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1988 Chevrolet S10 Blazer 4.3L Poor Idle Quality, Hesitation, MIL Lamp on
Hello, this is a strange one. It came in with poor performance and stalling. KOEO with the scan tool connected, it would randomly pulse the injectors and display numerous DTC's. The ecm was replaced with no change. The prom was replaced, along with the mod...
FIX posted 3/7/2000
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Message Closed w/FIX
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| VIN | 1GCDT19Z7J |
| Engine | 4.3 L / 6 cyl |
| Symptoms | Poor Idle Quality, Hesitation, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 42 | EST malfunction |
Message Closed w/FIX
Vehicle Data
1988 Chevrolet S10 Blazer
| VIN | 1GCDT19Z7J |
| Engine | 4.3 L / 6 cyl |
| Symptoms | Poor Idle Quality, Hesitation, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 42 | EST malfunction |
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