Results 1 to 2 of 2

Thread: MAF Wiring

  1. 07-02-2016, 16:54 #1
    Phaeton
    Phaeton is offline
    Phaeton's Avatar
    Join Date
    Nov 2006
    Location
    Sunny Worksop
    Posts
    764

    MAF Wiring

    Not on a MR2 or even a Toyota but on the lads 1993 Skyline with a RB25DET (Ithink) engine, he's upgrading the turbo, injectors etc. Along with these changes he's going from a 3 wire MAF to a 4 wire MAF signal, 12V Supply, Earth & Signal Earth, he's been reading up & everybody seems to ask the question "I presume I can just tee the Signal Earth & the Earth together" but nobody has actually replied back, either "Yup that will do it" or "No that is a bad idea, run a new earth back to the ECU" Does anyone have an opinion?
    Reply With Quote Reply With Quote
  2. 07-02-2016, 17:35 #2
    cdwood2010
    cdwood2010 is offline
    cdwood2010's Avatar
    Join Date
    Sep 2010
    Location
    Earls Barton
    Posts
    6,003
    Earth and signal earth (CG AND SG) are not the same thing, if you connect them both together I suspect the value from the maf may be affected (I.e. wrong).

    Without seeing the wiring for the 4 wire version of be guessing. Well actually I'm always guessing. But I would run it back to the ECU pin if that's where its supposed to go, and if possible use the same weight cable.

    God I sound like I know what I'm talking about there. You wouldn't imagine that my 2gr still has wires twisted together with sellotape in the boot.

    Sings "I did it my way!!"

    Reply With Quote Reply With Quote
« Previous Thread | Next Thread »

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