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Finally figured it out! Aside from a hairline cracked coil that was causing the misfire it was one really simple mistake... I was running the wrong airflow meter..., my correct one is a 22250-50060, I was trying to run a later model one (22204-20010) causing the ECU's AFM readings to be...

I dont have the exact same issues with a different ECU is the main issue. Now I can run and start it off one ecu, I plug the other one in and I get 3 different codes and it refuses to run. Fuel flow is good, pump is good, injectors are working fine, nothing is stuck open, rail pressure is...

Welp, It still 100% has a faulty ECU. Had the truck wired up and started running ok, same issue but with more surging and less misfiring drove it out of the garage. very weird. Turned it off and turned it back on and all the sudden started getting weird codes: Ign bank 1, coolant temp...

Well eventful few days. To avoid any confusion for myself going forward I have built an independent harness for this harness with tried and true schematics from Kelvin at cartuneNZ I also found 2 key things. 1.) The way it was wired as advised to by the toyota forums swap section almost...

ECT Temp sensor tested 1.205 volts at 646 ohms and raises as temp drops as it should. Coil 1 test 13.95 kon primary and secondary Coil 2 tested 12.7 k on primary and secondary Crank sensor tested 1.22K cam sensor 1 was at 1.208 k cam sensor 2 was at 1.95 k

Hey Extractors thank you again as always for your help, Something is/was causing only the 4.8 volt output on the MREL pin from the ECU the grounds are right, the relay is right but for whatever reason 4.8, whatever. I hardwired the MREL wire to get a ign switched 12v. My IACV has started to...

Well, I have continued to narrow it down and I think I have a better understanding of what's going on now. The reason it was not resetting is because the MREL wire that controls the reset should be tied to the EFI relay, the ECU controls this EFI relay on and off so it keeps the EFI Relay on...

Thanks for the link, that is quite the setup. man o man is that tempting. I suppose worse case I could rock that long term. I don't suppose there would be any negative long term effects, just a longer warm up in the winter right? This is driving me up an absolute wall so I hope i can this...

Welp, Re wired and there is no change. ECU has EFI control and the IACV is still not resetting, B+ turns off as soon as the key is off I pulled the IACV, paint pen'd where the IACV plunger is, ran the engine and pulled it off and it didnt even move. Again, no notable codes. Seems like the...

It does not, when the car is off there is no reset or anything after power is off. When it's surging I did go ahead and plug off the plug and there was absolutely no difference. I finally of course after I finished found a perfect wiring tutorial guide swapping the exact same ecu into the exact...

The plot thickens, I did indeed test unplugged my new denso o2's and sadly to no effect at all. I will test this theory again once I get it up to operating temp. I came out today and we were back to absolutely no idle again, hmmm I tried one main thing which in my opinion kinda sealed the...

Hey extractors, Thanks for the clues! Just to confirm do you mean primary or sub 02’s? currently I am running a new set of primary o2 sensors in the headers but I am not running any sub o2's or any EGR equipment. Do regular ones cause that issue? if so I will for sure unplug them tomorrow and...

Thought I would drop the update I owed! After installing the rebuilt ECU I am positive that was a huge portion of my issues. Engine starts up and runs great, I was able to even get a good pull down the road! After sone I really only have one minor issue and of course, its related to idling...

Ordered and ordered, Thanks again extractors for the insight. I have the "Non Rebuildable" unit so I was afraid of taking it apart but wow, it was completely seized. New bearings coming in Monday as well as the rebuilt ecu this week so hopefully I will be on the path to smooth sailing ( and to...

SORTED!! Though it tested fine the IACV bearing was completely seized, you couldn’t turn it even by hand. I had a spare that was a little better, still doesn’t spin freely but still way better. Swapped it in and sure enough it idles again, definitely not good or smooth but idle has indeed...

Just re tested the TPS on this ecu while I was bored, again displayed the same symptoms so could deffintely be 2 bad ECU's but Following Gloveman's vid I pinned 12v with my test light from the batter positive with my key in the on position, when I pin the RED wire, next to the brown wire like...

Might have a lead here when I was doing some chasing around this morning earlier when it was idling "ok" without any real issues I had tested the TPS sensor with the feeler guage and a test light to rule that out as a possibility. Well, after it started doing its no idle cycle I probed the TPS...

Yep, setup TPS using the multimeter and verified set position using a feeler guage. Its giving the correct indication at least electronically that it is engaging and I popped it off and can physically turn the spring with no issue. Switched back to my old ECU before sending it out today, its...

Planning on testing that today, seems only on occasion for it to do. It was a little cooler out the other day and when I started it up it idled a bit higher as it is supposed to but in turn did not hunt for an idle at all. Seems like it also needs to just be driven and the engine run for it to...

Yea very unfortunate, eBay shop by the name of pro-rebuilds pretty annoying because I directly asked if the caps were replaced and fully rebuild occurred and he acknowledged they were for every rebuild and it was fully gone through. Very surprised though honestly, he has almost a perfect rating...