Car hesitating -Lambda? - Page 2

bh883 · May 17th, 2009, 11:29

Forgive my ignorance but are the MAF sensor and Air Mass Meter one and the same? If not, should I replace both?

grass hopper · May 17th, 2009, 11:57

Hi,it is the same thing,it fits on the air filter inlet pipe after the air filter box.

bh883 · May 17th, 2009, 13:13

I've just tried running the engine with the connector to the AMM removed and, whilst the engine struggles to idle, it seems much smoother when revved - no hint of hesitation. When I plugged it back in the idling was better (still lumpy, of course) but the revving was hesitant again. Is this enough to suggest the MAF sensor/AMM is the culprit?

dgbalfour · May 17th, 2009, 20:34

Just to add a little more weight to the AMM argument, it sounds exactly like the symptoms I had when my AMM failed in my 1991 240.

I know they're not cheap, but it'll fix it!

David

radiomark · May 17th, 2009, 21:31

should be able to find a 2nd hand one on ebay.I got mine for £25.
Just make sure you get one with the same numbers.

bh883 · May 23rd, 2009, 17:40

A BIG thank you to EVERYONE for your help on this. It was the Air Mass Meter. I got a secondhand one off Ebay, as suggested and bingo: problem solved! My Volvo is a pleasure to drive again. Thanks again, Barrie

May 17th, 2009, 11:29	#11
bh883 New Member Last Online: Jul 12th, 2012 23:52 Join Date: May 2007 Location: Halifax	Forgive my ignorance but are the MAF sensor and Air Mass Meter one and the same? If not, should I replace both?

May 17th, 2009, 11:57	#12
grass hopper Premier Member Last Online: Mar 18th, 2011 13:38 Join Date: May 2009 Location: grassmere!	Hi,it is the same thing,it fits on the air filter inlet pipe after the air filter box.

May 17th, 2009, 13:13	#13
bh883 New Member Last Online: Jul 12th, 2012 23:52 Join Date: May 2007 Location: Halifax	I've just tried running the engine with the connector to the AMM removed and, whilst the engine struggles to idle, it seems much smoother when revved - no hint of hesitation. When I plugged it back in the idling was better (still lumpy, of course) but the revving was hesitant again. Is this enough to suggest the MAF sensor/AMM is the culprit?

May 17th, 2009, 20:34	#14
dgbalfour VOC Member Last Online: Today 18:14 Join Date: Jan 2006 Location: Bedford	Just to add a little more weight to the AMM argument, it sounds exactly like the symptoms I had when my AMM failed in my 1991 240. I know they're not cheap, but it'll fix it! David

May 17th, 2009, 21:31	#15
radiomark Senior Member Last Online: Mar 6th, 2020 14:24 Join Date: Feb 2006 Location: eastbourneish View Photos By: radiomark	should be able to find a 2nd hand one on ebay.I got mine for £25. Just make sure you get one with the same numbers.

May 23rd, 2009, 17:40	#16
bh883 New Member Last Online: Jul 12th, 2012 23:52 Join Date: May 2007 Location: Halifax	A BIG thank you to EVERYONE for your help on this. It was the Air Mass Meter. I got a secondhand one off Ebay, as suggested and bingo: problem solved! My Volvo is a pleasure to drive again. Thanks again, Barrie

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