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1991 Ford Mustang LX 2.3L Hesitation, MIL Lamp on, Loss of power
I performed pinpoint test H (fuel control) per shop manual on [...] and the results indicate the ECM is the culprit. I am very reluctant to replace an ECM unless I am 100% certain that will fix the problem. After driving on the freeway at 60 mph for about 5 mi...
FIX posted 4/20/2011
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Message Closed w/FIX
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Related Documents & Media | VIN | 1FACP40M8M |
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / EFI |
| Emissions | OBDI |
| Symptoms | Hesitation, MIL Lamp on, Loss of Power |
| Occurs | Hot, Cruise |
Trouble Codes
| 172 | O2 lack of switching lean |
Message Closed w/FIX
Vehicle Data
1991 Ford Mustang LX
| VIN | 1FACP40M8M |
| Engine | 2.3 L / 4 cyl / GAS |
| Trans | 5-speed Standard |
| Delivery | Fuel Injection / EFI |
| Emissions | OBDI |
| Symptoms | Hesitation, MIL Lamp on, Loss of Power |
| Occurs | Hot, Cruise |
Trouble Codes
| 172 | O2 lack of switching lean |
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