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1994 Ford F-150 XL 4.9L Excessive Emissions
This thing is failing the emissions test for CO and HC. Hot, idle it runs at 9-10% and 1900ppm HC. When first started, computer tries to lean it out, but never gets below 3.5% CO. Watching pulse width it runs down to 5.3 ms before the computer gives up and goe...
FIX posted 4/6/2004
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Message Closed w/FIX
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14 Replies Received
14 Replies Received
Related Documents & Media | VIN | 1FTEF14Y2R |
| Engine | 4.9 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / MFI |
| Emissions | US Fed |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Trouble Codes
| 173 | HO2S indicates rich |
Message Closed w/FIX
Vehicle Data
1994 Ford F-150 XL
| VIN | 1FTEF14Y2R |
| Engine | 4.9 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / MFI |
| Emissions | US Fed |
| Symptoms | Excessive Emissions |
| Occurs | Always |
Trouble Codes
| 173 | HO2S indicates rich |
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