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1990 Ford Aerostar 3.0L Excessive Emissions
Hi Group- This Aerostar is failing smog inspections, and irritating me to no end. It runs at 8-12%CO at cruise, and 2-5% CO at idle. As shown in the related testing, sensors are working, indicating a rich condition, but not showing why it's rich. I'...
FIX posted 3/21/2000
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Message Closed w/FIX
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| VIN | 1FMDA31U2L |
| Engine | 3.0 L / 6 cyl |
| Emissions | Calif |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Trouble Codes
| 13 | idle rpm out of spec |
| 42 | EGO indicates rich exhaust |
Message Closed w/FIX
Vehicle Data
1990 Ford Aerostar
| VIN | 1FMDA31U2L |
| Engine | 3.0 L / 6 cyl |
| Emissions | Calif |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Trouble Codes
| 13 | idle rpm out of spec |
| 42 | EGO indicates rich exhaust |
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