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1991 240 recent engine replacement. Uses too much fuel and idles rough. Thus far have changed following : MAF , ECT sensors , ECM fuel module and the fuel pressure regulator. No improvement. Cant seem to find any vacum leaks. Any suggestions?? Been trying to find the malfunction for some time and it's frustrating. I also detect odor of gas in oil??
 

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Re: 240 fuel problems (samuel58)

Moderators please move this post.
 

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1991 240 recent engine replacement. Uses too much fuel and idles rough. Thus far have changed following : MAF , ECT sensors , ECM fuel module and the fuel pressure regulator. No improvement. Cant seem to find any vacum leaks. Any suggestions?? Been trying to find the malfunction for some time and it's frustrating. I also detect odor of gas in oil??
Could be a vacc line has crack that you can't see ,if their hard and break when you bend,replace,also check solenoid that recirculates unused fuel,also check pcv system
 
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