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1987 Buick Skylark 2.5L MIL Lamp on
CAR TOWED IN WITH CODES 34 (MAP SENSOR) , 42 (EST) AND 45 (RICH EXHAUST) LOGGED IN COMPUTER AND CAR HAD NO POWER AT ANY ROAD SPEED. REPLACED MAP SENSOR AND CLEARED CODES. CAR NOW HAS NORMAL POWER BUT REPEATEDLY RESETS CODE 42 . TAP TEST OF ECU FOUND NO PROBLEM...
FIX posted 8/9/2000
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Message Closed
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| VIN | 1G4ND5149H |
| Engine | 2.5 L / 4 cyl |
| Emissions | CA |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 42 | elect spark timing malfunction |
Message Closed
Vehicle Data
1987 Buick Skylark
| VIN | 1G4ND5149H |
| Engine | 2.5 L / 4 cyl |
| Emissions | CA |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 42 | elect spark timing malfunction |