1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

2.7L I4 No Start

Discussion in '4 Cylinder' started by forestgreengt, Jul 30, 2012.

  1. Jul 30, 2012 at 8:08 PM
    #1
    forestgreengt

    forestgreengt [OP] Member

    Joined:
    Jul 30, 2012
    Member:
    #83772
    Messages:
    6
    Gender:
    Male
    NC
    Stock
    The truck was running rough and now will crank over but will not start.

    1995.5 Tacoma ODB2

    I've checked the basics spark, compression and fuel. New distribution, plugs wires...getting good spark. Compression has also checked out. Also checked all fuses and relays underhood and dash.
    I do not hear the fuel pump cycle with the key. I also cannot get a obd scanner shows unable to establish connection, check engine light does not display. Any help is appreciated.
     
  2. Jul 30, 2012 at 8:16 PM
    #2
    Steves104x4

    Steves104x4 Well-Known Member

    Joined:
    Apr 17, 2010
    Member:
    #35468
    Messages:
    6,331
    Gender:
    Male
    First Name:
    Steve
    Buffalo NY
    Vehicle:
    2010 RC 2.7 4x4
    BUCKLE UP! It makes it harder for Aliens to pull you out of your Truck.
    The crankshaft position sensor seems to be an issue with those trucks.
     
  3. Jul 30, 2012 at 8:25 PM
    #3
    forestgreengt

    forestgreengt [OP] Member

    Joined:
    Jul 30, 2012
    Member:
    #83772
    Messages:
    6
    Gender:
    Male
    NC
    Stock
    I bought one and just plugged it into the connector. It's too late to install. Fuel pump still didn't prime and check engine light not one. Any other ideas?
     
  4. Jul 31, 2012 at 12:57 AM
    #4
    n0ms

    n0ms Well-Known Member

    Joined:
    Oct 8, 2011
    Member:
    #64844
    Messages:
    678
    Gender:
    Male
    First Name:
    Angel
    San Diego
    Vehicle:
    1st gen i4 single cab 4x4
    Celica seats, Icon in rear and front with icon ucas, omd leaf springs, deckplate mod, lce header, Tundra brake swap.
    Any more details?
    Was it making noises? Stalling out?
     
  5. Jul 31, 2012 at 3:51 PM
    #5
    forestgreengt

    forestgreengt [OP] Member

    Joined:
    Jul 30, 2012
    Member:
    #83772
    Messages:
    6
    Gender:
    Male
    NC
    Stock
    Sorry it's not my truck so not alot of details to go off of. It was stalling out prior and sputtering.
    Still not sure why I can't establish connection to the computer, I checked all the obvious.
     
  6. Jul 31, 2012 at 6:59 PM
    #6
    forestgreengt

    forestgreengt [OP] Member

    Joined:
    Jul 30, 2012
    Member:
    #83772
    Messages:
    6
    Gender:
    Male
    NC
    Stock
    Update: EFI fuse was blown. I can now connect to the computer P0100 reset and unhooked the battery this will not clear. Getting 12v to the meter and about to OHM out the meter. I have a three prong and can only find 5 prong specs.
     
  7. Aug 1, 2012 at 5:14 AM
    #7
    Ga tacoguy

    Ga tacoguy Well-Known Member

    Joined:
    Mar 2, 2012
    Member:
    #74020
    Messages:
    310
    Gender:
    Male
    First Name:
    Rudy
    Augusta Ga.
    Vehicle:
    Extended cab Base model 4 cyl
    Tailgate mod, horn mod,storage door mod
    :) Your P0100 code is a MAF,(mass air flow ) sensor problem. Your Taco has a VAF (variable air flow) sensor, and here is a link for a test sequence for it. I know it comes from a 4 runner, but it is the same year and should be close to the same. http://www.ncttora.com/fsm/1990-199...msour/1995/954runne/eg1/mfisyste/volumeai.pdf

    I know that on Mazda Miatas with this same VAF control , the wiring controls the air flow and the fuel pump also. It may be same with this one also. I would check the wiring connector and the wires for fraying or lost connectors. You may need a new VAF, as those are not adjustable.
    God Luck.
     
  8. Aug 1, 2012 at 2:07 PM
    #8
    Steves104x4

    Steves104x4 Well-Known Member

    Joined:
    Apr 17, 2010
    Member:
    #35468
    Messages:
    6,331
    Gender:
    Male
    First Name:
    Steve
    Buffalo NY
    Vehicle:
    2010 RC 2.7 4x4
    BUCKLE UP! It makes it harder for Aliens to pull you out of your Truck.
    Check the ground wires that attach to the frame. I bought a $75 truck (90 Mazda 4x4) that didn't start for the owner. I dragged it home, looked underneath and the ground wire to the frame was rotted off. I reconnected the wire, gave a Hail Mary and it started right up and ran beautifully. Go figure.
     
  9. Aug 22, 2012 at 8:04 PM
    #9
    forestgreengt

    forestgreengt [OP] Member

    Joined:
    Jul 30, 2012
    Member:
    #83772
    Messages:
    6
    Gender:
    Male
    NC
    Stock
    Thanks all! It was a combination of things, the MAF replaced the P0100 code. Now I just gotta check the ignition timing and we should be all set.
     
To Top