imported_dented dx

car revs at 4000 till it warms up, idols at 1500 and is getting about 300-400 km a tank. any ideas would help.

note: engine is fully rebuilt with brand new everything, and everything is newly machined professionally.

PSI_Envy

Adjust the throttle cable...it's probably too tight.

imported_dented dx

not the throttle cable cuz it settles down at idle and i have set it so taht its got a couple mm or slack

bbarbulo

iTrader: (2)

hey buddy.... I'd disconnect the throttle cable for now. it eliminates at least that one possiblility, cuz I've seen a similar problem before and it would settle into a lower rpm also - and it WAS the cable.

secondly, I'd unplug the IACV. this should just have you running at base idle. this is how I'm running my car currently - no IACV. idle is perfect. if this fixes the problem, then it's time for a new throttle body or re-checking the wiring and the ECU.

also, ensure there are no vacuum leaks of course (unlikely, but who knows??) and of course all the regular things like ignition base timing.

imported_kIeRaN

u throwin any codes?

imported_dented dx

yeah but i don't know how to check obd1 codes

bbarbulo

iTrader: (2)

bridge the obd connector. actually, good instructions are here:

http://honda-tech.com/zerothread?id=1171263

dingus88

maybe your tps is off adding fuel and you have a massive vacuum leak adding more air...

either way check for leaks around mani etc..pull codes is key