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Hi All

Finally received my Stagea after 2 months, just in love with my new toy. Only found out this arvo that it has automatic headlights... I was in heaven. :rofl:

It is doing something very weird though. It stalls occasionally and I can't really figure out a patern yet. The engine runs smooth and idles well. It would stall randomly when the car comes to a stop. It doesn't happen all the time but happens often enough to be a concern. Anyone has any idea that might save me a trip to the mechenics?

Cheers.

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Hi All

Finally received my Stagea after 2 months, just in love with my new toy. Only found out this arvo that it has automatic headlights... I was in heaven. :rofl:

It is doing something very weird though. It stalls occasionally and I can't really figure out a patern yet. The engine runs smooth and idles well. It would stall randomly when the car comes to a stop. It doesn't happen all the time but happens often enough to be a concern. Anyone has any idea that might save me a trip to the mechenics?

Cheers.

I have a similar problem with my M35. It only happens when in 2nd or 3rd and brake quickly to a stop. The solution I have used for the moment is to push it back into D before I stop and I do not have the problem.

I have asked my dealer and they suggested it may be related to the spark plugs nearing the end of their life (I have 70k on the clock). Not rushing this solution as it only stalls occasionally driven this way.

Will be interested to hear if anyone has any other suggestions.

Cheers

Andy

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Well this might be completely wrong, but I had the same trouble with my series 2, tiptronic auto, and it was a transmission fault. One of the two main shift solenoids (which I think controls hydraulic fluid flow) and a hydraulic pressure regulator, both part of the same component pretty much, were faulty and caused random stalling when I came to a stop. Engine ran fine otherwise. It wasn't happening right as I stopped but abo9ut a half second or so after. If you have an auto trans problem then a good auto trans specialist might be able to diagnose it from a test; don't know if this trouble extends to the M35 or not but it is common on series 2/R34.

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Thanks for your replies. :rofl:

Andy: I am not sure if my situation is identical, although it does sound like we are having simmilar problems. I don't drive in tiptronic mode, so the car is stalling in D, but what you describe (in gear 2 or 3 the coming to a stop) does sound very much like what I am going through, although I don't know the exact gear I am in when I stall, it would appear that a sudden stop from a fair speed would cause the stall. I am hoping it is the spark plugs as my car is coming up 90K and I think I will take it in for a full service. Does anybody know that the complience work include a full service? I am inclined to say no from what I can figure out.

Dave: I truly hope it's not my transmission playing up, that sounds expensive.

Cheers.

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  • 2 weeks later...

Some more info for my still happening stalling problem, I have kinda found a pattern for it:

The stalling problem is much worse if:

1. The Air Con is OFF

and / or

2. The fuel level is low (last 15 litres left in tank)

What happens is when the car coming to a stop, or close to it, as the engien revs back to the normal idle Rev, it would occasionally "dip" below the idle, it would appear that then ECU then tries to pick the rev back up again when that happens. The car idles much lower however when the AC is off, so when the dip happens the car stalls before the engine can be brought back above idle. Low fuel level also causes it as well...

The car almost never stalls when the car have a good amount of fuel and the AC is on.

The fuel system have been flushed and so is the oil line.

I don't think it is the gearbox, but then I am not sure whatelse it could be...

Any ideas guys?

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Some more info for my still happening stalling problem, I have kinda found a pattern for it:

The stalling problem is much worse if:

1. The Air Con is OFF

and / or

2. The fuel level is low (last 15 litres left in tank)

What happens is when the car coming to a stop, or close to it, as the engien revs back to the normal idle Rev, it would occasionally "dip" below the idle, it would appear that then ECU then tries to pick the rev back up again when that happens. The car idles much lower however when the AC is off, so when the dip happens the car stalls before the engine can be brought back above idle. Low fuel level also causes it as well...

The car almost never stalls when the car have a good amount of fuel and the AC is on.

The fuel system have been flushed and so is the oil line.

I don't think it is the gearbox, but then I am not sure whatelse it could be...

Any ideas guys?

Have you had the plugs replaced at 80k? I was told that is when they are due.

My car is at 70K and is doing a similar thing but I have not related it to anything other than hard stops in 1 or 2 in manual mode.

I am pretty sure it will be the plugs but will see if I can wait the extra 10k.

I was told by Jetwreck that his cars performance improved when he replaced his plugs.

I had another odd stall the other day, the car turned all the electrics off and motor stopped as I stopped at some lights. It was like the computer or battery had a glitch and all power was lost. Has only done it the once in 1 year of owning so i will see what happens.

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ICV?? might need cleaning. my S15 did the same thing, sometimes stalled, i cleaned the idle control valve and it stopped happening.

when i do my plugs this weekend ill be removing everything that comes off the top of the motor and giving it a clean! hoping mine might run better too!

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ICV?? might need cleaning. my S15 did the same thing, sometimes stalled, i cleaned the idle control valve and it stopped happening.

when i do my plugs this weekend ill be removing everything that comes off the top of the motor and giving it a clean! hoping mine might run better too!

Night have to get you to show me where the ICV is?

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ill bring tools to remove the plastic cover off the engine!

ill also take some pics tomorrow while im doing it

im TRYING to get a copy of nissan FAST for M35, the guy at the dealer had one yesterday but wouldnt part with it. i almost offered him money for their 'spare' disc, but today ill ask if i can make an offsite backup :(

anyway, plugs at 80k huh?? mines got 90 now and i dont think they have been touched, i rekon thats half MY problem.

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ill bring tools to remove the plastic cover off the engine!

ill also take some pics tomorrow while im doing it

im TRYING to get a copy of nissan FAST for M35, the guy at the dealer had one yesterday but wouldnt part with it. i almost offered him money for their 'spare' disc, but today ill ask if i can make an offsite backup :(

anyway, plugs at 80k huh?? mines got 90 now and i dont think they have been touched, i rekon thats half MY problem.

don't worry about the FAST. I will sort that out for you.

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really? that would be MUCH appreciated, thanks!!

if not for the part numbers, but the diagrams would make things much easier to disassemble and re-assemble.

im happy to create a torrent for people here and host it at work. i mean on my personal internet at home... yes thats what i meant.

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guy's...just a quick one....mine used to stall when I first got it every now and again...new plugs defiantly stopped it.

Funny about what you are saying about the change in the car with a 1/4 of a tank.....i have noticed that as well.....mine goes like shit off a stick with only quarter of a tank :)

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thats because there is 60kg less weight in the back :)

also, as there is no TPS on the throttle (i think) so it cant be cleaned, i wonder if the sensor that controls the foot throttle input (maybe TPS also??) needs cleaning also?? there is probably a sensor on the actual throttle body too (another TPS??) unless the stepper motor on that is programmed and doesnt require input because its assumed to be correct

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I thought that about the weight of fuel in the tank as well.....but then again this is quite a big difference in power.....I don't remember feeling it in other cars I have owned.

I guess this is an excuse to go and do some more 0-100km/h testing....full tank and then empty. :)

Edited by Jetwreck
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there are some nissan part numbers in the M35 thread.

turns out they use a LFR6AP-9 but nissan supplied me with PLR6A-11 (apparently the same but 1.1mm gap - can be regapped) even after looking up THEIR part number and ordering that

so tomorrow ill find out if they are the correct ones when i do the swap.

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Guys I hope you get your problem sorted and it is just something cheap like plugs. On the question of TPS... isn't the M35/V35 fly-by-wire? If so the sensor's on the accelerator pedal and hopefully it's not prone to the breakdowns the old ones in the harsh engine bay conditions used to be...

Hsusy (OP513) that sounds so much like the problem I had... this bit...

What happens is when the car coming to a stop, or close to it, as the engien revs back to the normal idle Rev, it would occasionally "dip" below the idle, it would appear that then ECU then tries to pick the rev back up again when that happens.

I found that the idle was fine, I would stop, the idle was fine, then about a half a second later the revs would dip. Sometimes it would dip just a little, sometimes not at all... sometimes the car would stall completely.

The problem causing this on mine I think was the pressure regulator in the transmission and/or the stuffed shift solenoid A; a weird situation would result (Mike at MV explained it) and the transmission would go into like a 'change gear phase' and cut ignition I guess, and stall.

It made sense to me when I considered that everything else about the engine was running fine; no problems idling and it had just received its 100,000K service (plugs, oil, adjusted idle speed, belts, power steering, everything).

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ok looks like our engines DONT have an ICV. sounds reasonable with drive-by-wire the computer would just adjust the throttle to compensate for load.

anyway, did plugs today and cleaned my filthy throttle body. i have pictures if anyone wants me to post?? i remember reading somewhere that VQ25DET has 4 EGO sensors. looks like only 1, which is good news because thats cheaper than 4! unless there are 3 i couldnt find or are under the car. but there is only one heat coated set of wires running towards the back of the turbo.

as for the drive-by-wire throttle sensor, my engine bay was filthy, so this may be the cause of my engine stutter at low RPM and light throttle. the plugs didnt help with that :D

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