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1990 Chevrolet Corvette ZR-1 5.7L Cuts out
This vette is having problems with the port throttle system. At times it will work ok but most times it will limit engine power to below 4k rpm. I have had the intake off a couple of times and all systems seem to check out, no vacuum leaks vacuum pump work...
FIX posted 8/9/2019
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12 Replies Received
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Related Documents & Media | VIN | 1G1YZ23J5L |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 6-speed Standard |
| Delivery | Fuel Injection / multi port 16 injectors |
| Emissions | obd1 |
| Symptoms | Cuts Out |
| Occurs | Always |
Trouble Codes
| 61 | Port throttle system error |
Message Closed
Vehicle Data
1990 Chevrolet Corvette ZR-1
| VIN | 1G1YZ23J5L |
| Engine | 5.7 L / 8 cyl / GAS |
| Trans | 6-speed Standard |
| Delivery | Fuel Injection / multi port 16 injectors |
| Emissions | obd1 |
| Symptoms | Cuts Out |
| Occurs | Always |
Trouble Codes
| 61 | Port throttle system error |
Video