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

chipped ecu

Discussion in 'ECU's, Electronics, and Tuning' started by Wilshire, Nov 20, 2007.

  1. Wilshire

    Wilshire Big WIll

    Messages:
    93
    Likes Received:
    1
    Joined:
    Mar 17, 2007
    Location:
    nor cal
    i recently bought a chipped ecu and when i put it in there is a very loud hissing sound. It really sounds like a vacume leak. and it also has an irregular idle, (jumps and drops). this continues for the first ten minutes the car runs then stops with a subtle clicking noise. Then everything is fine and normal.
    when i put my stock ecu in there was no problem at all and everything acted normally. ive re-installed and taken it out a few times and the results are the same.

    What could the noise be. I really have no clue due to it only acts up with the new ecu and not the stock one.

    any info would help
     
Verification:
Draft saved Draft deleted

Share This Page