow meter and said it was good. behind I unplug it and manage the motor, the car runs uncompromising and at 850ish. I can isolated guess that my new rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of every this. I don't think the tps has that much rule in the vary of rpm though? I think it unaided adjusts it on 1k..

Hello the TPS does have an effect upon switching the car into idle mode so I'd recommend to create certain the throttle plate is 100% closed and not slightly high and dry following carbon. and next acclimatize the TPS as a result that the IDL glue is continuous to the E2 pin taking into account the throttle is closed, and entrance circuit later than the throttle is just cracked. Don't upset nearly any voltages, the IDL edit is the in point of fact important one.

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