Anyone have a service manual handy?

[J DAWG]

Can you tell me what cylinder pin #3 (red/yl wire) on the black connector at the pcm controls. I know it is an ignition wire, but can't recall what cylinder it goes to.



Thanks
John

[JGK95]

John,

Use a .22 or a .23 whatever works (Mr. Mom Quote)[img]/images/graemlins/laughing.gif[/img]

[TOM B]

Are you talking about terminal #3 of the black pcm connector?

[TOM B]

That is the ignition coil #3 driver circuit.

[TOM B]

POWERTRAIN CONTROL MODULE C1 - BLACK 32 WAY CAV CIRCUIT FUNCTION
1 K32 18YL/GY IGNITION COIL NO. 4 DRIVER
2 F12 18DB/GY FUSED IGNITION SWITCH OUTPUT (RUN-START)
3 K18 18RD/YL IGNITION COIL NO. 3 DRIVER
4 K4 18BK/LB SENSOR GROUND
5 K43 18DG/GY IGNITION COIL NO. 5 DRIVER
6 - -
7 K19 18BK/GY IGNITION COIL NO. 1 DRIVER
8 K24 18GY/BK CRANKSHAFT POSITION SENSOR SIGNAL
9 K17 18DB/TN IGNITION COIL NO. 2 DRIVER
10 K60 18YL/BK IDLE AIR CONTROL NO. 2 DRIVER
11 K40 18BR/WT IDLE AIR CONTROL NO. 3 DRIVER
12 - -
13 - -
14 - -
15 K21 18BK/RD INTAKE AIR TEMPERATURE SENSOR SIGNAL
16 K2 20TN/BK ENGINE COOLANT TEMPERATURE SENSOR SIGNAL
17 K7 18OR 5V SUPPLY
18 K44 18TN/YL CAMSHAFT POSITION SENSOR SIGNAL
19 K39 18GY/RD IDLE AIR CONTROL NO. 1 DRIVER
20 K59 18VT/BK IDLE AIR CONTROL NO. 4 DRIVER
21 - -
22 F43 16PK/WT FUSED B(+)
23 K22 18OR/DB THROTTLE POSITION SENSOR SIGNAL
24 K241 18LG/RD OXYGEN SENSOR 1/1 SIGNAL
25 K341 18PK/WT OXYGEN SENSOR 1/2 SIGNAL
26 K41 18BK/DG OXYGEN SENSOR 2/1 SIGNAL
27 K1 20DG/RD MANIFOLD ABSOLUTE PRESSURE SENSOR SIGNAL
28 - -
29 K141 18TN/WT OXYGEN SENSOR 2/2 SIGNAL
30 - -
31 Z12 14BK/TN GROUND
32 Z12 14BK/TN GROUND

[J DAWG]

Thanks Original. So it drives # 3 cylinder?


I am having a misfire code(302) which is cylinder # 2 and was wondering since I tied into that wire if it was the culprit to my misfire code on cylinder 2.

[1TONY1]

Originally Posted by J DAWG

Thanks Original. So it drives # 3 cylinder?


I am having a misfire code(302) which is cylinder # 2 and was wondering since I tied into that wire if it was the culprit to my misfire code on cylinder 2.

Each coil will drive two cylinders and #3 coil doesn't necessarily mean cylinder #3.

[J DAWG]

Originally Posted by 1TONY1

Each coil will drive two cylinders and #3 coil doesn't necessarily mean cylinder #3.

so how do I find out what 2 cylinders it drives?

[TOM B]

#2 and #3 coil drivers are responsible for cylinders 5, 8, 9 and 10. So if you have a #2 misfire, start looking elsewhere. Could even be something as simple as the plug wire not fully seated or a fouled plug. Good luck.

[J DAWG]

I am with ya on the plugs. I added the spray and dropped to colder plugs and with my 2001 pcm I expected some misfire codes to start popping up. Car runs great and the code pops up at cruise usually around 1500-2000 rpms in 4th or 5th.


Thanks
John