Thread: wont rev over 2500

i got a g20 swaped motor with a jdm sr20de and since then it wont rev past 2500 rpm ive done everything i can think of i have regrounded the maf it has power going to it and i have rewired the maf into the ecu and pulld the nagtive off the battery over night and tryd checking for codes and still nothing so i checkd the volts of the maf going back to the ecu and it is 1.9 volts at idle which the idle is around 1000 rpm i hit the gas and the volts went up is this how it suppose to work? if not can i fix it

swap mafs and try again

Bad wiring, maf in backwards or a bad maf sensor

Brent

Its in limp mode, try leaving the battery disconnected for a few hours or overnight, then if its still in limp mode then something needs to be fixed

sounds like maf issue

ive tryd 4 different mafs and i have left the negative off the battery off over night and it still didnt change anything

try using an air line on teh fuel lines,
had the same issue with a 1999 P11 GT,
I like yourself went through everything, new ECU, maf's i even swapped out the engine loom
turns out there was a restriction of somethig in the fuel line, blew it out with a compressor and issue vanished

so what do i blow out with a compressor

does it idle?

yea it idles around 1k