Rb25det Overfuels And Wont Rev

[Rednisr31]

it wont rev past like 2000 (assumption the tacho doesn't work) and it over fuels hardcore

splutters too, theres an exhaust leak but its at the dump which is past the oxygen sensor

so that shouldn't cause a problem should it?

i did the cooler piping again and tried it with just piping plumbed from the turbo to the inlet to no avail

any ideas?

i cannot seem to find a vaccume leak, but i reckon there has to be one

[paulr33]

failed afm

disconnected afm

faulty afm circuit

afm unplugged

[Rednisr31]

tried another afm made no difference

[paulr33]

check if the afm wire on the stock ecu has voltage

or run stock ecu diag

or run whatever ecu you have diag

[Strik3r]

yea sounds like ECU is in limp home mode..... if you've tripple checked the AFM, maybe disconnect the negative battery terminal and pump the brakes a few times to reset your ECU.....

[Rednisr31]

i'll try that all 2morrow

i thought it would be a vaccume leak, but a vaccume leak would let it rev but just shit wouldnt it?

i'll get the multimetre on the afm wiring 2morrow... whats it meant to do what voltages where?

[paulr33]

idle should be around 1100mv

[Rednisr31]

sorry im noob

on what wire? on the ecu what colour? or what

and the car idles high aswell

[Rednisr31]

what wires?

i will pay ANYBODY cash if they can fix it for me, or show and prove to me exactally what is wrong

[RB20_ZED]

what wires?

i will pay ANYBODY cash if they can fix it for me, or show and prove to me exactally what is wrong

I got the same problem - its gotta be the ecu or afm - both of which are hard to find for the red tops.

Good luck (lemme know if u figure it out).

[Rednisr31]

had an auto elec around

came good, car wont rev out under load tho but i think its pretty fouled up so im gonna take it for a long drive