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1996 Chevrolet Astro 4.3L MIL Lamp on
runs fine, check eng lt [...] 172,175. long term & short term fuel trims drop from 128 till code sets, sometimes taking a couple of trips to set. o2 sensors switch. when pcv pulled out of valve cover,and allow pcv to pull fresh air, fuel trim climbs. when hold...
Summary posted 7/6/2002
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Message Closed w/Summary
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| VIN | 1GNDM19W1T |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| 172 | system too rich bank1 |
| 175 | system too rich bank 2 |
Message Closed w/Summary
Vehicle Data
1996 Chevrolet Astro
| VIN | 1GNDM19W1T |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | FI |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Intermittently |
Trouble Codes
| 172 | system too rich bank1 |
| 175 | system too rich bank 2 |
9 Replies Received
9 Replies Received
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