Floods on start/running rich

[anonymous1]

Hi,

For a month or so now, I have been have had an issue with starting the car. This is intermittent and as such I haven't paid it as much attention as I probably should've.

When I start the car it is normally fine and turns over quickly. However, every so often the revs will stay at around 12-1400 and the car will judder and in some cases cut back out. I've found this is due to the engine having flooded. Once running, it seems to continue to run rich with white smoke and a heavy smell of petrol from the exhaust.

I'm unsure of what would cause over fueling on start up and was wondering if anyone could point me in the right direction.

In the past I have changed the intake/exhaust gaskets, the throttle body gasket, the down pipe to mainfold gaskets. Replaced the elbow behind the MAF as this had a split. Others parts have been changed to, but these seem like the ones that could poss be linked to me? I did also change out the sparks last time it happened and disconnected the battery to allow the ECU to reset.

I have searched the forum, but only seem to note people having a problem with the car running rich in general and not so bad that the engine floods on start up.

Cheers in advance for any advice.

[Morgenster]

FPR or injectors unless you're flooring it when cranking.

[anonymous1]

FPR or injectors unless you're flooring it when cranking.

Hi,

Thanks for the reply, I forgot to mention I had changed the FPR and the hose that goes from it to under the intake.

I haven't replaced the injectors as yet, but have been considering doing so.

Also, I managed to get the codes read earlier today and it showed as being a faulty MAF, just looking into getting a replacement one. Stealer only wants £380.00ish, so may order 2 just in case one goes whilst I'm out and about!

Cheers again on the reply.

[whiskychaser]

White smoke is usually steam, not fuel - thats black. Are your plugs sooted up? Fast idle makes me think idle control valve. Sure that can be checked with a meter but my Bentleys is in a box somewhere :-( You can clean the MAF but most important is that the wire is intact. The wire glows when you switch off so just remove the airbox and have a look? You know what the code was?

[anonymous1]

Howdy,

MAF came today and fitted it before, car starts fine and doesn't seem to be running rich so far as the super strong smell of petrol has gone. Took it out on a small test drive before and it seems (probably in my head) to feel a bit smoother on accel and running. Got a 170 miles trip over the weekend, so that should hopefully give a better idea.

I'll still be checking the other sensors when I get a chance just in case.

Cheers for the help.

[e34.535i.sport]

Howdy,

MAF came today and fitted it before, car starts fine and doesn't seem to be running rich so far as the super strong smell of petrol has gone. Took it out on a small test drive before and it seems (probably in my head) to feel a bit smoother on accel and running. Got a 170 miles trip over the weekend, so that should hopefully give a better idea.

I'll still be checking the other sensors when I get a chance just in case.

Cheers for the help.

Glad it sorted it!!! Fingers crossed for the long temr fix... Now just for the trailing arm

[anonymous1]

Glad it sorted it!!! Fingers crossed for the long temr fix... Now just for the trailing arm

LOL! The trailing arm is looking like it'll be fun. Going to order new bolts and nuts tomorrow. Got to take off the collar nut from the wheel hub, which from Bentley is tighten to a worryingly low torque of 250Nm. Can't remember if the torque wrench even goes up to that? If not, then may have to consider a new one. Think you may see another thread popping up shortly about this one!

[e34.535i.sport]

LOL! The trailing arm is looking like it'll be fun. Going to order new bolts and nuts tomorrow. Got to take off the collar nut from the wheel hub, which from Bentley is tighten to a worryingly low torque of 250Nm. Can't remember if the torque wrench even goes up to that? If not, then may have to consider a new one. Think you may see another thread popping up shortly about this one!

Hmmm IIRC the torquey we got only does up to 200nm... If it were me I'd use that then swap to 'big breaky' and put a bit more on it!

On the bright side you only have that big one to remove in place of my six annoying little hex bolts! *Should* be a piece of p*ss mate.

[anonymous1]

Hmmm IIRC the torquey we got only does up to 200nm... If it were me I'd use that then swap to 'big breaky' and put a bit more on it!

On the bright side you only have that big one to remove in place of my six annoying little hex bolts! *Should* be a piece of p*ss mate.

LOL! I wish, I've got to disconnect it at the diff again... so time for me to try and get past that annoying cable tie again!!!

[e34.535i.sport]

LOL! I wish, I've got to disconnect it at the diff again... so time for me to try and get past that annoying cable tie again!!!

Wo strange - U gotta take the axle off altogether? I thought it woulda been a 'leave it hanging' job!

(Hey this is well quicker than text! LOL!)