Results 1 to 4 of 4

Thread: Air flow constant 4.4 Nanocom TD5 = MAF fail?

  1. 23rd March 2015, 12:05 PM #1
    Jazzman
    Jazzman is offline Wizard Silver Subscriber
    Join Date
    Jun 2011
    Location
    Victoria - Pakenham
    Posts
    1,268
    Total Downloaded
    0

    Air flow constant 4.4 Nanocom TD5 = MAF fail?

    Can someone please confirm an unchanging (idle, 3000rpm of while driving) air flow reading of 4.4 is either a failed MAF or MAF loom connection?
    It reads 4.3 with the MAF unplugged. I've also had a scenario where the car would not accelerate for about 5 second then it would take off.
    Reply With Quote Reply With Quote
  2. 23rd March 2015, 02:54 PM #2
    Rok_Dr's Avatar
    Rok_Dr
    Rok_Dr is offline Wizard
    Join Date
    Jan 1970
    Location
    Perth WA 6149
    Posts
    1,308
    Total Downloaded
    0
    Yep. That's a dead signal and exactly the same problem I had a couple of years ago. The following thread gives some detail and pointers.

    http://www.aulro.com/afvb/technical-...f-stuffed.html

    BTW you can also check the MAF using a multimeter, but make sure it can read high enough resistances as a lot of cheap ones can't go high enough.

    Cheers
    Steve
    Reply With Quote Reply With Quote
  3. 23rd March 2015, 07:01 PM #3
    sierrafery's Avatar
    sierrafery
    sierrafery is offline YarnMaster Silver Subscriber
    Join Date
    Jul 2014
    Location
    west of Transylvania
    Posts
    3,793
    Total Downloaded
    0
    Hi, just confirm that 4.4/4.3 reading is air flow(kg/h) or voltage?... anyway if it's air flow it's probably a dead MAF and there's a reading error cos it should be 0 with MAF unplugged but i've seen similar cases when the reading was not 0
    Discovery Td5 (2000), manual, tuned
    Reply With Quote Reply With Quote
  4. 23rd March 2015, 08:14 PM #4
    Jazzman
    Jazzman is offline Wizard Silver Subscriber
    Join Date
    Jun 2011
    Location
    Victoria - Pakenham
    Posts
    1,268
    Total Downloaded
    0
    Quote Originally Posted by sierrafery View Post
    Hi, just confirm that 4.4/4.3 reading is air flow(kg/h) or voltage?... anyway if it's air flow it's probably a dead MAF and there's a reading error cos it should be 0 with MAF unplugged but i've seen similar cases when the reading was not 0
    The reading is what Nanocom displays under airflow, either when in the "instruments" screen or under "TD5 inputs - Airflow"

    This was my thought as well as on another thread, possibly the one Rok_Dr has posted a link to, talked about reading 4.4 volts, gnd and variable output.
    Reply With Quote Reply With Quote
« first td5 some questions... | id please »

Bookmarks

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
  •  

Forum Rules

Search AULRO.com ONLY!
 Search All the Web!