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1987 Chevrolet Astro 4.3L Poor Idle Quality, Hesitation, Cuts out, Stall
started out idle problem was intermittent with eng. hot. over the past couple of months. then it started happening more regularly. codes 33 and 34 have been getting set. checked voltages, wiring, replaced map sensor and exchanged ecm. it does seem to help idle...
FIX posted 8/24/2004
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Related Documents & Media | VIN | 1GCDM15Z1H |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | US FED |
| Symptoms | Poor Idle Quality, Hesitation, Cuts Out, Stall |
| Occurs | Cold, Hot, on Accel, Idle |
Trouble Codes
| 33 | map sensor high voltage |
| 34 | map sensor low voltage |
Message Closed w/FIX
Vehicle Data
1987 Chevrolet Astro
| VIN | 1GCDM15Z1H |
| Engine | 4.3 L / 6 cyl / GAS |
| Trans | 4-speed Automatic |
| Delivery | FI / TBI |
| Emissions | US FED |
| Symptoms | Poor Idle Quality, Hesitation, Cuts Out, Stall |
| Occurs | Cold, Hot, on Accel, Idle |
Trouble Codes
| 33 | map sensor high voltage |
| 34 | map sensor low voltage |
Video