1992 Toyota Pickup No Injector Power

2012 TOYOTA PICKUP
Avatar
SEAN1073
  • MEMBER
  • 4 POSTS
Hi guys..
i have a 1992...toyota...truck..with 100 plus miles and the engine is a 22RE motor....one day it stalled and would not start..well my dad replaced the basics and yet no start..we traced it down to there being no 12 volts coming to the fuel injectors from the computer..but we are not sure if there is a relay or fuse between the injectors and computer or just the straight shoot from the computer to the F.I...can you help..thanks sean
Jul 31, 2006 at 4:17 PM
Advertisement
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Your power should be coming from the ignition switch or EFI main relay. You should have power when you turn the key to On position. Your ground is coming from circuit 10/20 this is where the computer goes in, to provide the ground to energizes
the injectors.

Check for spark, no spark the ECM will kill the injector by not recieving the Ne or G signal.
Aug 3, 2006 at 10:59 PM
Avatar
SEAN1073
  • MEMBER
  • 4 POSTS
i take it....as....you are saying to replace the ECM and that should solve this problem...thanks i will try that and let you know...sean
Aug 4, 2006 at 7:13 AM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.

Suggested Repair

Check for injector power from the ignition switch or EFI main relay with the key on. The ECM supplies the injector ground on circuit 10/20 rather than constant 12 volts. Also check for spark; if spark is absent, the ECM may not pulse the injectors because it is not receiving the Ne or G signal. Do not replace the ECM based only on this symptom.

Conversation Summary

The owner of a 1992 Toyota truck with a 22RE engine reported a stall and no-start, with no 12 volts reaching the fuel injectors, and asked whether a relay or fuse was involved. The expert explained that injector power comes from the ignition switch or EFI main relay, while the computer provides the ground. The expert also advised checking spark, since missing Ne or G signals can stop injector operation. The owner incorrectly concluded that the ECM should be replaced.

Related Repair Questions

Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle