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Way I figured it is if i decrease the airflow signal it wouldn't add so much fuel. So aside from the lexus air meter. If I increase the airflow signal it should run more stoich. I ran a neo on my 1j and had no issue like this before. Thank you supracentral for your help.

correction goes from -12 to -30 from idle to 5500 rpms

Nice ride man. very clean, wheels are tasteful. cant wait to see the motor back together.

The engine is running rich with adjustments made on the afc controler. that is the issue. should be running 14.5ish on wideband.

I just installed a NEO in my brother's supra and went through the initialize setup and did the sensor check, started the car and it runs rich with no engine codes. wide band reads 11-12 AFR. No clue as to what caused the problem. Mod's to fuel system are just a walbro, 550's and afpr set to 35...

verified, checked continuity from e2 pin to each ground on connectors.

All wires checked and accounted for, had a bad connected wire for the pressure signal, the solder broke off inside the tape.

I got a 2400 cfm, 14" perm-a-cool fan and temp switch for 93 bucks from summit racing. Have it ran to a switch on my aluminum radiator and keeps the engine very cool. Came with mounting ties and everything. Part number 19124, think it runs like 108 now for everything

The TPS code is gone, the map code 31 is still there, wondering if the brown wires on both connectors are intertwined as well. Car runs better, just riches out.

Checkig pin locations, will post results

MAP wires, blue with red stripe, yellow with black stripe and brown. Brown, red, yellow, blue with red stipe

lets see some pics of what everyone's got

A turbo supra with a manual trans has a R154 transmission.

Well i got a swap from a soarer gen 1 and the motor came with traction control. Although your jza70 diagram may show a different color stripe on the blue wire, I have the pin one's wire matching up on the third pin on the map as far as color goes.

The wire that i fixed on the tps was blue with red stripe, I dont see a red with blue stripe but that may be jest the connection stated. I see this on the tps and the secondary for traction control. which one is the pin that I bridge the connection?

I have done extensive work and many of hours testing, rewiring and troubleshooting this issue with my single turbo 1jz. I keep getting a code 31 for the airflow meter circut and a tps code, I fixed the wire for the tps then it went away and now its back. So i believe that i have another wire...

doors good on your buddy's car??

For sure, cruisin with some other supras would be great, last summer consisted of SVT focus and some jettas just followin me around while id be out on my evening cruises

second that, just finished going over entire 1j harness and was able to do it on a budget of under $25 at the dealership for a new knock sensor connector and cps connector plus three pigtails and $14 on 40 feet of wire, solder and tips, tape and accordian loom. so yea big time budget.

Steve and dawly real nice mk3's big +1, very clean