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1993 Chevrolet S10 Blazer 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Poor Fuel Economy
This truck came to our shop for failed emmissions,it also has a code 33(map sensor or circuit to high) and code 43 EST module or sensor circuit problem. MIL light is not on all 3 spark plugs on right bank were fouled kv volts were about 2-3k. This truck ha...
FIX posted 4/26/1999
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| VIN | 1GNCC518W2 |
| Engine | 4.3 L / 6 cyl |
| Emissions | obd1 |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| 23 | manifold air temp to low |
| 32 | egr system problem |
| 42 | est problem |
| 44 | lean exhaust |
| 45 | rich exhaust |
| 51 | ecm prom error |
Message Closed w/FIX
Vehicle Data
1993 Chevrolet S10 Blazer
| VIN | 1GNCC518W2 |
| Engine | 4.3 L / 6 cyl |
| Emissions | obd1 |
| Symptoms | Excessive Emissions, Poor Idle Quality, Hesitation, Poor Fuel Economy |
| Occurs | Always |
Trouble Codes
| 23 | manifold air temp to low |
| 32 | egr system problem |
| 42 | est problem |
| 44 | lean exhaust |
| 45 | rich exhaust |
| 51 | ecm prom error |
Video