Redline problem and stall

[95skyline]

Tryed asking this question of skyline-owners, out in the UK... nothing usefull.

R33 GTST 1995 RB25DET
Intercooler
hks intake kit
walb 255
stock ecu.

The problems are. (all random, not consistant in occurance)
Redlines at 3,000 < You can shift up but still redlines... sometimes >
chuggs when turning slowly < has stalled several times >
stalls when parked <random times >

We think it's the AFM, or lack of fuel pressure.
But it doesn't happen 24/7 so it's hard to guage, it can run perfect for several hours, and sometimes it just bails on us multiple times.

Does anyone know the acutally problem, or would a tuned standalone ecu fix all?

[95skyline]

If you know the problem and can explain, most likey if you carry the parts will be intrested in purchasing.

[bobbo]

Redlines @ 3K RPM?!? I assume you mean it won't rev past 3000RPM?
When you say "chugs when turning slowly" do you mean when the engine is at low RPMs or when you are actually turning the car?
Have you checked the ecu for codes? Are there any?
I would suggest taking it to Nissan and hooking it up to CONSULT. It might cost you $100 but if you have no other means of checking sensor values then it could likely save you a lot of guess work.
Don't think for a second changing your ecu will make things better. Adding performance parts to a car that already has problems will just make things worse.

[anthony]

sounds like limp mode if it wont rev over 3000 ,i agree first check your ecu for codes it will tell you what is wrong
could possibly be afm clean it and you might need to resolder it

[caliber676]

I agree, sounds like you are in a limp mode. If your considering it to be a fuel problem, check your pressure and go from there. If its intermittent it could be a bad ground for the fuel pump.

If you want to test your MAF, Run through the testing procedures laid out in the FSM as well as resoldering the connections.

Check your O2 sensor as well.

[RSi]

Try putting pressure on the afm plug with your thumb... see if that helps.

[derbeck]

also sounds like a maf resolder to me

[GTRADDICT]

1. Check for codes
2. Check for rich mixture (AFR) and 3k limiter = limp mode.
3. Resolder MAF, if needed.

As for the turning problem... Check P/S pump and wiring where they might get kinked/ground in the turning process

[95skyline]

Thank, you everyone.

Will, check MAF and sensors/connections as listed, also I put a HKS reloaded on order.

As for
CODES? Can you guys explain more on codes? How would one check the "codes?".
Not electical savy.

[stinkyskyline]

i had a similar problem but it was because the vacuum line to the waste gate actuator fell off try that lol hopefully its just that simple