Turbz RB-25 Posted April 25, 2009 Share Posted April 25, 2009 Hi Fellas, My car has started to stall randomly while driving and while idleing. For example, I would be driving my car 10-15 mins, and then it feel like the engine shuts down, then switches back on, the shuts down, switches back on, almost as though the fuel cuts in and out.?? The happens can happen whenever, full throttle, idle, cruising speed, you name it. It'll happen to me 2-3 times while driving and frankly it's getting quite dangerous when my car stalls on a busy street. WHen the problem occurs on idle, the rpm drops to almost 0, then bounce back up to 1000, then back down to almost 0, so strange? and it only occurs some times which really puzzles me? SOmetimes I can go for a 30min drive and it doesn't happen... DO you fellas have any idea what it might be? Fuel pump? Coil packs? spark issue? Tune on the car? ANy help would be great. Cheers and have a good long w/e Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/ Share on other sites More sharing options...
Turbz RB-25 Posted April 25, 2009 Author Share Posted April 25, 2009 Anyone? Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4556191 Share on other sites More sharing options...
crack Posted April 25, 2009 Share Posted April 25, 2009 air flow metre. mine did the exact same thing. Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4556213 Share on other sites More sharing options...
2LV8ETR Posted April 26, 2009 Share Posted April 26, 2009 Mine too. AFM was dirty. Give it a spray with carby cleaner. Try this first and see how you go. Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4556316 Share on other sites More sharing options...
MBS206 Posted April 26, 2009 Share Posted April 26, 2009 What's done to the car, and what car? Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4556389 Share on other sites More sharing options...
sxwpn Posted April 26, 2009 Share Posted April 26, 2009 Air flow meter mine did the exact same thing clean it or get a some one elses test it if it fixes get a new one Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4556933 Share on other sites More sharing options...
Benzino33 Posted April 26, 2009 Share Posted April 26, 2009 Hi Fellas,My car has started to stall randomly while driving and while idleing. For example, I would be driving my car 10-15 mins, and then it feel like the engine shuts down, then switches back on, the shuts down, switches back on, almost as though the fuel cuts in and out.?? The happens can happen whenever, full throttle, idle, cruising speed, you name it. It'll happen to me 2-3 times while driving and frankly it's getting quite dangerous when my car stalls on a busy street. WHen the problem occurs on idle, the rpm drops to almost 0, then bounce back up to 1000, then back down to almost 0, so strange? and it only occurs some times which really puzzles me? SOmetimes I can go for a 30min drive and it doesn't happen... DO you fellas have any idea what it might be? Fuel pump? Coil packs? spark issue? Tune on the car? ANy help would be great. Cheers and have a good long w/e That happened to my 33, I replaced the Idle stepper motor, cleaned the AFM and repositioned the TPS. fixed it. Good luck Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4556937 Share on other sites More sharing options...
Turbz RB-25 Posted April 26, 2009 Author Share Posted April 26, 2009 CHeers Fellas, will get some carby cleaner tomorrow. By the way, is it ok if I use degreaser instead of carby cleaner? The reason I ask is because I got degreaser at home but no carby cleaner. Cheers fellas. Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4556950 Share on other sites More sharing options...
2LV8ETR Posted April 26, 2009 Share Posted April 26, 2009 By the way, is it ok if I use degreaser instead of carby cleaner? No. Degreaser leaves a residue. Carby cleaner doesn't. Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4557112 Share on other sites More sharing options...
smok74 Posted April 26, 2009 Share Posted April 26, 2009 Hi Fellas,My car has started to stall randomly while driving and while idleing. For example, I would be driving my car 10-15 mins, and then it feel like the engine shuts down, then switches back on, the shuts down, switches back on, almost as though the fuel cuts in and out.?? The happens can happen whenever, full throttle, idle, cruising speed, you name it. It'll happen to me 2-3 times while driving and frankly it's getting quite dangerous when my car stalls on a busy street. WHen the problem occurs on idle, the rpm drops to almost 0, then bounce back up to 1000, then back down to almost 0, so strange? and it only occurs some times which really puzzles me? SOmetimes I can go for a 30min drive and it doesn't happen... DO you fellas have any idea what it might be? Fuel pump? Coil packs? spark issue? Tune on the car? ANy help would be great. Cheers and have a good long w/e The less residue you leave on the AFM the better - residue (especially oily crap) promotes more sh*t sticking to the wire element .... what I did with mine, flushed the element in the middle of the AFM with a bit of acetone using a little squiter / dropper.... watched all the brown shit come dripping off. Just gotta watch the acetone doesnt come into contact with the wall of the AFM for too long, being plastic, you wouldnt wanna melt it lol its lucky acetone evaporates quickly.... Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4557144 Share on other sites More sharing options...
Turbz RB-25 Posted April 27, 2009 Author Share Posted April 27, 2009 Hi fellas, I got some carby cleaner yesterday and cleaned the wires in the AFM with it. Alot of brown shit flowed off so it looks brand spankin new now. It hasn't stalled since and I have a feeling the problem is solved (fingers crossed) Thanks for all your help fellas, greatly appreciated. Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4560074 Share on other sites More sharing options...
Turbz RB-25 Posted April 28, 2009 Author Share Posted April 28, 2009 Fellas, The stalling thing happened again yesterday...... I must say but it's improved, If it was a 8/10 pain in the arse last time, now it's about 2/10. Nonetheless, it's still doing it?? Should I take out the AFM again and spray it again?? Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4562230 Share on other sites More sharing options...
Beelzebub89 Posted April 28, 2009 Share Posted April 28, 2009 Is your BOV plumb back or atmo? Atmo vented BOVs have been known to cause the same problem. Could also be your Idle Air Control Valve? I think its called. Will probably need cleaning and the idle resetting eiter with the TPS or through the ECU. When I had my 33 gtst the same thing happened to me. I did the above and it never happened again. Here is a great tutorial for cleaning the IAC in case you're unsure what to do. http://www.skylinesaustralia.com/forums/Di...nd-t110431.html Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4562299 Share on other sites More sharing options...
Turbz RB-25 Posted April 29, 2009 Author Share Posted April 29, 2009 Is your BOV plumb back or atmo? Atmo vented BOVs have been known to cause the same problem. Could also be your Idle Air Control Valve? I think its called. Will probably need cleaning and the idle resetting eiter with the TPS or through the ECU.When I had my 33 gtst the same thing happened to me. I did the above and it never happened again. Here is a great tutorial for cleaning the IAC in case you're unsure what to do. http://www.skylinesaustralia.com/forums/Di...nd-t110431.html Yeah, I might give the ACC a clean. It's strange, when idle drops, the voltage on the PFC displays 8.8v, maybe it's something to do with my alternator? Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4562325 Share on other sites More sharing options...
Turbz RB-25 Posted April 29, 2009 Author Share Posted April 29, 2009 What puzzles me is that it can happen at any time, thats why I don't think it's the ACC. The stall can happen even when I am fully on boost, and bang it'll just cut out, then it will cut back in again... It can also randomly just happen on idle... Maybe it's something to do with the tune??? Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4562727 Share on other sites More sharing options...
Turbz RB-25 Posted April 29, 2009 Author Share Posted April 29, 2009 I've narrowed it down to the following things: 1) Crank Angle Sensor 2) Fuel Pump 3) Harnesses to sensors 4) Ignition Control Module 5) 02 Sensor 6) Coil Packs 7) Spark Plugs 8) AFM What do you fellas think? Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4562824 Share on other sites More sharing options...
Jmaac Posted April 29, 2009 Share Posted April 29, 2009 series 1? sounds like the classic power transistor/ignition module is on its way out Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4562893 Share on other sites More sharing options...
Turbz RB-25 Posted April 29, 2009 Author Share Posted April 29, 2009 series 1? sounds like the classic power transistor/ignition module is on its way out It's a series 1, but it has a series 2 engine? I've also recently placed the RB30 short block on it, with 256 in 264 exh cams, porged pistons, rods etc etc, and a GT35R turbo. The car is currently on it's run in tune. sometimes in the middle of driving the engine just stalls... it can usually be just pulled over onto the side of the road and started again.. sometimes it doesnt quite get to the point of stalling but just has an extreme lack of power and no acceleration ability for a few seconds.. I've read a few commodore threads and it seems that their problem is always the CAS...??? Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4562905 Share on other sites More sharing options...
Turbz RB-25 Posted April 29, 2009 Author Share Posted April 29, 2009 bumpity Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4563136 Share on other sites More sharing options...
Turbz RB-25 Posted April 30, 2009 Author Share Posted April 30, 2009 bumpity x2 Link to comment https://www.sau.com.au/forums/topic/267107-r33-gts-t-randomly-stalling-while-driving-pls-help/#findComment-4564609 Share on other sites More sharing options...
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