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1994 Chev/GMC Truck G20 van 4.3L MIL
MIL comes on while driving; after van has been driven on highway 30mi or more. MAP: good TPS: no glitch CTS: in spec. evaporative emission controls: ok O2: new BLM will go down to about 108 if i raise idle to 2500rpm, however if i unplug EGR valve BLM g...
FIX posted 7/14/1999
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Message Closed w/FIX
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| VIN | [No VIN Available] |
| Engine | 4.3 L / 6 cyl |
| Emissions | Not OBD-II Compliant |
| Symptoms | MIL |
| Occurs | Intermittently |
| Misc. | DTC 45 |
Trouble Codes
| 45 | rich exhaust detected after 60 sec of rich signal from O2 sensor while trottle angle is greater than 5 |
Message Closed w/FIX
Vehicle Data
1994 Chev/GMC Truck G20 van
| VIN | [No VIN Available] |
| Engine | 4.3 L / 6 cyl |
| Emissions | Not OBD-II Compliant |
| Symptoms | MIL |
| Occurs | Intermittently |
| Misc. | DTC 45 |
Trouble Codes
| 45 | rich exhaust detected after 60 sec of rich signal from O2 sensor while trottle angle is greater than 5 |
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