Stalling Question

[Easy Tiger]

Hi guys

My V35 has been running fine but occasionally gets a little rough idle/shudder. It has never stalled before but a couple of times I thought it might.

Tonight I turned it over and it started up fine, but then the revs dropped suddenly and it stalled - first time it has happened. I started the car again and it made a weird noise for about 1-2 seconds at most, and then it was good as gold again. Drove it home and had no more dramas. No warning lights have shown up, nothing.

Anyone got any ideas what it might be? Could it be dodgy fuel?

Cheers.

Edited June 26, 2009 by Easy Tiger

[FoxV35]

engine oil? wat engine oil u using?

[dannyw]

i had same problem, it's like everything i start the car(not at cold) the car will start, idle rev drop and stall.. I 'fixed' this problem by every time i start the engine, i rev it a little(just a little!!). After 1 month, i stop and the problem is gone

[zei20l]

throttle body might be dirty and needs a clean. AFAIK there are no ICV on VQ motors due to drive-by-wire. also try cleaning the AFM, maybe the plugs are old too and might need changing.....

also check for airleaks, might be a vacuum hose thats come off somewhere

[Easy Tiger]

Just thought I would let you all know that I think I have found the problem. Got my spark plugs pulled out and checked when getting a service done on the weekend and found oil pooling around two of the plugs. Need to get two new rocker cover seals installed and replace the two spark plugs which were only replaced 16k ago.

I highly recommend if you haven't checked yours to have a look.. it is a common problem as per below.

http://g35driver.com/forums/g35-sedan-v35-...arranty-up.html

My engine light turned off almost immediately after cleaning the plugs out and the rough idle is gone.. anyone who has seen a couple of my posts will remember I have had that issue coming on and off for a while now.

[worldwalker]

I had the EXACT same problem with mine. Its caused by a battery dieing slowly or a battery reset etc.

For some reason you need to clean the throttle body and MAF (mass airflow meter), no matter how clean they appear, for any of this to work. So I'd say do that first and see how it goes. If it fails then go through the next 2. (I didn't remove my TB I just cleaned it on the car using nulon carby cleaner)

Replace the battery.

Then go through the ECU reset. (I dont have the link but jsut type it into google and you'll find it)

It involves depressing the throttle and turning the ignition in a set sequence to a certain timing. Be as accurate as possible counting will not work you MUST use a stop watch I'd recomend using a clock with texter marks around the outside with 1 2 3... writen around the outside in order of the times; each sequence takes about 45 seconds to complete and you need to do different sequences to reset the ECU, the throttle possition and the cold idle sensor.

Once its done you'll be sweet! I did mine in the wrong order and still starts and runs fine now.