AboutRay Niemi Expertise ASE Master Rated. Ask any questions about Volvo models up to 2000. Runnability, starting and charging system, diagnostic codes, brakes, front end, where to get certain parts. Should I buy this Volvo or not? I will try to answer your question and give you the knowlege to make the best decision in your case.
Experience I started working on Volvo's in 1978 at the dealer and attended all the schools and achieved a Master rating. Since 1999 I have worked at independent shops and now own my own shop.
Organizations Alldata on line repair manuals. IATN network of techs.
ASE rating of Master.
Expert: Ray Niemi Date: 5/27/2008 Subject: 92 volvo 240 stalls
Question I have a 92 240 that will stall sometimes 2 or 3 times in an 1hr to an hr and half in between shopping at different stores.Also I get an engine light sometimes and sometimes it will go off on its own and when I pull up the code I always get code number (144),which can also help on the control unit if it could be bad. Fuel pumps replaced,relay replaced,fuel filter replaced,checked pressure regulator, fuses checked,but when I unplugged the air mass meter it stalled instead of surge and before I spend another penny on this car I want your opinon before i buy it.I know they say when you plug it in if it stalls but with me mine stalls unplugging it so i know you and many others(LOL) are saying duh what do think yeah replace it but I want to make sure what else besides the connector and continuity checks to check because you know this part is quite expensive so I'd appreciate all the help I can get.Thanks many,Will
Answer Will,
Looks like you have replaced all the things that cause stalling in the way of a failed part. Now have you also checked and made sure the throttle housing is clean? Could there be a vacuum leak around the intake manifold? When it stalls is there still power to the fuel pumps and correct pressure? Now the code you get indicates "load signal absent or faulty". Are all the wires good in the MAF connector? If and when you satisfy the above, I would try a known good MAF if possible, or just buy a used or rebuilt MAF.