boostin4door

whats up i just swapped a gsr into my hatch, i am using a obd2 manifold (not by choice) in my 93 hatch... all the sensors are plugged in, but the ecu is flashing intake air temp and tps... i was thinking maybe a vacume wasnt hooked up but i checked and they were... so i changed the IAT sensor on the manifold itself and it still throws that code... and another problem which is the most annoying it idles really high... BTW i checked the throttle cable so its not that, i checked the vacumes so its not that and i adjusted the idle air screw all the way down so its not that.. any other suggestions?

one8toh8

1:does your car have cruise control, if so is it hooked up,
2:if you car does not have cruise control, then you most likly have a vaccum leak on the intake manny, that is causing it to idle high.

I had the same problem but i fixed it, it was because the intake manny has a nipple in the back on the driver side,(this is were the cruise control vac hose would go), check to see if this is the prob, if it is then plug it and you should be fine, if not then check for other vaccum leaks.

boostin4door

the only little nipple i see sticking out on the back driver side is where the fuel pressure regulator vaccume goes..... or is it another one?

one8toh8

no its right behind the spot where the barke booster vaccum goes to on the intake manny, and directly to the right of the IAC.

boostin4door

i dont know man, the only thing i saw back there was the little nipple sticking out was the one on the driver side in the back of the manifold on top which is where the fuel pressure reg. vacumes goes too... its hard to explain to me what your exactly talking about on the internet thats the problem lol...