|
1992 Mercury Grand Marquis LS 4.6L Excessive Emissions, Hesitation, MIL Lamp on
Fault code 157. MAF low. Test showed B+ at terminal A, ground at terminal B, flat line on lab scope at terminal C, and a changing voltage at terminal D, with a change in RPM or air flow. These readings were taken at the MAF connector. MAF voltage on scan t...
FIX posted 3/9/2000
iATN Members:
Login to view full TechHelp request Auto Repair Pros: Join iATN to read this TechHelp request Vehicle Owners: Find a nearby iATN member to repair your vehicle
|
Message Closed w/FIX
|
Related Documents & Media 
| VIN | 2MELM75W7N |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / efi |
| Emissions | us |
| Symptoms | Excessive Emissions, Hesitation, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 157 | MAF Low |
Message Closed w/FIX
Vehicle Data
1992 Mercury Grand Marquis LS
| VIN | 2MELM75W7N |
| Engine | 4.6 L / 8 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI / efi |
| Emissions | us |
| Symptoms | Excessive Emissions, Hesitation, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 157 | MAF Low |
Video