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Diagnosing OBDII code, could use some help 2003 C4S
Car has been running well up to today. Got in the car started it and the CEL came on. The car misfires under load but free revs without issue although I am detecting a slight misfire when at idle. Checked to see what codes were thrown and got four. P0300(multi cyl misfire), P301(cyl 1 misfire), P0303(cyl 3 misfire), P0305(cyl 5 misfire). Sounds like whatever controls cylinders 1, 3, and 5 is not happy. Any thoughts or suggestions? Don't have the Bentley service manual yet, but I guess its in my immediate future.
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Lorraine 83 SC CAB RoW
2003 C4S coupe
07 BMW R1200RT
76 BMW R90S
76 BMW R60/6
Last edited by wolds; 06-08-2016 at 02:40 PM..
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