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How does a FPR usually fail?

posted by  Will740turbo on  Wed Nov 17 20:38 CST 2010
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last visit: Wed Oct 22 16:09 CST 2014
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How did you know the old one failed? Is the fuel smell fresh?

Usually they fail by giving the injectors full pressure all the time. Often they leak large quantities of fuel out the vacuum port.
What if you put the old one back on? Could the vacuum line be leaking and simply pulling low vacuum?

If I recall correctly, higher voltage means more oxygen present.
Can you measure the fuel pressure?
--
1990 740 Turbo, on its way to stock specs, maybe beyond






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New How does a FPR usually fail?
posted by  calvinmor  on Wed Nov 17 17:03 CST 2010 >


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