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1986 Jaguar Vanden Plas 4.2L Poor Idle Quality, Poor Fuel Economy, runs pig rich
Hey Jag techs, I found that there's no fuel return going back to the tank, if I disconnect the return line it runs fine, I tee connected a pressure gauge on the return line and it builds pressure (45+) then the motor starts running pig rich. Can anyone help me...
FIX posted 11/11/2012
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Related Documents & Media | VIN | SAJAY1345G |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | Fuel Injection / sefi |
| Emissions | us fed emissions |
| Symptoms | Poor Idle Quality, Poor Fuel Economy, Runs Pig Rich |
| Occurs | Always |
Message Closed w/FIX
Vehicle Data
1986 Jaguar Vanden Plas
| VIN | SAJAY1345G |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 3-speed Automatic |
| Delivery | Fuel Injection / sefi |
| Emissions | us fed emissions |
| Symptoms | Poor Idle Quality, Poor Fuel Economy, Runs Pig Rich |
| Occurs | Always |
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