Single Turbo RX-7's Questions about all aspects of single turbo setups.

What could be wrong??

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Old Nov 4, 2008 | 09:05 AM
  #1  
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ninja
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What could be wrong??

Lately my car has been acting up. At about 3k rpm it sputters a little. It's not like the 3k rpm hesitation thing b/c my first FD had it so I know it's not it. Another thing is that my fuel pressure guage isn't reading correctly. It's moving up and down crazily so I can't monitor my fuel pressure. The gauge on my fuel pressure regulator is dead so I can't monitor it from their either. What would be the ideal fuel pressure at idle? WOT?

Thanks for any help.
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Old Nov 4, 2008 | 12:06 PM
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when last did you change your filter(s)?
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Old Nov 4, 2008 | 12:15 PM
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with that description, it could be anything.
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Old Nov 4, 2008 | 02:57 PM
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apeiron
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You answered your own question in your description. If your fuel pressure gauge is being sporadic and all over the place then there is a breach in the fuel system that is causing it to depressurize.

I would go into your trunk, pull out the fuel pump and check where the fuel pump mates up with the metal pipe. If yours is still connected stock (using an O-ring to seal), try getting some hose and connecting both ends and clamping it down.
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Old Nov 4, 2008 | 03:50 PM
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idle = 38-40psi
then 1:1
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Old Nov 4, 2008 | 04:30 PM
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From: look behind you
Check filter, check pump as well as voltage to it, check lines, if possible, swap in another regulator they can go bad as well.
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Old Nov 4, 2008 | 04:38 PM
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From: cold
he could also have a bad fuel pressure sender or bad wiring...
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Old Nov 4, 2008 | 04:40 PM
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From: In A Disfunctional World
All of the normal posible faults have been listed.

If they fail, then: it is an affect caused by living too close to the Bermuda Triangle!
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Old Nov 4, 2008 | 06:09 PM
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awesome fellas!! I'll check these things out as soon as it stops raining.
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Old Nov 26, 2008 | 10:36 AM
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From: rockford
so how did it go?
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