DjDecibel

i already bought the car with that problem, so i think the previous owner did something wrong.. so the only solution is to send the ecu to repair? i live in italy

Ok, and what can cause this type damage? If the problem is still in the car can damage the ecu again

I did the testing you said. removing the ecu and Grounding the pin16 the fuse does NOT blow i then opened the ecu and I saw a burn diode What can I do?

i'll do the testing in the next days as i don't have the car here... but how is possible that the car has a perfect idle if the 12+ voltage is not feeding the IAC valve?

Hello, i own a '97 R33 GTS-T with RB25 engine, it had a 23710 21U00 ecu replaced with a GTRLink (pcb rev V1.7) the cars starts and runs but not fine, it is a lot rich of fuel and does a lot of black smoke from the exhaust. also the power is not enough. checking the fuses i found that the fuse number 8 (which should be the engine management fuse) keeps blowing.. and now here start my question: is it normal as the ecu is not original or there's a short somewhere in the sensors or harness? or is it a normal thing? Thank you!