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fpr bad?

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Old Apr 1, 2008 | 01:17 PM
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From: port ewen
fpr bad?
quick question...on my 87 t2 if i pinch the return line with my fingers on the fuel system and my idle eleveates and smooths out is my problem a bad fpr?
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Old Apr 1, 2008 | 07:03 PM
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From: oak park MI
why are you doing this?
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Old Apr 1, 2008 | 09:46 PM
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From: port ewen
to see if i have enough pressure being held in the rails
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Old Apr 1, 2008 | 11:04 PM
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From: oak park MI
I think not because you are not letting the unused fuel go back to the fuel tank so you are makeing the injectors use it all. I think that is what is going on here but im not sure.
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Old Apr 2, 2008 | 08:40 AM
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From: port ewen
lightly pinch....with figers not vicegripping the line off....just enough pressure to increase the pressure in the lines not cut them off
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Old Apr 2, 2008 | 08:57 AM
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If you pinch the return line, you are raising fuel pressure. The only way to test the regulator is with a fuel pressure gauge.

What are you trying to troubleshoot?
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