wont stay running - YotaTech Forums

86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

wont stay running

LinkBack Thread Tools Search this Thread
Old 02-02-2009, 04:56 AM   #1
Registered User
Thread Starter
scott34's Avatar
Join Date: Dec 2008
Posts: 5
Post wont stay running

I have a 1992 toyota that has trouble staying running. We can get it started if we pour gas into the air vent but once thats gone it stalls out, we replaced the fuel pump thinking that was the problem cause we couldnt hear it running when we turned the key so we figured thats why it wasnt getting any fuel. turns out thats not the problem. any suggetions would b greatly appreciated.
scott34 is offline   Reply With Quote
Old 02-02-2009, 05:14 AM   #2
Contributing Member
TNRabbit's Avatar
Join Date: Apr 2006
Location: TENN Native Languishing in Virginia
Posts: 4,787
A combustion engine requires fuel, spark, & air to run. Start with the basics & ensure you're getting each. Since it runs with fuel sprayed into the intake, my guess is you're not getting fuel; however, issues with the intake tube or VAFM can cause this also. Check for holes in the intake tube, and verify the VAFM is plugged in.

Where in the "air vent" are you pouring fuel?
TNRabbit is offline   Reply With Quote
Old 02-02-2009, 05:43 AM   #3
Registered User
TomThumb's Avatar
Join Date: Aug 2006
Location: Newfoundland, Canada
Posts: 50
What engine do you have?? I had a similar issue with my rig. Turns out I had a bad AFM(Air Fuel Meter.) The AMF has a fuel pump activation circuit that turns on the pump when cranking the engine. The little flap inside that measures air flow when cranking closes the circuit and the truck should start. Not sure if your year is the same as mine, but the easiest way to check is to get a small piece of wire and put it into the Diagnostic port on the side of your fuse box under the hood. I used the terminals marked +B and Fp. Again this was for a 93 22RE, hope this helps
TomThumb is offline   Reply With Quote
Old 02-02-2009, 05:45 AM   #4
Registered User
Join Date: Aug 2008
Posts: 47
If it is fuel injected check the fuel pressure and then make certain the idle air control is clean. if it is plugged, the engine won't idle. it could also be fuel pressure regulator. Did you replace the fuel filter? I'm grasping at straws here. You obviously have spark and air, you're just lacking 1/3 of the equation. The idle air valve is usually located in the throttle body and acts like a controlled vacuum leak that allows the engine to idle.
Cyclopsblown34 is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
87 22R hi idle not kicking down until... luckypig44 Newbie Tech Section 4 07-19-2015 11:25 AM
Am I in danger of overheating my Toyota pickup? Jeffreynmandy 86-95 Trucks & 4Runners 21 07-18-2015 08:26 AM
Extremely low Idle kyletbert 86-95 Trucks & 4Runners 3 07-17-2015 11:39 AM
91 22RE Should my Oil Pressure Warning light come on when disconnected? Odin 86-95 Trucks & 4Runners 8 07-15-2015 09:28 PM
02 Tacoma temp gauge fluctuating and trans stopped working Poncho0206 95.5-2004 Tacomas & 96-2002 4Runners 3 07-10-2015 06:21 PM

1992, 50, 88, 91, 92, bogs, knocking, pickup, problem, pu, running, started, stay, toyota, wont

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -8. The time now is 03:43 AM.

2017 InternetBrands, Inc.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: