1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

d15b p28 how does this work?

Discussion in 'ECU's, Electronics, and Tuning' started by puttockc, Jun 15, 2008.

  1. puttockc

    puttockc New Member

    Messages:
    10
    Likes Received:
    0
    Joined:
    May 18, 2008
    I am a noob

    My car has a p28 ecu, not sure if its modded or not, cannot figure out how to tell

    I am getting 18 mpg

    would this be caused just by having a d15b and a p28 together? I plugged in one of those computer and it says no codes are registering and the O2 sensor has 4 wires coming off it, it looks kinda jerry-rigged going into the ecu but I have never seen another ecu so... yeah

    the second part of the question is how can I tell for sure whether my d15b is the kind with the multiple vtec stage or the single stage

    someone said that if I had the wrong ecu for the multiple vtec would only engage the more powerful stage

    my engine tends to engage vtec at 5500 rpm and feels powerful as hell, but the only other car I have ever driven flat out is a diesel jetta

    so.. how can I tell what I actually have running and would having a p28 in combo with a d15b (either kind) cause 18mpg fuel economy


    Thanks in Advance

    -Clueless Noob
     
  2. AHHVTEC

    AHHVTEC Well-Known Member VIP

    Messages:
    13,122
    Likes Received:
    245
    Joined:
    Oct 13, 2006
    Location:
    Alabama
    how many vtec solenoids does it have
     
  3. puttockc

    puttockc New Member

    Messages:
    10
    Likes Received:
    0
    Joined:
    May 18, 2008
    I have no Idea how to tell,

    I know it has one connection which if unplugged would cause I power cut at 5500rpm which I assume disconnects vtec
     
  4. AHHVTEC

    AHHVTEC Well-Known Member VIP

    Messages:
    13,122
    Likes Received:
    245
    Joined:
    Oct 13, 2006
    Location:
    Alabama
    well if its a multi stage vtec it will have more than one vtec solenoids
     
Verification:
Draft saved Draft deleted

Share This Page