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flame trap and EGR 200 1990

posted by  confused_chris on  Wed Jun 15 11:37 CST 2005
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Howdy,

I'm still new to my 1990 240 DL, and I'm just learning its ropes. It's fun to work on a car with so much space under the hood, and it's great that there's such a big community of fellow Volvo owners out there. I've read everything I could find on this site and the internet, but am still left with a few questions. I've even got the Haynes manual, but it doesn't really show my engine type.

Can any other 1990 240 DL owner out there help me figure out exactly where my flame trap is, and what it looks like? I'm sure I need to clean/replace it, but I'm afraid I'll rip out the wrong hose and destroy something I shouldn't. What about cleaning the throttle body? What is that, and how do I do it? Someone here said that's good to do at the same as the flame trap, but I'm not sure how.

Also, how do I know if my engine has an EGR? I don't think it does, but anything is possible at this point. In 1990 they appear to have made engines
"with" and "without."

My car failed emmissions horrible, and I'm guessing fixing the flame trap along with replacintg the O2 sensor will make it ok (NOX is fine, just high CO and HC), but any other suggestions are appreciated.






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