2000 E150 rough idle. - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 1 (permalink) Old 10-15-2011, 11:34 AM Thread Starter
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2000 E150 rough idle.

Hey Guys,

One of our work vans has an odd problem. It idles rough but runs perfect at all other driving speeds. Codes indicate a lean condition and when I got to looking around with my diagnostic scanner, I find that the O2 sensors are not functioning at idle.

However, if I barely crack the throttle, they begin to work and the engine runs smoothly. Internet searching has pointed to an O2 sensor relay which I will check next time I get a chance.

Any other ideas?

Thanks for the help!

-Evan

2000 Ford F250, Merillion, 6sp, AIC, DPTuner, BB turbo, Adreneline pump, modified IDM.

1998 Mercedes E300, Custom injector nozzles, soon to have Eaton M90 supercharger, 7.5mm pump elements, Holset HX40 turbo and a full custom intake and exhaust system = 400HP from 3.0l
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