Definitive Car

Results 1 to 3 of 3

Thread: High Idle - ADZ 1.8l Engine

  1. #1
    Join Date
    Apr 2021
    Location
    Melbourne VIC
    Posts
    1

    High Idle - ADZ 1.8l Engine

    I wasn't exactly sure where to put this, so happy to move if it's in the wrong area.

    The ADZ 1.8l SPFI engine I have in my SEAT Cordoba idles high (just under 1000rpm) and the revs hang if I just touch the throttle in neutral, or when coming up to a stop (will hang around 2000rpm for up to 4 seconds before slowly going back to the high idle).

    There doesn't seem to be any vacuum leaks, and the fuel pump and filter were recently replaced. The throttle body is reasonably clean inside, also. It's also slightly lumpy at idle, which I'm not sure whether it's linked, or just a characteristic of the SPFI system.

    So, any thoughts? Thanks!

  2. #2
    Join Date
    Jun 2011
    Location
    Newcastle
    Posts
    2,849
    There’s a gasket under the throttle body that is problematic - possible cause of your issues


    Sent from my iPhone using Tapatalk

  3. #3
    Join Date
    Apr 2021
    Location
    Melbourne VIC
    Posts
    1
    Thread Starter

    Good to know. I think that gasket was replaced only a month or two before I purchased it. I'll have to check it out.

Tags for this Thread

Bookmarks

Posting Permissions

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