Results 1 to 7 of 7

Thread: Fuel questions.

  1. #1
    2,000 rpm - light wheelspin, no bog here! blenderblast's Avatar
    Drives
    97 BRG Miata (Turbo)
    Location
    Tampa, FL
    Join Date
    Jan 2012
    Posts
    263
    Thanks Given
    0
    Thanked 3 Times in 3 Posts

    Fuel questions.

    Okay, I need to know how the fuel system works. My '97 isn't getting any fuel pressure. I've changed the fuel pump to a known working walbro 255 (my car is turbo-ed), still nothing. Changed the fuel pump relay. Nothing.
    What do I need to check? Are there any areas that could have a clogged line by any chance that wouldn't allow any fuel pressure?
    "You can't believe most of the qoutes you read on the internet." Abraham Lincoln
    "Eighty percent of success is showing up" - Woody Allen

    1990 Red Miata - Stock Slammed. (3/16/2011 - 8/19/2012)
    1997 BRG Miata - Turbo-ed. 189.9rwhp @ 8psi. (11/29/2011 - 3/??/2014) -Oil line clogged- -Parted out-
    1996 White Miata - Stock. (7/13/2012 - 1/07/2013)
    1996 White Miata - Stock. (4/??/2014 - 8/14/2014)
    On the hunt '96-'97 - Stock - (11/1/2014 - Present)

  2. #2
    2,000 rpm - light wheelspin, no bog here! adamvanxxx's Avatar
    Drives
    Beat NA
    Location
    Indianapolis
    Join Date
    Jan 2012
    Posts
    478
    Thanks Given
    0
    Thanked 0 Times in 0 Posts
    The fuel filter?

  3. #3
    2,000 rpm - light wheelspin, no bog here! blenderblast's Avatar
    Drives
    97 BRG Miata (Turbo)
    Location
    Tampa, FL
    Join Date
    Jan 2012
    Posts
    263
    Thanks Given
    0
    Thanked 3 Times in 3 Posts
    Are there any visible signs that would let me know the fuel filter is bad? Or do I have to take it off to run liquid through it?
    "You can't believe most of the qoutes you read on the internet." Abraham Lincoln
    "Eighty percent of success is showing up" - Woody Allen

    1990 Red Miata - Stock Slammed. (3/16/2011 - 8/19/2012)
    1997 BRG Miata - Turbo-ed. 189.9rwhp @ 8psi. (11/29/2011 - 3/??/2014) -Oil line clogged- -Parted out-
    1996 White Miata - Stock. (7/13/2012 - 1/07/2013)
    1996 White Miata - Stock. (4/??/2014 - 8/14/2014)
    On the hunt '96-'97 - Stock - (11/1/2014 - Present)

  4. #4
    2,000 rpm - light wheelspin, no bog here! adamvanxxx's Avatar
    Drives
    Beat NA
    Location
    Indianapolis
    Join Date
    Jan 2012
    Posts
    478
    Thanks Given
    0
    Thanked 0 Times in 0 Posts
    Its a maintenance part, just replace it.

  5. #5
    2,000 rpm - light wheelspin, no bog here! Soledad's Avatar
    Drives
    '90 Silverstone, '08 'Niseko' Icy Blue Metallic
    Location
    Richmond, VA
    Join Date
    Dec 2011
    Posts
    119
    Thanks Given
    6
    Thanked 27 Times in 12 Posts
    Can you hear the FP turn on when you turn the ignition to the 'ON' (engine not running) position?

  6. #6
    Forum Sponsor revlimiter's Avatar
    Drives
    Sharka
    Location
    Revlimiter.net
    Join Date
    Dec 2011
    Posts
    3,199
    Thanks Given
    749
    Thanked 5,007 Times in 1,278 Posts
    There's a fuel pressure check pin in the little diagnostic box (used for TEN and GND when setting timing).



    Put a jumper between F/P and GND and you'll be able to pressurize your fuel rail. Or you will when things are working. =)

    Did it just suddenly stop getting fuel? Or did you change an engine and get into your fuel system, possibly crossing the feed and return hoses when you put things back together?

  7. #7
    2,000 rpm - light wheelspin, no bog here! blenderblast's Avatar
    Drives
    97 BRG Miata (Turbo)
    Location
    Tampa, FL
    Join Date
    Jan 2012
    Posts
    263
    Thanks Given
    0
    Thanked 3 Times in 3 Posts
    I've been looking for that rev limiter!
    It just suddenly stopped working. It has done this before, but I swapped a different fuel pump relay and it worked fine. That didn't work this time.
    My fuel pump makes noise when it wants to. Sometimes I'll hear it, sometimes I won't. It has a mind of its own. I have asked around from a few guys who have walbro 255s in their car, and they say they have the same problem. Makes the whining noise whenever it wants to.
    "You can't believe most of the qoutes you read on the internet." Abraham Lincoln
    "Eighty percent of success is showing up" - Woody Allen

    1990 Red Miata - Stock Slammed. (3/16/2011 - 8/19/2012)
    1997 BRG Miata - Turbo-ed. 189.9rwhp @ 8psi. (11/29/2011 - 3/??/2014) -Oil line clogged- -Parted out-
    1996 White Miata - Stock. (7/13/2012 - 1/07/2013)
    1996 White Miata - Stock. (4/??/2014 - 8/14/2014)
    On the hunt '96-'97 - Stock - (11/1/2014 - Present)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •