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1995 Oldsmobile 98 Regency Elite 3.8L MIL Lamp on
Code 623 (P1623). Replaced PCM with OEM ([...]). Replaced EPROM with [...]. Samething. No driveability problems. MIL comes on with 623 after a few min. of idle. The PROM I took out was a (1621)7619. Dealer gave me a (1621)5799 EPROM as an update? Samething. Tr...
FIX posted 11/1/2006
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Message Closed w/FIX
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6 Replies Received
6 Replies Received
Related Documents & Media | VIN | 1G3CX52KX4 |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | Not OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 623 | prom error |
Message Closed w/FIX
Vehicle Data
1995 Oldsmobile 98 Regency Elite
| VIN | 1G3CX52KX4 |
| Engine | 3.8 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | Not OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 623 | prom error |
Video