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  1. #1
    Member Array
    Join Date
    Jan 2011
    Location
    sydney
    Car:
    EG

    eg d15 flat spot in acceleration

    I have a 94 eg with a d15b7 manual,

    When taking off first is fine then second acceleration stops and has flat spot I would say it’s around 2500-3000rpm with your foot flat to the floor nothing then all of the sudden it will rocket off... or you change in to third its usually fine too, it’s been like this since I got it and it doesn’t happen all the time.

    I’ve changed:
    Spark plugs
    Leads
    coil
    Fuel pump
    Fuel filter
    Earth straps off gear box and rocker cover
    Air filter
    timing belt
    Changed injectors
    Reset ecu
    Cleaned throttle body
    Checked ignition timing

    Is there anything else anyone can think of and does anyone have the same problem

    thanks Rhys
    Last edited by tottitomo; 26-03-2013 at 08:34 PM.

  2. #2
    sounds like VTEC is kicking in lol!

    On serious note, You said you changed fuel pump, how about fuel filter?

  3. #3
    Member Array
    Join Date
    Jan 2011
    Location
    sydney
    Car:
    EG
    Sorry yea changed the filter too I'm seriously stumped

  4. #4
    Member Array
    Join Date
    Jul 2010
    Location
    Adelaide, South Australia
    Car:
    88' ED6
    O2 Sensor..? I know there's usually a CEL associated with it, but it's worth a try if you've done everything you've listed.
    '96 EK1 - '99 Milano Red DC2R - '99 Championship White DC2R - '92 EG4 - '89 EF9 B16/LSD - 88' ED6 - 91' SR20DET 180sx - 93' EG8 B16 Sedan

  5. #5
    Member Array
    Join Date
    Aug 2012
    Location
    canberra
    Car:
    DC2
    check the calibration on the tps befor replacing more parts.
    Mate my bbk cost more than your Honda.
    -Amant02

  6. #6
    Member Array
    Join Date
    Mar 2011
    Location
    Brisbane
    Car:
    EK hatch, DC2
    i have this problem as well, started happening after i changed my headers and extended my o2 sensor to fit the new headers i bought on my d16y4.

  7. #7
    Member Array
    Join Date
    Jan 2011
    Location
    sydney
    Car:
    EG
    Thanks for the ideas how do I check the tps

  8. #8
    Member Array
    Join Date
    Jan 2010
    Location
    ACT
    Car:
    DC2
    Quote Originally Posted by tottitomo View Post
    Thanks for the ideas how do I check the tps
    Searching usually helps: http://www.ozhonda.com/forum/showthr...age-on-the-TPS

    I'd check the O2 sensor, do you have a friend with a D series honda? swap there O2 into your car and see if it fixes the problem.
    -ZAMMIN-

    "I know who you are, and I know if I make a formal complaint Mr. Benjamin will have to roll over and give me all your details"
    - Integra-GSi 19/11/2015

  9. #9
    Member Array
    Join Date
    Jan 2011
    Location
    sydney
    Car:
    EG
    Thanks I'm using a phone to look at this I did a quick search didn't come up with anything ill test my tps when I get home and if its good ill put a new o2 sensor in as I don't know anyone with a Honda...

  10. #10
    blocked Cat .... checked the timing on the dizzy ...

  11. #11
    Member Array
    Join Date
    Aug 2012
    Location
    canberra
    Car:
    DC2
    honerstly could be a number of things and random guesses arnt gonna get you there. stop replacing parts for a bit and go through all the sensors that control air and fuel delivery peramiters. have a loom at ecu-mans pgmfi diagnostics threads as per each sensor that could effect it and test accordingly.
    for all sensors there is a way to test em. just gotta figure out how and its free so nothing to lose

    **from what i recal changing the o2 sensor is recomended every 100,000 or so anyway regardless of if its faulty or not, gets colged up or somethin
    Last edited by Daveho1; 06-03-2013 at 04:52 AM.
    Mate my bbk cost more than your Honda.
    -Amant02

  12. #12
    Member Array
    Join Date
    Sep 2005
    Location
    Melburn
    Car:
    S2K
    Check that your fuel pump sock is mounted in the right direction (down, not up). Sounds like fuel starvation problem to me.. Check injectors after that.

    Peace.

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