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1987 Chevrolet R20 Suburban Custom Deluxe 5.7L Poor Idle Quality, Hesitation, Surge
Hi, I need help on this truck. I try to fix the truck for 2 weeks but it still the same problem. It hesitates when accelerate, O2 is lean at idle ( under 100mv), backfire on deaccelerate blocklearn is go all the way up 154- 165 count. One thing I know is t...
FIX posted 5/22/1999
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| VIN | 1GNGR26K9H |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / TBI |
| Emissions | FED EMISSION |
| Symptoms | Poor Idle Quality, Hesitation, Surge |
| Occurs | On Accel |
Trouble Codes
| 44 | lean exhaust |
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Vehicle Data
1987 Chevrolet R20 Suburban Custom Deluxe
| VIN | 1GNGR26K9H |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | FI / TBI |
| Emissions | FED EMISSION |
| Symptoms | Poor Idle Quality, Hesitation, Surge |
| Occurs | On Accel |
Trouble Codes
| 44 | lean exhaust |
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