Jump to content
SAU Community

Recommended Posts

Hi there..

Hey my R32 GTS-t has started trying to stall when cruising at about 100ks.. It hasnt done it a lot, but it gives ya a bit of a fright when your car tries to die as your driving it on the highway lol.. anyway, it seems to try and die when its cruising, not under any great load or anything.. the cars an auto, so no change in bov.. thinking it could be a fuel filter cause im not sure when it was last done, esp because of the way it drops power very fast for about 2 seconds and then comes right.. the thing im wondering here is most fuel filters ive seen are made of like a clear semi transperant plastic.. but the on in this car is quite an old looking silver tin one.. is there any chance it could still eb the factory one or something?

cheers

Link to comment
https://www.sau.com.au/forums/topic/306106-stalling/
Share on other sites

it could still be the factory one, but you will find that the replacement one will look pretty much identical. it would be worth replacing either way just to rule it out. sounds a bit weird that it is only doing it at light load. could also be an AFM issue, o2 sensor, AAC valve issue.

Link to comment
https://www.sau.com.au/forums/topic/306106-stalling/#findComment-5062163
Share on other sites

it could still be the factory one, but you will find that the replacement one will look pretty much identical. it would be worth replacing either way just to rule it out. sounds a bit weird that it is only doing it at light load. could also be an AFM issue, o2 sensor, AAC valve issue.

will look at changing the fuel filter and see what happens.. the only think ive changed recently is adding a full 3" turbo back exhaust.. but that was about 2000k's ago and its only started doing it now.. is there anyway way to check the o2, afm and aac valve?

Link to comment
https://www.sau.com.au/forums/topic/306106-stalling/#findComment-5062176
Share on other sites

will look at changing the fuel filter and see what happens.. the only think ive changed recently is adding a full 3" turbo back exhaust.. but that was about 2000k's ago and its only started doing it now.. is there anyway way to check the o2, afm and aac valve?

since the car was traveling at 80 -100km at the time of the drop, and so doing around 2.5 - 3k rpm, wouldnt that rule out the aac vavle? just trying to think of what might cause this so i have somehwere to start.. any input is welcome! cheers..

Link to comment
https://www.sau.com.au/forums/topic/306106-stalling/#findComment-5062207
Share on other sites

It won't be the AAC valve - that is only for idle control.

IT WILL NOT BE THE O2 SENSOR!!!!!!!!!!!!! A dead O2 sensor will not prevent the engine from running. It will simply cause an increase in fuel consumption (at worst).

It could be the fuel pump controller playing up. See if you can get a fuel pressure gauge set up and drive around a bit observing if fuel pressure has an effect.

The clear plastic fuel filters are for carburetted engines. They only need to withstand around 4psi pressure. All EFI engines run a metal canister fuel filter, so they can withstand the 3bar + fuel pressures.

Link to comment
https://www.sau.com.au/forums/topic/306106-stalling/#findComment-5063307
Share on other sites

It won't be the AAC valve - that is only for idle control.

IT WILL NOT BE THE O2 SENSOR!!!!!!!!!!!!! A dead O2 sensor will not prevent the engine from running. It will simply cause an increase in fuel consumption (at worst).

It could be the fuel pump controller playing up. See if you can get a fuel pressure gauge set up and drive around a bit observing if fuel pressure has an effect.

The clear plastic fuel filters are for carburetted engines. They only need to withstand around 4psi pressure. All EFI engines run a metal canister fuel filter, so they can withstand the 3bar + fuel pressures.

cheers for the help! gives me something solid to start on

Link to comment
https://www.sau.com.au/forums/topic/306106-stalling/#findComment-5065516
Share on other sites

clean your AFM, AAC valve with cabi cleaner. and try.

is your AUTOMATIC transmisson..? if so,

1 when it try to stall put it in to N

2 see how you feel. if u feel it want try to stall,

3 check your transmission fluid level.

drive or idel until engine get warm,

drive 1 2 3 and D and put in to R put in to N and leave it 1 min and check the level of the fluid. fluid level S/B in between L - H level. make sure your dipstick with no fluid bubles. if so do a transmission service.

I had the same prob with my car. hope ths will help u.

Hi there..

Hey my R32 GTS-t has started trying to stall when cruising at about 100ks.. It hasnt done it a lot, but it gives ya a bit of a fright when your car tries to die as your driving it on the highway lol.. anyway, it seems to try and die when its cruising, not under any great load or anything.. the cars an auto, so no change in bov.. thinking it could be a fuel filter cause im not sure when it was last done, esp because of the way it drops power very fast for about 2 seconds and then comes right.. the thing im wondering here is most fuel filters ive seen are made of like a clear semi transperant plastic.. but the on in this car is quite an old looking silver tin one.. is there any chance it could still eb the factory one or something?

cheers

Link to comment
https://www.sau.com.au/forums/topic/306106-stalling/#findComment-5065684
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • My thinking is that if the O2 sensor is shot then your entire above described experience is pure placebo.
    • Here is the mess that I made. That filler there was successful in filling dents in that area. But in the middle area. I can feel dents. And I've gone ocer it multiple times with filler. And the filler is no longer there because i accidently sanded it away. I've chased my tail on this job but this is something else lol. So I'm gonna attempt filler one more time and if it doesn't work I'll just high fill primer the door and see where the issues are because guidecoat is of no use atm.
    • Ok, so I think I sort of figured out where I went wrong. So I definitely overthinked it, and I over sanded, which is probably a large part of the problem. to fix it, I ended up tapping some spots that were likely to be high, made them low, filled them in, and I tackled small sections at a time, and it feels a lot better.    I think what confused me as well is you have the bare metal, and some spots darker and some are lighter, and when I run my finger across it, it' would feel like it's a low spot, but I think it's just a transition in different texture from metal to body filler.    When your finger's sliding on the body filler, and crosses over to the bare metal, going back and forth, it feels like it's a low spot. So I kept putting filler there and sanding, but I think it was just a transition in texture, nothing to do with the low or high spot. But the panel's feels a lot better, and I'm just going to end up priming it, and then I'll block it after with guide coat.   Ended up wasting just about all of my filler on this damn door lol  
    • -10 is plenty for running to an oil cooler. When you look at oil feeds, like power steering feeds, they're much smaller, and then just a larger hose size to move volume in less pressure. No need for -12. Even on the race cars, like Duncans, and endurance cars, most of them are all running -10 and everything works perfectly fine, temps are under control, and there's no restrictions.
    • Update: O2 sensor in my downpipe turned out to be faulty when I plugged in to the Haltech software. Was getting a "open circuit" warning. Tons of carbon buildup on it, probably from when I was running rich for a while before getting it corrected. Replaced with new unit and test drove again. The shuffle still happens, albeit far less now. I am not able to replicate it as reliably and it no longer happens at the same RPM levels as before. The only time I was able to hear it was in 5th going uphill and another time in 5th where there was no noticeable incline but applying more throttle first sped it up and then cleared it. Then once in 4th when I slightly lifted the throttle going over a bump but cleared right after. My understanding is that with the O2 sensor out, the ECU relies entirely on the MAP tune and isn't able to make its small adjustments based on the sensors reading. All in all, a big improvement, though not the silver bullet. Will try validating the actuators are set up correctly, and potentially setting up shop time to tune the boost controller on closed loop rather than the open loop it is set to now. Think if it's set up on closed loop to take the O2 reading, that should deal with these last bits. Will try to update again as I go. 
×
×
  • Create New...