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1991 Ford Mustang LX 5.0L Poor Idle Quality, Stall
Mustang will stall, surge @ idle, "MIL" on with recurring code 66 (MAF ground fault), no diagnostics for this code in Alldata. Tried reman Motorcraft MAF sensor, no change. Someone has previously added a supplemental ground from MAF harness to radiator support...
FIX posted 7/29/2010
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Message Closed w/FIX
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9 Replies Received
9 Replies Received
Related Documents & Media | VIN | 1FACP44E8M |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | Fuel Injection |
| Emissions | Fed |
| Symptoms | Poor Idle Quality, Stall |
| Occurs | Intermittently |
Trouble Codes
| 66 | MAF ground circuit fault |
Message Closed w/FIX
Vehicle Data
1991 Ford Mustang LX
| VIN | 1FACP44E8M |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | Fuel Injection |
| Emissions | Fed |
| Symptoms | Poor Idle Quality, Stall |
| Occurs | Intermittently |
Trouble Codes
| 66 | MAF ground circuit fault |
Video