Errrrc

Do you think that the fact that when I pull my o2 sensor it doesn't throw and o2 sensor code is indicitive that maybe my o2 sensors are junk?

Adjusted throttle cable as per your instructions. Check and double checked for vacuum leaks. I did find a hose on the map switch off but not sure how long it had been off. Also having trouble finding an accurate comprehend able vacuum diagram for my particular year and motor but I'm pretty sure it's hooked up. My only other thought is maybe I need to let the speed sensor register by driving it a bit. I'm hesitant to pulp my timing covers since my heat shield bolts onto it and I have to pull my whole exhaust to get at it but that might be the next logical step considering it was running fine then at some point after a 500 mile trip it started doing this. Does it sound like it might be a timing issue?

I've adjusted the nut on the throttle cable and it's obd2

I got a misfire code once but it went away when I replaced plugs and wires. I have been getting map sensor code. Iacv is in great condition new gasket cleaned with deform etc.. I'll try and test out the map sensor or perhaps try a new one but I've never heard of them going bad so not sure if that's the problem. Any insight as to why I get no o2 sensor code when disconnecting o2 sensor?

I have a 95 ej22 conversion in a volkswagen. It had been running fine and i can't quite remember when it started but when the engine comes up to temp it'll idle down to about 850 then Rev up to around 2k then slowly die down to 850 then back down. Ive been told it should idle at 750 and i can tweak the throttle to idle steady just undwr 1000 but thats just masking the problem. I replaced the iacv with a tested used part. Twice. Nothing. I have a small vacuum leak at my brake booster but I have plugged it at the engine with no change. Tested the tps and the signal voltage is in the range it should be according to FSM. I've yet to pull the timing cover to see if I skipped a tooth but it runs like a dream when it's not idling so I think the timing is fine. Unplugging tps makes it idle high yet steady. Unplugging iacv same thing. Unplugging maf makes it stall and knock sensor makes it slightly less intense but it still hunts. I occasionally get the code p0106 manifold pressure absolute but the solenoid seems to be in working order. When I unplug the o2 sensor I don't get a code which is weird. The sensor in the cat is the one that came with the car the one before the cat is aftermarket. I'm at a loss here except I think the ecu thinks it's going to stall so it revs up to compensate but I can't figure out what is actually causing it.