I have 89 Ef with a stock B18b1 bottom block w/b20B Pr4 Head, M/T Ys-1 tranny, stock IM, stock Header, running virgin Obd1 Pr4 Ecu, I bought the car with the swap which ran pretty damn good until a heat temp sensor went bad, which pretty much caused the car to go into limp modeI. I replaced the plug which fixed the problem but ever since my Idle is @ 1600rpm, I reset ecu, did the idle relearn procedure again an again. Realized my ecu was throwing a cel code, #10 IAT sensor. I have replaced sensor with brand new OEM, Tested OMHs on plug and sensor which are correct, but still throwing CEL code, high idle until car is warm then drops to roughly 800rpm, while driving in gear idle is fine but once in neutral or push the clutch in it rockets to 1500rpm, been going on for a month now then recently noticed my car has been burning fuel at high right, CEL now throws code 10 & 43, motor running hot and ttys to over heat. Fans won't kick on don't think they ever did.... I've trouble shot ever possible thing from vacuum leak, IACV, Heat temp sensor, IAT, Throttle Body, thermostat, an any other possibilities I could research or think of. I'm at a total loss. PLEASE HELP!!