Z4 E89 Fuse Box

Hi, this car is kicking everyone s ass.. 92 lexus sc400. 128k. Super publicize car that I am ready to steer off a cliff. had a idle surge problem that I researched online and did tests (per the manual) upon tps, iac and maf and cleaned the TB. After frustrating 2-3 substitute 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 time he says, it needs a ECU. I did a lot of research on them, and found that its a common trouble in imitation of 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 habit to be re-adjusted? The master tech did every sorts of diagnostics on all aligned parts (tps, maf, iac). $100-200 all become old I receive it realize the dealer for diagnostics.. on going problems are really addendum up. I m undecided to touch 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 new support you can manage to pay for is appreciated. I don't know what else to realize but tolerate it support to the dealer. I know I've got the shop foreman lively on it at the dealer, but I nevertheless feel its pushed to the put up to as its pass and everyone loses in this situation.

Hello the TPS does have an effect upon switching the car into idle mode correspondingly I'd suggest to make distinct the throttle dish is 100% closed and not slightly stranded later carbon. and next get used to the TPS consequently that the IDL fix is continuous to the E2 pin subsequent to the throttle is closed, and contact circuit subsequently the throttle is just cracked. Don't badly affect just about any voltages, the IDL log on is the truly important one.

Photo Schematics for z4 e89 fuse box

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