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Thread: Fuel cut with about 1/3 tank of gas?

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    Charter Patron HIJACKER's Avatar
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    Fuel cut with about 1/3 tank of gas?

    Yesterday, I went through a set of carousel turns at the track, with about a 1/3 tank (maybe 1/4 tank), coming out, needle was down to E and I hit fuel cut for a brief moment, then the needle went back up. I obviously knew the gas would slosh around, but not that much to miss the pickup.

    Is that to be expected, starting around a 1/3 tank? I know we can baffle our oil pans, but is there any solution to the gas tank other than being sure you have 1/2 tank or more?
    *2004 Silverstone/Silver SOLD*

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    Administrator docjohn's Avatar
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    Re: Fuel cut with about 1/3 tank of gas?

    I don't know why your car did that,but for reference I have run the track plenty of times with the needle just at E and have never had a loss of power,rev limiter yes ,but not low fuel

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    Charter Patron HIJACKER's Avatar
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    Re: Fuel cut with about 1/3 tank of gas?

    Quote Originally Posted by docjohn View Post
    I don't know why your car did that,but for reference I have run the track plenty of times with the needle just at E and have never had a loss of power,rev limiter yes ,but not low fuel
    Hmm.. it's POSSIBLE I hit the rev limiter, it was pretty close to a shift point, but that would surprise me. I just remember when I immediately glanced down, the needle was right on E...
    *2004 Silverstone/Silver SOLD*

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    Re: Fuel cut with about 1/3 tank of gas?

    Were you overheating? Rev limiter kicks in sooner (~7k) when you start to overheat..
    Last edited by Hapa88; 04-28-2012 at 19:41.
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    Registered User NSXDreamer2's Avatar
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    Re: Fuel cut with about 1/3 tank of gas?

    i noticed the same problem for mine too, and it's only happened at higher rpm with higher speed g loading. Mine happens in left turn for the 2 tracks that i went to. It usually happens when the fuel is low and/or track temp is higher.

    My mechanic thinks the old fuel pump is the culprit; while I also wonder since it's kind of related to heat. (I never had this problem until later of the day or after lunch.) It could be the fuel pump relay...

    please do keep us inform if you fix the problem.

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    Charter Patron HIJACKER's Avatar
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    Was not overheating, track temps were cool, air temp was about 60.
    *2004 Silverstone/Silver SOLD*

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    Re: Fuel cut with about 1/3 tank of gas?

    i noticed the fuel gauge showing lower too, but did not experience any fuel cutoff. i did fuel up to be safe, though.
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    Registered User NSXDreamer2's Avatar
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    Re: Fuel cut with about 1/3 tank of gas?

    Quote Originally Posted by HIJACKER View Post
    Was not overheating, track temps were cool, air temp was about 60.
    overheating regards to that little metal heat sink by the right side, the fuel pump relay. again, I just speculating at this point.

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    Charter Patron HIJACKER's Avatar
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    Quote Originally Posted by NSXDreamer2 View Post
    overheating regards to that little metal heat sink by the right side, the fuel pump relay. again, I just speculating at this point.
    If that's the case, how is it correctable?
    *2004 Silverstone/Silver SOLD*

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    Charter Silver nsxtasy's Avatar
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    Quote Originally Posted by docjohn View Post
    I don't know why your car did that,but for reference I have run the track plenty of times with the needle just at E and have never had a loss of power,rev limiter yes ,but not low fuel
    Same here...
    NSX. Spread the word.

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    Registered User NSXDreamer2's Avatar
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    Re: Fuel cut with about 1/3 tank of gas?

    Quote Originally Posted by HIJACKER View Post
    If that's the case, how is it correctable?
    if I have chance to get hold of a new one, then I can identify/isolate the problem.

    anyone recommend a walbro fuel pump or a new oem unit?

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    Re: Fuel cut with about 1/3 tank of gas?

    It happened to me two time on left turns when I was 1/4-1/3 of the tank.

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    Re: Fuel cut with about 1/3 tank of gas?

    Rev limiter can also cut in with cold engine at 7K. Was it your first lap? I've run with 1/4 tank and never had a problem (OEM fuel pump).

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    Re: Fuel cut with about 1/3 tank of gas?

    Ran an autocross yesterday and started with the needle on E, no fuel cut through any of the horseshoe turns. not the same length of g-load, but I *might* have had 2 gallons in the tank at the time.

    I've seen my needle hit E from slosh on the track, but haven't experienced any fuel starve there either.
    1992 Berlina Black, light mods: 250,000 miles and counting.

  15. #15

    Re: Fuel cut with about 1/3 tank of gas?

    Ive found that if I am below 2/3 of a tank at the end of a 20 min session the gauge will read empty, I dont get cut outs though and the needle rises slowly again after I am still for a bit.

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    Charter Patron HIJACKER's Avatar
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    Quote Originally Posted by illwillem View Post
    Ive found that if I am below 2/3 of a tank at the end of a 20 min session the gauge will read empty, I dont get cut outs though and the needle rises slowly again after I am still for a bit.
    That's the same thing I get.
    *2004 Silverstone/Silver SOLD*

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    Charter Patron HIJACKER's Avatar
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    Quote Originally Posted by pgilliam1 View Post
    Rev limiter can also cut in with cold engine at 7K. Was it your first lap? I've run with 1/4 tank and never had a problem (OEM fuel pump).
    I was about 15 minutes into a 20 minute run.
    *2004 Silverstone/Silver SOLD*

  18. #18

    Re: Fuel cut with about 1/3 tank of gas?

    When was the last time you checked your fuel filter. In my scenario at Infineon turn 10 - the last place you want this to happen, the culprit was a dirty fuel filter (about 9 years old with 45K miles)

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    Charter Patron HIJACKER's Avatar
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    Re: Fuel cut with about 1/3 tank of gas?

    2nd owner of the car, I've personally never checked the fuel filter. If mine is original, then it would be 8 years old with 70k. I guess it wouldn't hurt to check it and replace it.

    Should I stick with OEM or is there another fuel filter of choice? Where is it located and how easy to replace?
    *2004 Silverstone/Silver SOLD*

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    Charter Silver pgilliam1's Avatar
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    Re: Fuel cut with about 1/3 tank of gas?

    Since the fuel system is pressurized, it's hard to believe that a fuel filter would delay fuel only in turns . If the filter was dirty enough to restrict fuel, you would notice it more at lower pressure, or speeds below 4K rpm. Just thinkin out loud here folks.

    The OEM filter isn't very exspensive but it can be a PITA to replace. If you have an impact wrench be sure to use it. The bolts are very stubborn to remove and the filter hard to hold onto to. Located on the passenger side engine compartment near the firewall (easy to see and access).
    Last edited by pgilliam1; 05-01-2012 at 09:39.

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    Charter Patron HIJACKER's Avatar
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    Re: Fuel cut with about 1/3 tank of gas?

    I'd be interested to hear what Billy would have to say on this topic....
    *2004 Silverstone/Silver SOLD*

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    Charter Silver nsxtasy's Avatar
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    Quote Originally Posted by HIJACKER View Post
    2nd owner of the car, I've personally never checked the fuel filter. If mine is original, then it would be 8 years old with 70k. I guess it wouldn't hurt to check it and replace it.


    In the maintenance schedule in the owner's manual and service manual, Honda/Acura recommends replacing the fuel filter and rubber fuel lines/hoses every 60K miles or 4 years, whichever comes first.

    Quote Originally Posted by HIJACKER View Post
    Should I stick with OEM or is there another fuel filter of choice?
    OEM.

    Quote Originally Posted by HIJACKER View Post
    Where is it located and how easy to replace?
    LITFM (pages 11-4 and 11-97).
    NSX. Spread the word.

  23. #23

    Re: Fuel cut with about 1/3 tank of gas?

    Wow fuel cut with a 1/3rd tank... i've had 1-2 gallons in my car and never hit fuel cut in a loaded turn...

    I suspect something else...

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