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1990 240 engine code mystery 200

Hi all-

What is the likely problem if I'm getting a 1-1-3 code + check engine light. The diagnostic instructions here on BB (excellent) indicate that, assuming an LH 2.4 system, it's fuel rich/lean issue and/or faulty signal from O2 sensor. The other parts (TPS,AMM,RPM sensor,idle air control solenoid valve, carbon filter solenoid valve, cold start valve. . . what have I missed. . . all seem to check ok. The car has poor idle and poor low-rev throttle response (stumble) and, until really warm, is a little wimpy. No black smoke or other weird things... thanks for any thoughts.

bruce.






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New ANSWERED 1990 240 engine code mystery [200]
posted by  bthompso  on Sun Nov 6 16:00 CST 2011 >


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