Coil per cylinder 4.3?

[ericjon262]

ok, so we all know the 0411 PCM is capable of CPC, and some of us know the 4.3 S10 also uses the 0411. The 4.3 doesn't use CPC though, it uses some kind of distributor setup, much like that of the 5.0 and 5.7 vortec engines. has anyone converted a 4.3 to run on a 0411 with CPC?

wiring pinouts for the S10 and typical V8 0411(trans am IIRC).

blue	2002 S-10 4.3	Typical V8 0411
1	ground	ground
2	12v ref	12V reference
3	-	Fuel injector #3
4	Fuel injector #4	Fuel injector #2
5	-	-
6	-	-
7	-	-
8	5v ref	-
9	Knock sensor signal	-
10	-	-
11	-	KS #2 signal
12	Crank pos signal	Crank position signal
13	-	Requested torque signal
14	-	UART serial data secondary
15	-	UART serial data tertiary
16	-	-
17	Trans fluid pressure switch signal B	Trans fluid pressure switch signal B
18	Trans fluid pressure switch signal C	Trans fluid pressure switch signal C
19	IGN+	IGN+
20	B+	B+
21	Low ref	Low ref
22	-	-
23	Low ref	Low ref
24	-	-
25	HO2S low bank2 sensor 1	HO2S low bank2 sensor 1
26	HO2S low bank2 sensor 2	HO2S low bank2 sensor 2
27	-	-
28	HO2S low signal bank 1 sensor 2	HO2S low signal bank 1 sensor 2
29	HO2S low signal bank 1 sensor 1	HO2S low signal bank 1 sensor 1
30	Coolant level switch signal	Coolant level switch signal
31	-	-
32	Transmission range signal A	Transmission range signal A
33	TCC brake switch signal	TCC brake switch signal
34	Transmission range switch signal P	Transmission range switch signal P
35	CPP switch signal	CPP switch signal
36	Fuel injector #1	Fuel injector #1
37	Fuel injector #3	Fuel injector #6
38	-	Damping lift/dive signal
39	-	-
40	ground	ground
41	-	Low ref
42	-	-
43	Fuel injector #5	Fuel injector #7
44	-	Fuel injector #5
45	-	FTP 5V ref
46	5v ref	TPS 5V ref
47	-	MAP 5V ref
48	5v ref	EGR 5V ref
49	Low ref	-
50	-	-
51	-	KS bank 1 signal
52	-	-
53	Low ref (RPO M30 only)	Low reference
54	Low ref	Low reference
55	-	EGR valve position signal
56	-	-
57	B+	B+
58	Class II serial	Class II serial
59	Class II serial	Class II serial
60	Low ref	Low ref
61	Low ref	Low ref
62	-	-
63	HO2S low ref	Low ref
64	-	-
65	-	HO2S high signal bank 2 sensor 2
66	HO2S High signal	HO2S high signal bank 2 sensor 1
67	-	-
68	HO2S high signal	HO2S high signal bank 1 sensor 2
69	HO2S high signal	HO2S high signal bank 1 sensor 1
70	-	Oil level switch
71	-	-
72	Trans range switch signal B	Trans range switch signal B
73	Cam position signal	Cam position signal
74	ECT signal	ECT signal
75	B+(RPO M30 only)	B+
76	Fuel injector #3	Fuel injector #5
77	Fuel injector #6	Fuel injector #8
78	-	-
79	3-2 shift solenoid control	3-2 shift solenoid control
80	Low ref	Low ref

Red	2002 S-10 4.3	Typical V8 0411
1	Ground	Ground
2	TCC PWM solenoid control	TCC PWM solenoid control
3	-	Secondary fuel pump relay control
4	-	-
5	-	Delivered torque signal
6	PC solenoid high control (A)	PC solenoid high control (A)
7	-	EGR supply voltage
8	PC solenoid low control(A)	PC solenoid low control(A)
9	Primary fuel pump relay control	Primary fuel pump relay control
10	Engine speed signal	Engine speed signal
11	-	AC high pressure recirc switch signal
12	-	-
13	Cruise status	Cruise status
14	-	-
15	Generator turn on signal	Charge indicator control
16	4wd low signal	4wd low signal
17	AC request	AC request
18	-	-
19	Axle switch signal	Axle switch signal
20	VSS low	VSS low
21	VSS high	VSS high
22	-	ISS high
23	-	ISS low
24	TPS signal	-
25	IAT signal	IAT signal
26	IC timing signal	Coil 1 control
27	-	Coil 7 control
28	--	Coil 6 control
29	-	Coil 4 control
30	-	-
31	MAF signal	MAF signal
32	MAP signal	MAP signal
33	-	Recirc actuator control
34	EVAP purge control	EVAP purge control
35	-	-
36	-	AIR pump relay
37	-	-
38	-	-
39	12V ref	12V ref
40	ground	ground
41	-	EGR solenoid control
42	TCC solenoid control	TCC solenoid control
43	AC relay control	AC relay control
44	-	-
45	EVAP vent control	EVAP vent control
46	SES light	SES light
47	2-3 shift solenoid	2-3 shift solenoid
48	1-2 shift solenoid	1-2 shift solenoid
49	Vehicle speed signal	Vehicle speed signal
50	VSS signal	VSS signal
51	Trans fluid temp signal	Trans fluid temp signal
52	Generator field duty cycle signal	Generator field duty cycle signal
53	-	-
54	Low ref	Fuel level signal(primary)
55	AC low pressure switch signal	AC low pressure switch signal
56	-	-
57	Low ref	Low ref
58	-	-
59	-	-
60	-	Low ref
61	-	Low ref
62	Trans range switch signal C	Trans range switch signal C
63	Trans pressure switch signal A	Trans pressure switch signal A
64	STP pressure signal	STP pressure signal
65	-	-
66	-	Coil 8 control
67	-	Coil 2 control
68	-	Coil 5 control
69	-	Coil 3 control
70	-	-
71	-	-
72	HO2S heater low control bank 2 sensor 1	HO2S heater low control bank 2 sensor 1
73	-	Fuel level signal (secondary)
74	HO2S heater high control bank 2 sensor 1	HO2S heater high control bank 2 sensor 1
75	-	-
76	IAC coil B high control	IAC coil B high control
77	IAC coil B low control	IAC coil B low control
78	IAC coil A low control	IAC coil A low control
79	IAC coil A high control	IAC coil A high control
80	HO2S heater low ref	Low ref

[JeepsAndGuns]

I remember asking about this one time in the past. I was thinking about using a 411 to run a jeep 4.0 engine, and was wondering if DIS (coil per plug) was possiable. If I remember correctly, since it had never been done from the factory, it probably wasnt doable. Something about no crank trigger wheels and code to support it.
I think if a person was smart enough and knew the code in the pcm well enough, I think it could be hacked and done. Maybe convert a V8 bin to run the 6cyl? Not sure if the V8 trigger wheel could be used or if a custom one would have to be designed and code written to use it.

My guess is since there is such a low demand for doing this, no one has felt the need to do it. But I'm thinking if a TBI PCM can be hacked to run MPFI and use a MAF, then why couldnt the 411 be converted to run a 6cyl DIS?

[ericjon262]

I was kinda figuring I would get a response like that. I would love to start learning the actual code and how to manipulate it. I will eventually, but I think I'm going to be a bit too wrapped up in school for the next year or two.

[34blazer]

I was kinda figuring I would get a response like that. I would love to start learning the actual code and how to manipulate it. I will eventually, but I think I'm going to be a bit too wrapped up in school for the next year or two.

TRUTH. Youre never out of upgrade long enough before you start another. Want a good EPR, there goes all your free time! LOL

[ericjon262]

meh, I'll make it happen. might use the 0411, might go another route, like the shortstar PCM. we'll see.

[Hog]

The newer 4.3 used in the GMT900 trucks used 3 coils mounted in teh position where teh distributer sits. I'm sure you could wire it up to use either CNP (Coil Near Plug) like on tyhe LS1/2/3/4/7/9/A or COP(Coil On Plug) like is used on the Ecotec 4 cyls etc.
Here is the 2007+ LU3 4.3 with the 3 coils and long high tension wires


Here is the 2007 and earlier 4.3 with crab style distributer used in the GMT 400 and GMT 800 trucks. Uses a single coil.


Here is the brand new Direct Injection Ecotec 4.3 used in teh new 2014+trucks, as you cans ee it uses CNP ignition with the short high tension wires


peace
Hog