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Thank you sir for your input. Appreciate it. Do you think an shitty alternator could have caused this? I am just trying to think if there is anything that I could have done to cause this. When I worked on it the first thing that was undone was the negative battery cable...forgot to add on the...

While testing the hz on the ks signal and moving the computer around I noticed the neo restarting itself. It was face down in the dark most of the time tonight so after fixing the signal/power wires i tested everything......0 hz at ecu on ks signal. 35 ish hz as input to neo. Soooo I bypassed...

And yes. My fancy smancy klein I picked up last night does frequency. Thanks for the tip I will give it a shot tonight.

No the owner has not. I will put that on his to do list when the car goes back to him.

Tested KS-BODY GROUND(normal is 4-6v ignition sw on)...So when the NEO is plugged in it fluctuates between 1.9 to 2.8 volts. When the neo is bypassed it stays solid at 4.79 volts. Is the neo suppose to lower the voltage? It stayed the same when idling with neo plugged in. Didn't try it with neo...

I didn't spray it inside probe just on the outside where there was a nice build up of gunk. I doubt completely killed it but It does have alot of miles on it so maybe I finally killed it. But I will be thoroughly testing it and the wires tonight. So if wires check out then it should be the AFM.

Yes^ This is kinda what was a bit of a head scratcher last night. The wire that was all fubar'd was the KS signal. The green with red stripe. But now I have a code that says no voltage between THA-E2? I didnt get a chance to diagnose the 31 code last night cause I spent time fixing the wiring at...

Ok.... After reading the TSRM when I got home I realized the vacuum has nothing to do with it. It was just an assumption cause I knew the 31 code was AFM something or other. So i Immediately started thinking about that area if I left something unplugged and remembered that line. And carb cleaner...

I have really good knowledge in motors in general in rebuilding etc etc but when it comes to diagnosing electrical grimlins or turbo stuff...thats where I can be limited usually, and I actually work for toyota, So the TSRM has been alot of help. I have seriously exhausted everything I can think...

Egr is not stuck open. I had it off the car and tested it. Only issue was it leaked through the shaft a little bit. As soon as I finished the car I blamed the tuning, electronics. But his tuner and him blamed something else.I fixed his fuel leak and his giant exhaust leak...so idk. Thats why I...

Took about 2 times on and off for it to start clicking. As soon as i hit throttle though it threw a code 31. As soon as that happened I realized I forgot to plug in the L-shaped vacuum line underneath the intake that goes to the air control valve underneath the water pump area. Plugged it back...

I actually just signed on to ask this question. If it would reset to full open by itself causeI think I installed it in full closed position and that's why it has horrible idle. Thank you ill give it a few start and possibly a drive down the street and back

So this weekend I had some time to check all the pins to the ecu for correct voltage and remove wire harness and check for broken wires. Nothing. I knew deep down inside I was doing the test wrong for the IACV because the ohms test checked out. So after knocking my head for a bit and reading the...

I would have to warm the car up a little bit to hear any audible clicking correct? Or is the clicking the IACV closing which would mean it would click no matter the temp? But would the leaky EGR and the stuck open IACV cause a funky really lean idle?

here is a video http://youtu.be/9QTjWQLwZdc

Iacv failed the Tsrm test. Passed in resistance but when power supplied to pins and the others grounded... The plunger just twitched. Took it completely apart and cleaned it and verified the shaft wasn't frozen and zero change. EDIT: IDLE CONTROL VALVE IS FINE.

Forgot to kinda add... Initial start when cold it will idle fine at around 800-1000 rpm for approx 45sec then slowly become leaner and idle drops to around 500. And with the egr.. The removed it and blew Air through the intake side it was solid. Just started it and applied vacuum to top hose...

I know its not an easy answer but you might wanna pre fit it together on the floor or something and put it next to the car and then you will see if your missing a pipe. But after looking at the kit(dm1082) and visually putting it together in my head...I think you are missing 2 pipes.

Ill try to be as short as possible... 91 supra,manual, turbo, 550 siemen injectors, aem wideband, apexi neo, aeromotive FPR, upgraded ct26.greddy profec spec2 11.5psi About 2k since motor was put together. This is a buddies car that I work on more then I would like to. He has an NA that I...