lumpy

[leet5r]

why does my car run lumpy and want to stall when its cold .help needed cheers

[Niles]

Auot or manual? If its auto the it could be the MAF or the PNP switch. If its manual then the MAf, both could easily be a vacuum pipe or A big air hose leak.

[Alan M]

The IACVcan cause problems similar to your problem, so its worth checking that also. Make sure the connectors to the sensors are not damaged where the cable enters them from the loom.

[leet5r]

Auot or manual? If its auto the it could be the MAF or the PNP switch. If its manual then the MAf, both could easily be a vacuum pipe or A big air hose leak.

its a manual m8 its only just started like . its okay wen its warming up and at temp every thing seems fine also the car will not rev past 5.5 revs so was woundering if the air flow meter has gone like. as the engine management light s comes on for a few days then off for a few days . cheers

[leet5r]

The IACVcan cause problems similar to your problem, so its worth checking that also. Make sure the connectors to the sensors are not damaged where the cable enters them from the loom.

where abouts will this be on the car m8 as am only worked on the old fords lol .cheers

[Jod T5]

where abouts will this be on the car m8 as am only worked on the old fords lol .cheers
http://www.volvoforumsrepairs.org.uk/800Repairs/iac.htm

Jod

[leet5r]

http://www.volvoforumsrepairs.org.uk/800Repairs/iac.htm

Jod

thanks very help full indeed m8 i shall let you know how i get on lol. cheers lee

[leet5r]

http://www.volvoforumsrepairs.org.uk/800Repairs/iac.htm

Jod

i have cleaned the idle valve m8 and its still the same . still wants to cut out when its cold . ihave checked all th e boost hoses and all are on and i cant see anything else that would make it run like a bag of ****. its okay once its warm . it runs fine . am deprate now m8 lol

[Rob_ioClean]

Could it be the MAF?

[Niles]

Could it be the MAF?

VERY possible

[leet5r]

VERY possible

but it runs fine when its warm and when i disconact the maf it runs crap

[leet5r]

VERY possible

its runs okat once its warm. when i disconect the maf it runs crap and will not rev .

[AlanG]

That would suggest the MAF is doing it's job buddy.

[leet5r]

That would suggest the MAF is doing it's job buddy.

lol which is makin me thing its someting more serious lol cheers

[AlanG]

Bit flummoxed now mate. Points to a cold start system but only going on general knowledge as in the distant past I was a mechanic. Sorry I can't help you further.

[leet5r]

Bit flummoxed now mate. Points to a cold start system but only going on general knowledge as in the distant past I was a mechanic. Sorry I can't help you further.

its got me baffled now m8. i had a rs turbo that was the same , but they had a cold start valve. am at me wits end cos a know its a simple problem lol.

[Alan M]

Have you replaced the spark plugs and leads for genuine new items? If not your fault may lie there.

[leet5r]

Have you replaced the spark plugs and leads for genuine new items? If not your fault may lie there.

haha . i seem to have sorted it m8 lol. dont know what av done but its been fine the last 2 mornings . cheeers

[danny-R]

nice one mate, glad you sorted it.

[AlanG]

haha . i seem to have sorted it m8 lol. dont know what av done but its been fine the last 2 mornings . cheeers

Ominous buddy........intermittent faults are notoriously difficult to cure. Having said that,mine would refuse to start periodically. Cured itself months ago and been perfect ever since. Volvos eh? Lives of their own and don't you just love 'em..........:B_thumb:

[leet5r]

Ominous buddy........intermittent faults are notoriously difficult to cure. Having said that,mine would refuse to start periodically. Cured itself months ago and been perfect ever since. Volvos eh? Lives of their own and don't you just love 'em..........:B_thumb:

haha i shall let you know if it rears its daft head again lol

[Jod T5]

If the idle valve is good then the MAF is the likely suspect...Remove the maf plug and see how the car drives..It may stall but if it runs better with the plug off it means the Maf is poor...

Jod