Lean Mixture/ 2 ECU Codes, Low Mi & Power - Saab 9000 Bulletin Board - Saabnet.com
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Lean Mixture/ 2 ECU Codes, Low Mi & Power
Posted by Dave [Email] (more from Dave) on Sat, 12 Jul 2003 18:17:57
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1989 9000CD Turbo with B202 Motor & LH 2.4 FI:
Problem is low power and milage. Boost is still good. Suffers from what could be called excessive "Turbo Lag" and very doggy acceleration from intersection. I have check plugs, timing, vacuum leaks, etc., and also verifiied O2 sensor output, and it read about .54 volts. I checked the ELCD for vacuum leaks and it is OK.
I have been able to retrieve 2 codes from the ECU. They are 12111 and 12112, both of which point at an incorrect fuel mixture, and that is exactly what it drives like. I have replaced the fuel filter and done a capacity check on the pump and it is fine.
Any ideas? Maybe FPR or injectors? How do I check them?
Dave
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