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1990 Chev/GMC Truck G30 7.4L Poor Idle Quality, Stall
tHE ENGINE SEEMS TO RUN LEAN upon start up. the block learn starts at 135 then creaps up to 155 . the idle surges upon start up and will die unless you give it some gas untill the block learn gets to 155. then the o/2 will start to switch. Injectors ohm at 1.3...
FIX posted 8/17/1998
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Message Closed
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| VIN | 2GAGG39N7L |
| Engine | 7.4 L / 8 cyl |
| Emissions | OBD1 CALIF |
| Symptoms | Poor Idle Quality, Stall |
| Occurs | After a Hot Soak |
| Misc. | 15 Passenger Van |
Message Closed
Vehicle Data
1990 Chev/GMC Truck G30
| VIN | 2GAGG39N7L |
| Engine | 7.4 L / 8 cyl |
| Emissions | OBD1 CALIF |
| Symptoms | Poor Idle Quality, Stall |
| Occurs | After a Hot Soak |
| Misc. | 15 Passenger Van |
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