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HELP!!! bad mpg

Discussion in 'Civic and CRX - EF' started by akronboy89, Jan 12, 2009.

  1. akronboy89

    akronboy89 New Member

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    ok i got a 89 civic hatch it has the stock motor and a 4 speed trans. it has a header and a full catback and im only getting like 200 to a tank. on my ecu im getting 1 flash then 17 after the pause and dont no what that is. i do get a check engine light when i drive slow for some reason some one help
     
  2. Luis998

    Luis998 Honda Enthusiast

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    Check your Hayne's manual and see what the code means.
     
  3. efhondakid

    efhondakid My name is Byron. VIP

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    Code 1 is O2 sensor and 17 isnt a valid code, its for VSS, your VSS is cable operated, so it may be 10 and 7 which is IAT sensor and TPS sensor. All these controll fuel it my be one or combonation of all three. Start out with a new O2 and see what that does for you. Then the IAT sensor as the TPS sensors very rarely go out.
     
    1 person likes this.
  4. Luis998

    Luis998 Honda Enthusiast

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    Byron, all I have to say is REP! :thumbsup:
     
  5. akronboy89

    akronboy89 New Member

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    im going to buy a new o2 tomorrow but dont no what one is better they got a bosch and a ngk i think the ngk would be. and efhondakid what kind of car do u have?
     
  6. efhondakid

    efhondakid My name is Byron. VIP

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    No need for rep. I just know how to use our reference section, if I had a nickel for everytime Ive used the ECU code list, well Id have quite a few nickels.:D
     
  7. efhondakid

    efhondakid My name is Byron. VIP

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    Not really going to make a difference whch one you go with, they both will do the same thing. 89' DX with a JDM B16.
     
  8. Luis998

    Luis998 Honda Enthusiast

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    I've had such a shit day that I didn't even think of checking there. :(
     
  9. akronboy89

    akronboy89 New Member

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    i was just down in canton over the weekend looking at a ef hatch with a b16 and a stock one just though it might of been u haha. and im on my phone its hard to do some stuff on this site
     
  10. D16SiHatch

    D16SiHatch New Member

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    How is code 17 for vss not a valid code. if you unplug the cable from the trans you will get this code. the speedometer will no longer function and the ecu won't receive a vss pulse from the gauge cluster.
     
  11. akronboy89

    akronboy89 New Member

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    well my speedometer works i want to do a swap here when i get my incom tax
     
  12. eg6sir

    eg6sir Supa Mod Moderator VIP

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    its most likely your O2 sensor causing you to run rich.. thus giving you poor MPGs
     
  13. |Chaz|

    |Chaz| Well-Known Member VIP

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    I've been getting really shitty mpg lately too... sucks :/
     
  14. MthaFuknGreen

    MthaFuknGreen Green on the scene.

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    get a dodge circuit.
    lol
     
  15. !JDM_EF-9!

    !JDM_EF-9! I'm just EF'n..

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    so wat do you do??
    Just get a new o2??
    Cuz his problem sounds the same as mine only that i got a b16 swap in mine car..
     
  16. eg6sir

    eg6sir Supa Mod Moderator VIP

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  17. jimmyvong

    jimmyvong New Member

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    Exactly what EF kid said. Good luck.
     
  18. Magana559

    Magana559 The Warden

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  19. efhondakid

    efhondakid My name is Byron. VIP

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    Wouldnt happen to be Dustins would it, red with body kit, black front bumper?
     
  20. akronboy89

    akronboy89 New Member

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