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1986 Chevrolet Corvette 5.7L Surge, bucks,spark knock
vacuum leak was repaired at manifold, o2 jumps now, replaced tps and set at .54V, fuel filter good, cap & rotor good,plugs look good, pulled injs one by one each cyl drops 100 rpms, new inj o-rings at manifold, ohm test injs 15.6-16.2 each, fuel pressure 4...
FIX posted 10/25/1998
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| VIN | 1G1YY678XG |
| Engine | 5.7 L / 8 cyl |
| Emissions | US Fed |
| Symptoms | Surge, Bucks,Spark Knock |
| Occurs | Always, Under Load, on Accel, Above 2700 RPM |
| Misc. | Converitble |
Trouble Codes
| 21 | tps circuit volt high |
| 44 | lean exaust |
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Vehicle Data
1986 Chevrolet Corvette
| VIN | 1G1YY678XG |
| Engine | 5.7 L / 8 cyl |
| Emissions | US Fed |
| Symptoms | Surge, Bucks,Spark Knock |
| Occurs | Always, Under Load, on Accel, Above 2700 RPM |
| Misc. | Converitble |
Trouble Codes
| 21 | tps circuit volt high |
| 44 | lean exaust |
Video