|
1985 Mercury Grand Marquis 5.0L Excessive Emissions, Poor Idle Quality, Poor Fuel Economy
Car came in running very bad. Tuned up complete. Plugs were new, but were black. Code 31 for egr and code 18 for ignition circuit. Replaced egr and evp. Cleared codes and only code 18 came back. Car runs rough at idle. Spark plugs are black again. Oxygen senso...
FIX posted 11/6/2000
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 | 2MEBP95F1F |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / cfi |
| Emissions | obd1 |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
| Occurs | Intermittently |
Trouble Codes
| 18 | ignition circuit |
Message Closed w/FIX
Vehicle Data
1985 Mercury Grand Marquis
| VIN | 2MEBP95F1F |
| Engine | 5.0 L / 8 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / cfi |
| Emissions | obd1 |
| Symptoms | Excessive Emissions, Poor Idle Quality, Poor Fuel Economy |
| Occurs | Intermittently |
Trouble Codes
| 18 | ignition circuit |
Video