Engine has stalled

Tiny
REEDBONE
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Plz answer quick as possible I would greatly appreciate it
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Tuesday, April 3rd, 2012 AT 3:24 PM
Tiny
RIVERMIKERAT
  • MECHANIC
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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.
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Tuesday, April 3rd, 2012 AT 11:56 PM
Tiny
REEDBONE
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Ok I didnt have no continuty at the light blue orage by the pcm and a pcm is 185 :(
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Wednesday, April 4th, 2012 AT 12:01 AM
Tiny
WRENCHTECH
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You're right. It's pin 22
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Wednesday, April 4th, 2012 AT 12:02 AM
Tiny
REEDBONE
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U mean 21 lol
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Wednesday, April 4th, 2012 AT 12:07 AM
Tiny
WRENCHTECH
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No, I mean it's connected to pin 22.
21 is the IAC output.
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Wednesday, April 4th, 2012 AT 12:11 AM
Tiny
REEDBONE
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O ok so check eec tester then if no continuty then what
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Wednesday, April 4th, 2012 AT 12:21 AM
Tiny
RIVERMIKERAT
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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.
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Wednesday, April 4th, 2012 AT 1:05 AM
Tiny
WRENCHTECH
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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.
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Wednesday, April 4th, 2012 AT 1:21 AM
Tiny
REEDBONE
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I did ground it out and the pump runs fine I got fuel to rail but I had no continty at all
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Wednesday, April 4th, 2012 AT 1:49 AM
Tiny
WRENCHTECH
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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.
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Wednesday, April 4th, 2012 AT 1:54 AM
Tiny
REEDBONE
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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
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Wednesday, April 4th, 2012 AT 1:57 AM
Tiny
WRENCHTECH
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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.
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Wednesday, April 4th, 2012 AT 2:01 AM
Tiny
REEDBONE
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Ok but it is actually pin 21
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Wednesday, April 4th, 2012 AT 2:11 AM
Tiny
WRENCHTECH
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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.
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Wednesday, April 4th, 2012 AT 2:16 AM
Tiny
REEDBONE
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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
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Wednesday, April 4th, 2012 AT 11:20 AM
Tiny
WRENCHTECH
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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.
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Wednesday, April 4th, 2012 AT 11:33 AM
Tiny
REEDBONE
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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
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Wednesday, April 4th, 2012 AT 1:16 PM
Tiny
WRENCHTECH
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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.
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Wednesday, April 4th, 2012 AT 1:34 PM
Tiny
REEDBONE
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That dosent even look like my computer
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Wednesday, April 4th, 2012 AT 1:49 PM

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