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1988 Lincoln Town Car 5.0L Poor Idle Quality, Surge, Stall
OH great Ford gurus. Called Identifix. They suggested repairing 175 mv on ground of sensors. I reduced to 60 mv or so. No change. Previous mechanic swapped out isc no change. I cleared all codes and only code 34 is hard and returns right away then after ru...
Summary posted 11/15/2000
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| VIN | 1LNBM82F9J |
| Engine | 5.0 L / 8 cyl |
| Emissions | CA Emissions |
| Symptoms | Poor Idle Quality, Surge, Stall |
| Occurs | Always, Idle |
Trouble Codes
| 12 | cannot raise idle rpm |
| 21 | ect out of range |
| 34 | evp closed signal too high |
| 41 | O2 lean |
| 74 | BOO open during self test |
| 91 | left O2 lean or not switching |
Message Closed w/Summary
Vehicle Data
1988 Lincoln Town Car
| VIN | 1LNBM82F9J |
| Engine | 5.0 L / 8 cyl |
| Emissions | CA Emissions |
| Symptoms | Poor Idle Quality, Surge, Stall |
| Occurs | Always, Idle |
Trouble Codes
| 12 | cannot raise idle rpm |
| 21 | ect out of range |
| 34 | evp closed signal too high |
| 41 | O2 lean |
| 74 | BOO open during self test |
| 91 | left O2 lean or not switching |
Video