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Ported EFI problem [message #238900] Wed, 05 February 2014 15:58 Go to previous message
Bobby Lee is currently offline  Bobby Lee   United States
Messages: 27
Registered: September 2008
Location: Austin, TX
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Junior Member
1978 Royale coach came with a "Digital Fuel Injection Inc" for a tuned port injected engine on a 403. There are two electric fuel pumps, one centered on a frame cross piece and the other on driver side rail. Manual says system operates at pressures up to 50 psi.
Symptoms are cranks but will not start. At other times starts immediately. Oddly enough when jacked up on driver side, starts right away. Guys at rally said jack it up and start it every time! Very Happy John Sharpe is helping me to fix the problem, but, if anyone has a similar system, would appreciate input. Thanks

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