TwinTurbo.NET: Nissan 300ZX forum - It sounds like fuel is collecting in the plenum. The two
Subject
It sounds like fuel is collecting in the plenum. The two
Posted by
SirpriZ
on March 26, 2015 at 10:20 AM
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In Reply To
MYSTERY Liquid atop my valves.. any ideas?????
posted by LivinTheDream
on March 25, 2015 at 10:43 PM
Message
possible sources are the FPR or fuel dampener. They go bad by developing tears in the diaphragm, fuel is sucked into the plenum, and the car runs rich. Seems to fit your symptoms.
Follow Ups
MYSTERY Liquid atop my valves.. any ideas?????
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LivinTheDream
22:43:35 03/25/15
I would do a leakdown test
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-Grimm-
09:44:30 03/26/15
PCV valves deleted. Plenum is spotless. (n/m)
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LivinTheDream
12:29:43 03/26/15
It sounds like fuel is collecting in the plenum. The two -
SirpriZ
10:20:11 03/26/15
FPR and Dampener are brand new. Just sayin. Could b bad luck
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LivinTheDream
12:31:20 03/26/15
Nuts. Chances are they are not the problem then. I assume
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SirpriZ
13:06:46 03/26/15
Doesnt smell like gas really. fuel pressure is good.
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LivinTheDream
17:01:35 03/26/15
Pressure tested the coolant system. Holds perfect.
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LivinTheDream
21:20:55 03/26/15
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