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red1977 06-14-2009 03:05 PM

2.5 running rough
ok i have gave it a tune up ran sea foam threw it but it idles really rough and is running really rich has black smoke in the exhaust i'm running out of ideas to look for i'm not gas guy i'm a diesel guy. and help would be appreciated

dooder 06-14-2009 04:37 PM

there are two main sensors on speed density systems, throttle position switch and map sensor either can cause rich condition. running rough as in misfire? check vacuum lines.

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