I need a genious Options

[Gtguy22]

So some of you have followed my progress with my 94 2.2 gt. I had put a jdm engine in the car. Since i did so, the idle has been too high, around 1500-2000 cold start then down to 1000-1300 warm. I tried vac leaks, map sensor, mass air flow sensor, checked timing, i am completely stumped, the car is running really rich and poorly. Its killing my gas milage, and im out of ideas. PLEASE HELPPPPP

[Bitter]

iirc theres two sensors. one that runs the gauge and one that the computer uses. you'll want to replace the 2 wire temp sensor, not the one wire temp sender. it does sound like thats your issue to me as well. codes take forever to pop up on OBD1. i drove for almost 8 miles with my trans connector unplugged before it threw up a code! so just starting the car for a few minutes with the O2 unplugged may not throw the code, you'd probably need to drive several miles and make 2 or more drive cycles. toyota OBD1 uses a 2 trip fault detection. the problem must be present for 2 consecutive drives before a code will set, however you can put the car into check mode via jumpers in the diag port to cause it throw codes as soon as the problem occurs. good for chasing an intermittent issue.