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1991 Ford F-150 XL 4.9L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Misfire, Poor Fuel Economy
yes a 91 f150 is whipping my butt so try not to laugh. this thing runs aweful. it keeps fuel fouling the number three spark plug. compression test running and static. 150 psi. comes up with a code for the iat sensor grounded. i have unplugged everthing that sh...
FIX posted 9/21/2010
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Related Documents & Media | VIN | 1FTDF15Y0M |
| Engine | 4.9 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Misfire, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| 112 | ECT indicated 250deg / circuit grounded |
Message Closed w/FIX
Vehicle Data
1991 Ford F-150 XL
| VIN | 1FTDF15Y0M |
| Engine | 4.9 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Stall, Misfire, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| 112 | ECT indicated 250deg / circuit grounded |
Video