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1990 Chevrolet Optima 2.0L Excessive Emissions, Poor Fuel Economy, rpm limited, high HC
This car will not hold a load above 3500rpm, and surges between there and 5000, particularly when in passing gear or hard accel. I have checked TPS,MAP,ECT,INJ,fuel pressure ([...]). the [...] apears to be good pattern [...], FT cell 1, If I snap throttle ...
FIX posted 12/15/1999
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Message Closed
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| VIN | 1LL7TN51KO |
| Engine | 2.0 L / 4 cyl |
| Emissions | Can.fed. |
| Symptoms | Excessive Emissions, Poor Fuel Economy, RPM Limited, High Hc |
| Occurs | Always, Under Load, on Accel, at 3500+ RPM |
| Misc. | Prom 3729 |
Message Closed
Vehicle Data
1990 Chevrolet Optima
| VIN | 1LL7TN51KO |
| Engine | 2.0 L / 4 cyl |
| Emissions | Can.fed. |
| Symptoms | Excessive Emissions, Poor Fuel Economy, RPM Limited, High Hc |
| Occurs | Always, Under Load, on Accel, at 3500+ RPM |
| Misc. | Prom 3729 |
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