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1989 Pontiac Grand Prix 2.8L Poor Idle Quality
Replaced 6 injectors, because 4 was at 8 to 10 ohms. Replaced PCM with no change. Fuel pressure has dead head pressure of 60 psi Cylinder compression 160-175 psi No vacuum leaks found at all Performed cylinder vacuum test to check for intake manifold leak....
FIX posted 11/6/1999
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Message Closed w/FIX
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| VIN | [No VIN Available] |
| Engine | 2.8 L / 6 cyl |
| Emissions | Federal |
| Symptoms | Poor Idle Quality |
| Occurs | Idle, Intermittently |
Trouble Codes
| 44 | Lean Exhaust |
Message Closed w/FIX
Vehicle Data
1989 Pontiac Grand Prix
| VIN | [No VIN Available] |
| Engine | 2.8 L / 6 cyl |
| Emissions | Federal |
| Symptoms | Poor Idle Quality |
| Occurs | Idle, Intermittently |
Trouble Codes
| 44 | Lean Exhaust |
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