Jump to content
SAU Community

Recommended Posts

My car for some reasons has stalling problems after hitting boost when its warmed up.

It has stalled, then when I turned it back on stalls again, then on second time it starts but at times when I gave it some gas it splutters and then plays.

THis only happens when I rev it past 2000 RPM, I drove below 2000 rpm yesterday and didnt play up at all.

What could this problem be??

Link to comment
https://www.sau.com.au/forums/topic/123104-problems-after-boosting/
Share on other sites

how old are your plugs? what type and gap are they? does it only stall when you are decelerating? if so, there is a good chance its your plugs. mine would stall after giving it a bit of stick then slowed down. put new plugs in and went away.

very much doubt it is the bov. seen plenty of skylines with atmo bovs that run fine. most common problem with atmo bovs is people put them on then don't tension up the spring so they leak. and when they do run rich on gear changes it is only for a split second. they don't constantly run rich.

how old are your plugs? what type and gap are they? does it only stall when you are decelerating? if so, there is a good chance its your plugs. mine would stall after giving it a bit of stick then slowed down. put new plugs in and went away.

very much doubt it is the bov. seen plenty of skylines with atmo bovs that run fine. most common problem with atmo bovs is people put them on then don't tension up the spring so they leak. and when they do run rich on gear changes it is only for a split second. they don't constantly run rich.

stock car...

spark plugs have been changed ot new iridium NGK... coil packs r fine too. AFM is clean.

no idea...

i think it may something to do with the fuel system (fuel lines, fuel pump)... thought maybe u guys could chime in with something else...

getting same prob myself at times - seems ok and revs are stable (but higher than normal - idling at 1100rpm ish) but after accelerating and using boost - come to slow down and it can stall here n there.

only thing I can think of personally for mine is AFM on way out as other owners I know had similar trouble >_<

getting same prob myself at times - seems ok and revs are stable (but higher than normal - idling at 1100rpm ish) but after accelerating and using boost - come to slow down and it can stall here n there.

only thing I can think of personally for mine is AFM on way out as other owners I know had similar trouble >_<

well could be who knows... afm eletrics might be f**ked up.

could also be idle control valve. we did some 'tuning' on my car and the next day idle was all over the shop. first it would idle high, then it would stall, then it would hunt. ended up taking the idle control valve off and giving it a good clean. sorted it out for me.

I put money on faulty AFM.

A mates car did the same thing. Started then stalled after one or two seconds. I unplugged his AFM, then started it with a bit of throttle in there, and he limped it home. It would cut out over 2000rpm (exactly), but it made it. New AFM and it runs perfectly.

idle control valve is at the back of the motor on the drivers side. it sits at the end of the plenum at the top. it has 2 pipes coming out of it, 1 of them underneath it. it has 2 plugs on it. if you look at it from the drivers side you will see the idle srew (about 8mm in diameter and takes a flat blade screw driver... i think) it is 3 screws to get off, the 2 plugs and 2 hoses. the bottom hose is a bit of a pain to get on and off.

to clean it you need carby cleaner, and optional is some pipe cleaner. just give it a good spraying. i took the little motor bit off so i could clean it completely. then when you put it back on you may have to adjust your idle, unless you get your screw back in the same spot.

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

    • Kinkstah, no, coilovers aren't illegal, especially as a bolt straight in. The illegal part will be if they're altering suspension geometry beyond factory limits, or the ride height is not legal.   Sounds like the blue slipper just didn't want to deal with any later possibility of mods appearing on the car.
    • The problem has always been that coilovers are able to be adjusted, almost at any time, to be too low. Most people who ever get/got defected for/with coilovers were actually afoul of the minimum ride height rule. So the interpretation by cops/inspectors was always that it is pointless to allow numpty to raise his coilovers and get the car inspected/cleared, then just drop them back down again as soon as they get around the corner from the inspection station.  This led to the interpretation that they were illegal unless rendered such that they can't be adjusted (ie, collars welded to the body, that sort of thing). That may or may not have ever actually been the official line, but I'm pretty sure it's not considered to be a solution these days. Coilovers themselves fall under clause 3.2 b of that manual, because they are an "installation of a variable ride height system" and they don't fit the exclusions in that clause (which point to air springs and other pneumatic adjusters). So, as per previous statements, they require engineering cert to be legal on the road. Once you have such cert, provided you do not adjust them outside the height range covered by the cert, you are OK. Without, you have an unroadworthy vehicle.
    • Here E10 is the cheapest fuel. And general advice is to not use it unless you hate your car. From what I remember it clogs up stuff in the fuel system or injectors?  With US/Canada being E10 across the board, does that mean that all fuel there is terrible?
    • Sorry, are coilovers ACTUALLY ILLEGAL in NSW? They aren't in Vic, as long as they retain 70% of stock travel and the car is above 100mm off the ground. Does NSW actually have a law making coilovers actually illegal? RWC/Blue Slip/Engineering people not knowing the actual f**king laws boils my blood. Demand them to point to the documentation that states a coilover is illegal. (it may exist in NSW ) Edit: I checked. They aren't. https://www.nsw.gov.au/sites/default/files/2021-02/RMS-infosheet-light-vehicle-modifications-manual-suspension-and-ride-height.pdf
×
×
  • Create New...