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I need distributor wire colors and pin locations?

Tiny
SIZWE AMOS
  • MEMBER
  • 1993 MAZDA 626
  • 2.0L
  • 4 CYL
  • 2WD
  • MANUAL
  • 300,000 MILES
Hi there

I have the car listed above, FS 2.0 engine, which damaged the male plugs which plugs into the distributor. There are two male plugs in total, one 6-pin and the other 3-pin.

Now, the diagrams I have found are different by two or three colors on the 6-pin connector none match my wires exactly. The wire colors are as follows:

Thick black/white - 12v from ignition switch
Green - to tacho
Black/yellow
Yellow/white
Orange
Black/red (this one goes into data link connector)
Thick Red/black
Black - Ground
Yellow

I know that the BLK/WHT is 12v from switch GRN is TACH signal both of these go into the 3 pin plug the last third one I do not know. I know though that if I sort out the rest, all of the others will be sorted out by default.

All the diagrams I was able to find do not match my customer's car exactly. So, I do not want to risk frying the PCM.

If someone could help me with the pin diagram and wire colors. Pretty please.

Sizwe
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Friday, June 16th, 2023 AT 1:27 PM

15 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,070 POSTS
Here are the engine and wiring diagrams so you can rewire the distributor correctly. Check out the images (below). Please let us know if you need anything else to get the problem fixed.
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Friday, June 16th, 2023 AT 3:04 PM
Tiny
SIZWE AMOS
  • MEMBER
  • 17 POSTS
What a joy to have such a site. Now Ken L, I need the pin out diagram of the distributor. I can see the yellow/white, but I do not know on which terminal does it go to into the distributor.

That is my small problem now.

Again, thank you a million times.
Sizwe
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Friday, June 16th, 2023 AT 11:51 PM
Tiny
KEN L
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Good to hear, below is the connector view. Check out the images (below). Please let us know if you need anything else to get the problem fixed.
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Saturday, June 17th, 2023 AT 9:52 AM
Tiny
SIZWE AMOS
  • MEMBER
  • 17 POSTS
I do not know what to say. I will get paid when I fix this, and I owe you guys a donation. It won't be much, but it will come from my heart.

I was struggling for weeks man.

Can I have the connector diagram for the other 3pin plug? And PCM pin out too?

Sizwe
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Saturday, June 17th, 2023 AT 10:46 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 43,070 POSTS
Don't worry about it, we like helping people :) I believe this is what you need, check out the images (below). Please let us know how it goes.
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Monday, June 19th, 2023 AT 10:32 AM
Tiny
SIZWE AMOS
  • MEMBER
  • 17 POSTS
Hi Ken, sorry for the late reply.

I was repairing the wires and I thank you very much.

Back to my saga. I connected everything but the distributor is not producing spark. If I set the engine to TDC and loosen the distributor hold-down bolt (there 2 in fact) and swiftly move it back and forth I get no spark. Even when I crank no spark.

I found the 30A INJ fuse that powers the red/black wire burnt and replaced it but still no spark.

I thà nk we have a distributor problem, what do you think? How can I test the sensors inside the distributor?

Sizwe
Much thanks in advance timing.
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Sunday, June 25th, 2023 AT 1:21 PM
Tiny
KEN L
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Yep, it sounds like the coil is shorted, I would try removing the wires from it to see if the fuse still pops. Let me know.
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Monday, June 26th, 2023 AT 11:45 AM
Tiny
SIZWE AMOS
  • MEMBER
  • 17 POSTS
Hi Ken,

I disassembled everything with the intention of testing the coil. Upon testing (grounding the negative side of primary winding) the wire arcs like there is a short. The coil produces no spark either. I swapped the wires thinking that I might have shorted it out, but it shuts off the same thing,

It looks like the coil is toasted.

Sizwe
Thanks in advanced timing.
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Monday, June 26th, 2023 AT 12:08 PM
Tiny
KEN L
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Yep, that's what I thought it could be, good job finding the problem. Use 2CarPros anytime, we are here to help. Please tell a friend.
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Tuesday, June 27th, 2023 AT 9:08 AM
Tiny
SIZWE AMOS
  • MEMBER
  • 17 POSTS
Hi Ken,

The coil should produce spark when the negative side of coil is grounded, right? Also, when the wires were connected to the distributor with KOEO and cranked the negative tachometer output wire did not flicker while cranking. So, I believe the ignition control module is toast too.

I then checked for resistance on the 6 pin terminals, and I got no continuity save for the last two terminals. I got a value of 50ohms, a value I am fishy about. Could you help me with confirming that that ICM is also toast?

Sizwe
Thanks, in advanced timing.
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Tuesday, June 27th, 2023 AT 12:35 PM
Tiny
KEN L
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If the coil is shorted you won't get a pulse unless you remove the negative wire from the coil, if you still don't get a pulse it will be the module or the pickup.
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Wednesday, June 28th, 2023 AT 10:39 AM
Tiny
SIZWE AMOS
  • MEMBER
  • 17 POSTS
I guess the coil is shorted because I grounded the negative wire for 1 second at mist trying to imitate the ICM but no spark.
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Wednesday, June 28th, 2023 AT 12:29 PM
Tiny
KEN L
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Yep, it sounds like the coil is shorted which is common.
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Thursday, June 29th, 2023 AT 10:16 AM
Tiny
SIZWE AMOS
  • MEMBER
  • 17 POSTS
I am now hunting down a new distributor. I will post the outcome.

Thanks
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Saturday, July 1st, 2023 AT 6:33 PM
Tiny
KEN L
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Okay, please let me know what happens.
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Monday, July 3rd, 2023 AT 12:28 PM

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