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1997 Ford aerostar 4.0L MIL Lamp on, case ground voltage
Have this aerostar that has me stumped. I am getting these O2 not switching or lean bank codes. They are setting when the data stream looks OK. A new clue that is now showing on my Snappy scanner is the case ground voltage at -2.3 to -2.9 volts. Can I have...
FIX posted 1/8/2000
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Message Closed w/FIX
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Related Documents & Media | VIN | 1FMDA31X9V |
| Engine | 4.0 L / 6 cyl |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp on, Case Ground Voltage |
| Occurs | Every 2 to 100 Miles |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Message Closed w/FIX
Vehicle Data
1997 Ford aerostar
| VIN | 1FMDA31X9V |
| Engine | 4.0 L / 6 cyl |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp on, Case Ground Voltage |
| Occurs | Every 2 to 100 Miles |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0174 | Fuel System Too Lean (Bank 2) |
Video