My '02 3400 is running really rich and has a rough idle. I am not getting any error codes on the car. Seams to be fine under wot applications. Any ideas?
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pull the vacuum line off the top of the FPR and see if fuel shoots out.
you may also need to pull the plenum and test the injectors with a multimeter. they should all be around 12 ohms or so. -
I am running injectors/rail and FPR from a 98 3400 will the ohm's be different on the earlier injectors? What fuel pressure should I see with the older regulator 45psi?Comment
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tell them more about your setup, it will help diagnose the issue.Comment
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