Running rich

g916 · Feb 16th, 2015, 18:20

My 92 240 has started smoking,and is there's a distinct smell of fuel from the rear. Is it running rich,any ideas?

classicswede · Feb 17th, 2015, 12:34

has the lambda light come on at all? Have you checked for fault codes?

g916 · Feb 19th, 2015, 08:29

No lights on,ill have to take it to the garage when I can,just wondered if there was anything I could check myself.

JackDaniels · Feb 19th, 2015, 09:30

you can check the spark plugs youself,if they are black then its running too rich,also check the exhaust pipe to see if its black on the inside too.

g916 · Apr 15th, 2015, 18:41

The exhaust is black,and there's regularly a smell of fuel,not checked where from yet. If it's running rich is it a garage job?

Volvodrivingbiker · Apr 26th, 2015, 08:25

had a similar thing at MOT time as the car sat warming up i noticed wisps of grey smoke and because the car was running inside a garage I could smell rich mixture ( wouldn't say fuel though) I knew it was going to struggle with emissions test .

although if I'm not mistaken emissions test doesn't apply to pre cat cars and early cat upto 93 please correct me if I'm wrong .

but as g916 asked is there any adjustments can be made to the fueling these fuel injected motors ?

hennabm · Apr 26th, 2015, 11:54

Quote:

Originally Posted by Volvodrivingbiker

.

although if I'm not mistaken emissions test doesn't apply to pre cat cars and early cat upto 93 please correct me if I'm wrong .

?

Emission tests by meter are done on vehicles post 75 with the limits as shown below

http://www.motinfo.gov.uk/htdocs/m4s07000306.htm

92 onward are shown below;

http://www.motinfo.gov.uk/htdocs/m4s07000309.htm

02 onwards

http://www.motinfo.gov.uk/htdocs/m4s07000311.htm

HTH

mad matt · Apr 26th, 2015, 12:02

Have you checked it's not leaking fuel as I had the rubber hose go on mine between the tank and main pump

Dirty Rooster · Apr 26th, 2015, 15:15

Do you have an O2 (Lambda) sensor on your exhaust system,
usually on the downpipe.
Do you have a CAT?

When I had a failing O2 sensor I smelt fuel, it ran rich, mileage was awful and the exhaust looked very sooty.

g916 · Apr 26th, 2015, 19:53

It passed its emissions ok,but I was too the,exhaust is leaking in various places,yes,it has a cat.

Feb 16th, 2015, 18:20	#1
g916 Member Last Online: Jul 20th, 2017 00:02 Join Date: Mar 2014 Location: east lothian	Running rich My 92 240 has started smoking,and is there's a distinct smell of fuel from the rear. Is it running rich,any ideas?

Feb 17th, 2015, 12:34	#2
classicswede Trader Volvo in my veins Last Online: Yesterday 20:52 Join Date: Dec 2004 Location: Anglesey	has the lambda light come on at all? Have you checked for fault codes? __________________ http://www.classicswede.org www.classicswede.co.uk

Apr 26th, 2015, 08:25	#6
Volvodrivingbiker Member Last Online: Oct 31st, 2015 15:11 Join Date: Jun 2013 Location: east yorks	had a similar thing at MOT time as the car sat warming up i noticed wisps of grey smoke and because the car was running inside a garage I could smell rich mixture ( wouldn't say fuel though) I knew it was going to struggle with emissions test . although if I'm not mistaken emissions test doesn't apply to pre cat cars and early cat upto 93 please correct me if I'm wrong . but as g916 asked is there any adjustments can be made to the fueling these fuel injected motors ? __________________ Old Blue Brick Think Bike !

Apr 26th, 2015, 15:15	#9
Dirty Rooster Premier Member Last Online: Nov 23rd, 2023 14:26 Join Date: Jun 2014 Location: Haltwhistle	Do you have an O2 (Lambda) sensor on your exhaust system, usually on the downpipe. Do you have a CAT? When I had a failing O2 sensor I smelt fuel, it ran rich, mileage was awful and the exhaust looked very sooty. __________________ 1993 2.0 Turbo SE with 1991 2.0 Turbo engine. Older is better!

Feb 19th, 2015, 08:29	#3
g916 Member Last Online: Jul 20th, 2017 00:02 Join Date: Mar 2014 Location: east lothian	No lights on,ill have to take it to the garage when I can,just wondered if there was anything I could check myself.

Feb 19th, 2015, 09:30	#4
JackDaniels I've Been Banned Last Online: Sep 15th, 2015 07:53 Join Date: Mar 2014 Location: The Wirral Peninsular	you can check the spark plugs youself,if they are black then its running too rich,also check the exhaust pipe to see if its black on the inside too.

Apr 15th, 2015, 18:41	#5
g916 Member Last Online: Jul 20th, 2017 00:02 Join Date: Mar 2014 Location: east lothian	The exhaust is black,and there's regularly a smell of fuel,not checked where from yet. If it's running rich is it a garage job?

Apr 26th, 2015, 12:02	#8
mad matt Senior Member Last Online: Jul 12th, 2023 21:10 Join Date: Jun 2009 Location: amlwch	Have you checked it's not leaking fuel as I had the rubber hose go on mine between the tank and main pump

Apr 26th, 2015, 19:53	#10
g916 Member Last Online: Jul 20th, 2017 00:02 Join Date: Mar 2014 Location: east lothian	It passed its emissions ok,but I was too the,exhaust is leaking in various places,yes,it has a cat.

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