Re: If the fuel pressure reglator fails? (archive)

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Re: If the fuel pressure reglator fails? (archive)

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Posted by Lloyd on March 26, 2000 at 11:30:03:

In Reply to: Re: If the fuel pressure reglator fails? posted by Nate on March 26, 2000 at 09:37:55:

I recently worked on a '78 733i in which the fuel pressure regulator failed, and we measured 70 psi at the rail.

I see your point though. I suppose it could fail and let all the pressure flow back to the tank.

The best thing to do before buying a new fuel pressure regualtor, is to measure the fuel pressure at the rail with a fuel pressure gauge.

-Lloyd-

: Lloyd,
: Are your sure about that? The FPR is at the end of the fuel rail and it has a return hose to the fuel tank. Therefore I would think that if it failed open, or if there were no FPR, the pressure would be near zero.

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Re: If the fuel pressure reglator fails? Nate 19:04 3/26/2000 (0)

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