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1990 Ford Mustang 2.3L Excessive Emissions, Poor Fuel Economy, MIL Lamp on, Runs very rich
Help PLEEAASE!! I took on this job for a friend that works in another shop, and he gave up. This thing runs very rich all the time. Fuel-pressure at spec. I hooked up the break-out box and checked everything. Powers and grounds, VREF at 5V. Coolant- and AC...
FIX posted 2/22/2001
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| VIN | 1FACP4DA2L |
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / EFI (Non-Turbo, with MAP) |
| Emissions | Federal |
| Symptoms | Excessive Emissions, Poor Fuel Economy, MIL Lamp on, Runs Very Rich |
| Occurs | Always |
| Misc. | Calib. 8-06A-R10 |
Trouble Codes
| 42 | O2 rich or high voltage |
Message Closed
Vehicle Data
1990 Ford Mustang
| VIN | 1FACP4DA2L |
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / EFI (Non-Turbo, with MAP) |
| Emissions | Federal |
| Symptoms | Excessive Emissions, Poor Fuel Economy, MIL Lamp on, Runs Very Rich |
| Occurs | Always |
| Misc. | Calib. 8-06A-R10 |
Trouble Codes
| 42 | O2 rich or high voltage |
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