Ecu Code 45 - Injector Leak

[markk]

Hi Guys,

I've had some issues with my 32 gtr. Mods include: GT 2860R Turbos, Cooler, Splitfire coils, PFC. Currently making 275 @ all four.

I've had some severe missing issues with the car lately. It got to the point where the car was running constantly on 5 cylinders, even on idle. I was getting knock levels up at around 105!

I took it to my mechanic and he changed spark plugs, tested coils, changed ignition amp, cleaned AFMs, replaced the wiring harness, comp tested motor. Car was running fine for about 30mins before it started again.

I put in my old ECU, took the car for a drive and after about 30 mins it started doing it again. I put the ECU into diagnostic mode and error 45 came up - injector leak.

So what exactly does an injector leak mean?? Do i need new injectors?? Could it be fuel pump??

Any help would be appreciated.

Cheers

[cameron]

Its means the injector is leaking... Probly one of the o-rings is split.

Im not sure how it would recognise this fault, maybe a big vary in one of the inj duty cycle?

The knock sensors can pick up noise from the missfire and log that it was detonation, And In your case it sounds like the spark plugs/plugs are foulded.

Pull the injectors out replace the o-rings in all injectors, even while their out get them flow tested/cleaned make sure theirs nothing wong inside the injector - I wouldnt think this is common.

Also if it was that bad, change the oil... fuel in the sump = spinning bearings!

See how you go!

[Scooby]

are you sure it's inj 'leak' ? i'd be surprised if the ecu could measure that. have you had your injectors tested?

[SteveL]

I put in my old ECU, took the car for a drive and after about 30 mins it started doing it again. I put the ECU into diagnostic mode and error 45 came up - injector leak.

No such thing as error code 45 according to the R32 GTR factory WS manual, you'd better re-check. In any event the stock ECU diagnostics aren't set up to detect injector leaks as already suggested.

Edited October 14, 2006 by SteveL

[paulr33]

id be surprised if the ecu could detect injector leak also, it would have no way of knowing. read the powerfc faq in my sig, theres a known misfire bug in the r32 gtr powerfc and it outlines a working fix for it

[markk]

The pdf i attached (page 31) is where i got the error code from.

skylinebook.pdf

[paulr33]

those are for the r31 skyline bosch computer so ignore them

as i said, said the faq it covers a misfire bug in the r32 gtr powerfc

[markk]

Yeah but the misfire is also occuring with the standard computer. So it can't be the PFC.

[paulr33]

it could be a similar type of bug, the fix is like a DIY homejob.

maybe give it a try, can't hurt and should cost $0

[markk]

Thanks Paul. I'll have a look through.