Need some help guys. Weird issue
#23
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The alternator fuse (80A, shown as Gen here) powers almost everything else. It also connects direct to the battery, so if you have no power TO the alt fuse then something has come loose.
#24
The alternator fuse (80A, shown as Gen here) powers almost everything else. It also connects direct to the battery, so if you have no power TO the alt fuse then something has come loose.
The last component that we have yet to swap out is the Igniter for the coil. I thought that I had an extra one laying around somewhere, but we cannot find it.
#25
We are going to take off the upper intake and trace all the wiring. The more I think about it, the more I feel like there is a broken/ pinched wire somewhere in the harness.
I think this because the CEL immediately comes on even after resetting the system for long periods of time.
I think this because the CEL immediately comes on even after resetting the system for long periods of time.
#29
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I am leaning toward a broken wire or loose connection from being moved around.
As the code comes back as soon as you connect the battery.
I would look to see you have good connections from the Igniter to the distributor no bent pins or corroded ones.
That would cause the no advance issue.
As the code comes back as soon as you connect the battery.
I would look to see you have good connections from the Igniter to the distributor no bent pins or corroded ones.
That would cause the no advance issue.
Last edited by wyoming9; 04-26-2014 at 12:00 PM.
#32
Well. The truck is up and running perfect as it should now.
I am updating this thread in the event that someone else has the same issue with the Code 31 in their 22RE pickup/4runner.
I know exactly how this happened.
When removing the Upper Intake from the 22Re, you have to deal with the engine harness running in between the intakes. When we removed for further inspection, you could see where the harness had been rubbing on the fuel rail for quite some time. I decided that we should open the harness and go through all the wires. Upon first glance, there was no noticeable damage or loose wires. But after a few minutes of digging further into the harness, and actually uncovering another loomed up section that rides on the fuel rail, I found the broken wire.
What led me to believe that it was a broken wire was that the CEL would instantly come on after resetting the ECU with the battery disconnected. There was no delay or drive cycle for it to trip, just instantly on.
This happened when we were installing the upper intake last week and moved/pushed the harness down to gain a clear shot at the lower upper intake bolts. When this happened, it put a strain on the harness, that was literally riding on the fuel rail, and pulled the AFM wire away from the 5-1 crimp. What a relief.
Now onto the repair. Like a rookie, I did not take any photos of the repair. I was just wanting to get it together and see how it would run.
There is a crimp that holds 5 wires together. They are all 5 White/red wires with 4 into 1 white/red that heads back to the ECU.
The hanes manual we have did not represent this wire coming from the AFM to the ECU. In fact it did not have it in the diagram at all. So I traced it back through the loom to where it broke from the AFM. We decided to use an electrical harness connector and then heat shrink everything back together.
After we re-wrapped the entire harness back together making sure that it was nice and tight. After doing this it was clear that we had created more room for the harness to sit in between the Upper intake, lower intake and fuel rail.
Which I feel is an issue that everything was crammed in there to begin with.
Top that off with 23+ year old wiring, and you are in for a potential issue.
So after resetting the TPS for what seemed like the 100th time, got her back together, he test drove it and came back with a smile on his face.
I think that he and I learned a valuable lesson, and that's not to give up, keep trying every angle, ask for help when you need it, take all the advice you can get, and again never give up!!
Thanks for all the help guys. Its greatly appreciated. This one threw me for a loop
I am updating this thread in the event that someone else has the same issue with the Code 31 in their 22RE pickup/4runner.
I know exactly how this happened.
When removing the Upper Intake from the 22Re, you have to deal with the engine harness running in between the intakes. When we removed for further inspection, you could see where the harness had been rubbing on the fuel rail for quite some time. I decided that we should open the harness and go through all the wires. Upon first glance, there was no noticeable damage or loose wires. But after a few minutes of digging further into the harness, and actually uncovering another loomed up section that rides on the fuel rail, I found the broken wire.
What led me to believe that it was a broken wire was that the CEL would instantly come on after resetting the ECU with the battery disconnected. There was no delay or drive cycle for it to trip, just instantly on.
This happened when we were installing the upper intake last week and moved/pushed the harness down to gain a clear shot at the lower upper intake bolts. When this happened, it put a strain on the harness, that was literally riding on the fuel rail, and pulled the AFM wire away from the 5-1 crimp. What a relief.
Now onto the repair. Like a rookie, I did not take any photos of the repair. I was just wanting to get it together and see how it would run.
There is a crimp that holds 5 wires together. They are all 5 White/red wires with 4 into 1 white/red that heads back to the ECU.
The hanes manual we have did not represent this wire coming from the AFM to the ECU. In fact it did not have it in the diagram at all. So I traced it back through the loom to where it broke from the AFM. We decided to use an electrical harness connector and then heat shrink everything back together.
After we re-wrapped the entire harness back together making sure that it was nice and tight. After doing this it was clear that we had created more room for the harness to sit in between the Upper intake, lower intake and fuel rail.
Which I feel is an issue that everything was crammed in there to begin with.
Top that off with 23+ year old wiring, and you are in for a potential issue.
So after resetting the TPS for what seemed like the 100th time, got her back together, he test drove it and came back with a smile on his face.
I think that he and I learned a valuable lesson, and that's not to give up, keep trying every angle, ask for help when you need it, take all the advice you can get, and again never give up!!
Thanks for all the help guys. Its greatly appreciated. This one threw me for a loop
#35
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Great job on finding the broken wire in the bowl of spaghetti they call a wiring harness. Chasing wires is frustrating on these but it feels good getting it fixed. Great job guys!!!
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