Apr 1, 2012 at 11:41 PM
Engine has stalled
1993 FORD RANGER
Advertisement
That is it wont close the relay in the first place
I get.somebody to turn key i checking and its not coming at all
Apr 1, 2012 at 11:57 PM
Advertisement
Ok. That means we need to check it for the ground signal at the PCM.
Ok. Locate the orange and light blue wire on the datalink connector. It should be set to ground during start and run. Follow that orange and light blue wire to the PCM, Pin 22. With the key in start or run, that should also be set to ground. This is the ground signal that matches the positive signal through the ignition switch. If there is no continuity to ground at any of the light blue/orange wires, you either have a bad wire, or if it goes all the way to Pin 22, a bad PCM.
Ok. Locate the orange and light blue wire on the datalink connector. It should be set to ground during start and run. Follow that orange and light blue wire to the PCM, Pin 22. With the key in start or run, that should also be set to ground. This is the ground signal that matches the positive signal through the ignition switch. If there is no continuity to ground at any of the light blue/orange wires, you either have a bad wire, or if it goes all the way to Pin 22, a bad PCM.
Apr 2, 2012 at 1:28 AM
So is it just one wire and where they run it going to pcm
Apr 2, 2012 at 1:33 AM
According to the schematic I have, yes, one wire. And I have no idea how or where they'd route it. Find the PCM to start. Or follow it from the relay. Or both.
Apr 2, 2012 at 3:34 AM
I see wire coming from eec test but it goes inside a big wrapped up thing and i cant find where it comes out
Apr 2, 2012 at 3:00 PM
I am checking power now i have to powers one is 30&86 30 has power all time and when i turn key on 86 does and never goes off until key is off
Apr 2, 2012 at 3:05 PM
Also have no power at coil
Apr 2, 2012 at 3:08 PM
Ok. Pins 86 and 30 are good, then. You should see Pin 85 going to ground for 2 seconds when you turn the key to on. If not, you'll have to undo the wrapping to see where it goes and what's wrong with it.
But test the output at the PCM first. Next, find and test it at the datalink. Locate the fault between the two components where signal is lost.
But test the output at the PCM first. Next, find and test it at the datalink. Locate the fault between the two components where signal is lost.
Apr 2, 2012 at 5:20 PM
Its has ground all the time i cant ever get power to it or is it suppose to ground the get power cuz im not getting anything key off no power keu on no power
Apr 2, 2012 at 5:24 PM
No. Pin 85 goes to ground when the key is turned on. For two seconds, unless the engine starts, then it stays grounded. You need a continuity tester. Hook the alligator to ground, and probe Pin 85 when the key is turned on. Then do the datalink. Then do Pin 22 of the PCM. If Pin 22 doesn't show continuity to ground for 2 seconds, the PCM is at fault. If it does, the wiring is. And you'll have to trace it.
Apr 2, 2012 at 5:40 PM
Ok i got to get a meter then today when i do ill tell u which it is
Apr 2, 2012 at 5:41 PM
Ok. We'll be here.
Apr 2, 2012 at 6:15 PM
I think i found pcm and it has to plug in now idk what to check and i try to add a pic but it wont let me it was in a green case that covered it
Apr 2, 2012 at 11:04 PM
Look for the orange and blue wire and see if there is continuity between it and ground for 2 seconds after the key is turned on. If yes, locate the same wire on the datalink and check it. If no, it sounds like a bad PCM.
Apr 3, 2012 at 12:19 AM
Is that a 93 i have a book it says under right side kick panel
Apr 3, 2012 at 12:32 AM
Hey i have continuty when key is on and off so that means a bad wire right i have continuty at pcm where do i check now
Apr 3, 2012 at 2:10 PM
Also have no continuty at pin 85
Apr 3, 2012 at 2:15 PM
I think u mint pin 21 cuz it goes to pin 85 pin 22 dosent go to the relay and pin 21 has no continuty
Apr 3, 2012 at 3:22 PM
Plz answer quick as possible i would greatly appreciate it
Apr 3, 2012 at 3:24 PM
According to our reference, the ground signal for the fuel pump is Pin 22 on the PCM. If the light blue/orange wire is on Pin 21, then maybe my eyes aren't as good as I thought. That wire goes from there to the datalink connector. Check to see if you have continuity to ground at the datalink for 2 seconds when you turn the key on.
Yes, it's a 93. Your book may be showing the location for a 4 cylinder.
Yes, it's a 93. Your book may be showing the location for a 4 cylinder.
Apr 3, 2012 at 11:56 PM
Ok i didnt have no continuty at the light blue orage by the pcm and a pcm is 185 :(
Apr 4, 2012 at 12:01 AM
You're right. It's pin 22
Apr 4, 2012 at 12:02 AM
U mean 21 lol
Apr 4, 2012 at 12:07 AM
No, I mean it's connected to pin 22.
21 is the IAC output.
21 is the IAC output.
Apr 4, 2012 at 12:11 AM
O ok so check eec tester then if no continuty then what
Apr 4, 2012 at 12:21 AM
If there is no continuity between the light blue/orange wire to ground for the first 2 seconds.
Wait, didn't you say there was no ground signal AT ALL, EVER at Pin 22 of the PCM? No ground there means a bad PCM.
Wait, didn't you say there was no ground signal AT ALL, EVER at Pin 22 of the PCM? No ground there means a bad PCM.
Apr 4, 2012 at 1:05 AM
Why don't you just try ground that wire with the key on and see if the pump runs. At least that will tell you if the rest of the circuit is OK.
Apr 4, 2012 at 1:21 AM
I did ground it out and the pump runs fine i got fuel to rail but i had no continty at all
Apr 4, 2012 at 1:49 AM
Did you ground it at the engine side or the computer end? If the engine side, try it from the computer side to see if the wire is good.
Apr 4, 2012 at 1:54 AM
I grounded it from the eec tester and it works and.if i ground out the relay on pin 85 it runs but with out that ground it wont run
Apr 4, 2012 at 1:57 AM
I'm aware of that. I need you to locate the same wire where it goes into the computer on pin 22 and try it from there to tell us if the wire is good all the way through.
Apr 4, 2012 at 2:01 AM
Ok but it is actually pin 21
Apr 4, 2012 at 2:11 AM
No, it is not. It is pin 22 which is the second one in from the end on the middle row. I have looked at both California and Federal diagrams for that year and they are all pin 22.
Apr 4, 2012 at 2:16 AM
I lokked at it pin 22 dosent run to thevrelay or eec but 21 does i promise u that that ur lookin at is wrong its a white wire on 22 on 21 its lb/orange and thats the color wire ur looking at as rivermikerat i even told him and he looked again and said i was correct
Apr 4, 2012 at 11:20 AM
I'm looking at it wrong? OK, I though I might be able to help you but I certainly don't intend to make another 60 posts trying to do that. Good luck.
Apr 4, 2012 at 11:33 AM
Not being mean but really wgat wire color does it show cuz it say lb and orange and that pin 21 on pcm im just saying rivemikerat even said that it.was pin 21 ask him
Apr 4, 2012 at 1:16 PM
I don't have to ask him anything. It's all right here to read and he never said that. There are over 60 posts here and you are no closer to finding your problem and it has to end.
I'm not here to debate you about this.
I'm not here to debate you about this.
Apr 4, 2012 at 1:34 PM
That dosent even look like my computer
Apr 4, 2012 at 1:49 PM
