Cold no start
Tuned
Joined: Mar 2007
Posts: 365
Likes: 0
From: Alberta, Canada
The ICP connector is 3 pins, A, B, C. Looking at the connector the 2 pins in the same orientation are A and B, C is oriented 90 degrees to the other 2. Pin A is pin 25 on the PCM engine harness connector, pin B is pin 36 and pin C is pin 29.
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Cargo Master
Joined: Mar 2007
Posts: 3,103
Likes: 32
From: AB/BC
I am looking for the current path for pin 29 on the other side of the PCM.I have it traced it to a ten pin connector. Does anyone know the location of that connector?X I owe you a beer or two.lol
Tuned
Joined: Mar 2007
Posts: 365
Likes: 0
From: Alberta, Canada
If you're looking for the path for pin 29 what did you find?
Do you have an open condition between pin C and pin 29 or do you have a low voltage condition on the ICP PID when pins B and C are jumpered?
From what I am seeing on my diagrams pin 29 terminates in the PCM, maybe I'm incorrect though.
Do you have an open condition between pin C and pin 29 or do you have a low voltage condition on the ICP PID when pins B and C are jumpered?
From what I am seeing on my diagrams pin 29 terminates in the PCM, maybe I'm incorrect though.
Thread Starter
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Cargo Master
Joined: Mar 2007
Posts: 3,103
Likes: 32
From: AB/BC
Pin 29 is showing .003 with ignition on. Its way out .2 is what I am looking for.I had the drink I needed when I saw that.
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Tuned
Joined: Mar 2007
Posts: 365
Likes: 0
From: Alberta, Canada
Just so I'm sure of what you're doing, because you're pinpoint tests seem to be a little different than the one's I'm looking at, are you checking the voltage on pin C with the ignition on?
Did you check the resistance between pin 29 and pin C with the PCM connector diconnected?
The 0.003 and 0.2 you referred to, are those resistance values or voltage values?
Did you check the resistance between pin 29 and pin C with the PCM connector diconnected?
The 0.003 and 0.2 you referred to, are those resistance values or voltage values?
Thread Starter
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Cargo Master
Joined: Mar 2007
Posts: 3,103
Likes: 32
From: AB/BC
Yes. the wire from the ICP to the PCM is good,no resistance.It isn't getting signal on PCM side. The connector I am after has Map,Maf & Iap it looks like a couple of grounds and a bunch of other stuff on the connector.
Tuned
Joined: Mar 2007
Posts: 365
Likes: 0
From: Alberta, Canada
Sorry, I had to go forage for food 
Do your diagrams give connector numbers? On mine I think the connector you're looking for is C1444. Which according to my manual is a 16 pin connector located in the left hand rear of the engine compartment underneath the auxiliary relays. the should be a bundle of 5 connectors there, C1444 should be the middle one. If you follow the wire for the air filter minder you sould be able to find the 5 connectors.
Just for reference it should have the following wires on it:
pin wire color
(1) 3073 (RD/WH)
(2) 3072 (PK/YE)
(3) 3091 (LB/BK)
(4) 351 (BN/WH)
(5) 356 (DB/LG)
(6) --
(7) 5 (OG/LB)
(8) 911 (DG/LG)
(9) 9 (DG/YE)
(10) 142 (LB/RD)
(11) 133 (BK)
(12) --
(13) 787 (PK/BK)
(14) --
(15) 3076 (YE)
(16) --
I think it's wires 351 and 356 that you are looking for.
Hope this is clear as mud.....
Do your diagrams give connector numbers? On mine I think the connector you're looking for is C1444. Which according to my manual is a 16 pin connector located in the left hand rear of the engine compartment underneath the auxiliary relays. the should be a bundle of 5 connectors there, C1444 should be the middle one. If you follow the wire for the air filter minder you sould be able to find the 5 connectors.
Just for reference it should have the following wires on it:
pin wire color
(1) 3073 (RD/WH)
(2) 3072 (PK/YE)
(3) 3091 (LB/BK)
(4) 351 (BN/WH)
(5) 356 (DB/LG)
(6) --
(7) 5 (OG/LB)
(8) 911 (DG/LG)
(9) 9 (DG/YE)
(10) 142 (LB/RD)
(11) 133 (BK)
(12) --
(13) 787 (PK/BK)
(14) --
(15) 3076 (YE)
(16) --
I think it's wires 351 and 356 that you are looking for.
Hope this is clear as mud.....
Tuned
Joined: Mar 2007
Posts: 365
Likes: 0
From: Alberta, Canada
Little bit of extra info, looks like the VREF from the PCM (wire 351) comes from a least 2 pins on the PCM pins 36 and 45. If you're not getting any signal voltage I think you're going to need another drink because the PCM is likely a boat anchor.....
I hope you find something disconnected.
I hope you find something disconnected.
Thread Starter
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Cargo Master
Joined: Mar 2007
Posts: 3,103
Likes: 32
From: AB/BC
BINGO.X all I want is this sorted.I took time off work for the first time in 4 yrs to learn all I can on this motor.Man am I getting a lesson.PS The wife it seems for some reason still appears to love me...though I haven't seen her in a couple weeks.lol
Thread Starter
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Cargo Master
Joined: Mar 2007
Posts: 3,103
Likes: 32
From: AB/BC
I hope I have the problem narrowed down(thanks to a little help from my friends)to the ten pin connector that has 3 logic 2 voltage 2 ground.It comes out of the PCM but where does it go.#37 -29- 20- 25- Any Idea where these go into the harness.