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1990 240 question on codes 113 and 232 - ck engine light 200 1990

posted by  martnplyr on  Wed Jun 27 18:49 CST 2018
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last visit: Sat Sep 18 12:26 CST 2010
[RELATED]

Volvo will idle great then throw codes 113 and 232 and run rough. After a short rest it idles fine. This is the car I've had a problem with spontaneously dying. When I look at the codes I see possible reasons for 113 as O2 wiring fault and for 232 high fuel pressure or leaking injector. I've pulled the hose from the fuel pressure regulator. I haven't seen wetness but can smell a fuel smell. When I put a vacuum on that regulator connection it seems like I can hear the diaphragm move properly. When I blow into the hose I only get resistance. Two things:
1. not sure how to fully test the fpr
2. not sure how to proceed on possible O2 wiring fault.

Final point, I have noticed I can smell at the exhaust that the car is running rich.

Appreciate any info you might spare. thx. Mark






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