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Can the high idle be caused by the afm or ecu or is my tps still not adjusted right? I know I followed the TSRM when adjusting the tps and did exactly as written. The idle adjusting screw on the top of the tb is screwed all the way in yet it still idles at about 1500 rpms.

Ok new updates. So I bought the meter today. Hooked it up to ks and e2 backprobed to the ecu. At idle of 1600 rpms it is reading at 0.08 kHz, when gas peddle is fully engaged fast it tops out at 2100 rpms and reads at 0.37 kHz, when throttle is slowly pressed in to wot it tops out at 3800 rpms...

Also wanted to let you guys know I really do appreciate everyone's help and patience. I'm learning as I'm going along getting the supra running. As a supra community I can say once the car is running it is not just me who got it running but all of us.

Got it. Will test it as soon as I get the meter and let you guys know the data I get. Will most likely get the meter tomorrow.

Ok so I put one of the probes on the ks but where does the other probe go?

Ive done it before but was thinking of easier ways of working on the it. After all we are getting older day by day, need to take care of ourselves.

So having a old camaro z28, in the world of the camaro nuts, the camaro community cuts a door in the trunk in the area of the fuel pump as a easier access to the fuel pump instead of dropping the tank. Ive been contemplating if i should do this with my supra. It would make easy access to the...

Sweet but has anyone here used them, are they good? Tested all grounds to ecu and to all sensors, all comes up good. Block, head, turbo, intake manifold, tranny, and radiator are all grounded. Ecu should arrive to my place by Friday. Will install it and see if it makes a difference.

Question, is there a third party company that sells new afm other then toyota or the toyota afm are the only ones?

Sweet will pick that up probably this Thursday.

https://m.harborfreight.com/11-function-digital-multimeter-with-audible-continuity-61593.html This one would work right? It is more expensive then the one I have.

Where did you get yours from?

Ok so I never did a hertz reading. How do I go about doing this. If there is a video tutorial of this that would be great.

See this explains a lot. What would be the frequency level I would need in the multimeter? I'm guessing bigger then 50 hertz?

Ok so update. Started the car today and let it get up to operating temp. Coolant temp connection seems to be messed up as the gauge didnt work and then after 15 mins of ilding it jumped to mid range and stayed there. Turned it off and car insistently had no power to anything. Check volts on...

Ok gotcha, so as an example a different voltage range of one part could set of error codes. So I went ahead and temporally fixed the headlight issue so I can leave the battery plugged in. Will start her up later today and hopefully at least drive a block or so if she let's me and leave the...

Will codes come if the supra sits and idles for ahwile? In the state the supra is in it wont drive but it can idle.

I just thought of something! So my headlights stay on unless I unplug the battery(will fix that problem later). Leaving the battery unplug, doesn't that erase the error codes? And wouldn't I need to drive the supra to get the error codes to come back on? Cant believe i didnt think of this until...

I opened the ecu and didn't see anything out of the ordinary other then stains in a few places as if some liquid was dropped on it.

Did that and only thing that made a slight difference was the afm which once I unplug and revved up it stalled. But it still acted the same revving up as it does with the afm plugged in other then stalling. But I didn't test the coolant temp though. Could that cause this problem?