• Fuel Pump and Scanner???
  • Fuel Pump and Scanner???
  • Fuel Pump and Scanner???
  • Fuel Pump and Scanner???

Thanks Thanks:  0
Likes Likes:  0
Dislikes Dislikes:  0
Results 1 to 4 of 4
  1. #1
    Registered User
    Join Date
    Dec 2008
    Location
    New Jersey
    Posts
    319
    Post Thanks / Like
    Rides
    0

    Default Fuel Pump and Scanner???

    When I used my scanner to delete my PO420 code, I noticed something strange.

    To use the scanner you plug it in and turn the key to the run position (but dont start the car). Normally the fuel pump runs for the most 3 seconds.

    When the scanner is plugged in, the fuel pump runs for a good 20 sec to the point I get nervous and turn the key to the off position.

    Does anyone have the same problem, know what causes it, and is it a problem for the fuel pump to run for 20 sec with the engine off?

    Thanks!

  2. #2
    Member
    Join Date
    Feb 2009
    Location
    Hartford, WI
    Posts
    324
    Post Thanks / Like
    Rides
    0

    Default

    In the ALDL where you plug your scanner in, IIRC there is a way where if you join 2 terminals your fuel pump comes on. Maybe the scanner does that for a set time?

  3. #3
    Registered User
    Join Date
    Dec 2008
    Location
    New Jersey
    Posts
    319
    Post Thanks / Like
    Rides
    0

    Default

    Im not sure? Good info though... I hope the scanner cannot damage anything!

  4. #4
    Member
    Join Date
    Feb 2009
    Location
    Hartford, WI
    Posts
    324
    Post Thanks / Like
    Rides
    0

    Default

    Quote Originally Posted by dogfish246 View Post
    Im not sure? Good info though... I hope the scanner cannot damage anything!
    I doubt it.

Similar Threads

  1. Intermittent No Start Please Help Anyone!
    By BradleyJ in forum C4 Technical and Performance
    Replies: 9
    Last Post: 06-01-09, 07:34 PM
  2. Fuel system logic
    By Nazgul in forum C4 Technical and Performance
    Replies: 0
    Last Post: 11-10-07, 11:07 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •