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How the PVC System Works:
A closed crankcase ventilation system must be used in order to provide
a more complete scavenging of crankcase vapors. Filtered air from
the air induction system (air cleaner) duct is supplied to the crankcase,
mixed with blow-by vapors, and passes through a crankcase ventilation
metering device before entering the intake manifold. The primary
component in the positive crankcase ventilation (PCV) system is the
PCV flow metering orifice. Vacuum changes within the intake manifold
result in flow variations of the blow-by vapors. If abnormal operating
conditions occur, the design of the PCV system permits excessive
amounts of blow-by vapors to back flow through the crankcase vent tube
and into the engine induction system (air cleaner) to be consumed during
normal combustion. This engine ventilation system design minimizes
oil consumption and significantly reduces the potential for oil ingestion
during vehicle limit handling maneuvers.
ECM Connectors Pinouts:
ECM
Blue
Item C1
34576-0703 Connector
33467-0003 Term (22 GA)
33467-0005 Term (18 GA)
34586-0001 Plug
34575-003 Dress Cover
Wire
Circuit #
Pos
Gage
239M
10
22
419
12
22
465
13
22
239
19
18
1440
20
22
121
25
22
1164
33
22
1374
35
22
1271
36
22
1272
37
22
818
39
22
5069
40
22
PDL 1
47
22
PDL 2
49
22
473
54
22
All Other Positions to have Cavity Plugs
5.3L Crate Engine Control System
TITLE
Color
Pink
Power
Brown/White CEL Light
Green/White
Fuse Bus Pos 7A
Pink
Power
Red/White
Fuse Bus Pos 6G
Engine Speed Bulk
White
Head Pos C
White/Black
Pedal Module Pos F
Red
Pedal Module Pos C
Brown
Pedal Module Pos D
Purple
Pedal Module Pos A
Brown
Pin D Bulk Head
Brown
Fuse Bus Pin 1A
Blue
Pedal Module Pos E
Lt. Blue
Pedal Module Pos B
Blue
Fuse Bus 7D
ECM
Black
Item C2
34566-0103 Connector
33467-0003 Terminal (22 GA)
33467-0005 Terminal (18 GA)
7158-3113-40 Seal (1 each)
7116-4152-02 Term (1 each)
34586-0001 Plug (40 each)
34565-0003 Dress Cover
Circuit #
Pos
Wire Gage
2121
1
1664
2
1665
3
1876
6
407
7
496
8
1716
9
581
11
582
12
5290
13
5284
14
1746
16
2128
17
2124
18
2130
19
632
23
2755
24
1868
27
1704
28
1704A
29
1745
32
2127
33
2127A
34
2129
35
631
39
2705
40
552
42
1867
43
19258097
REV 28JN12
PART NO.
Color
22
Purple
Odd Coil Pin G
22
Tan
Odd Fr O2 Sensor Pos A
Purple/
22
Odd Fr O2 Sensor Pos B
white
22
Lt. Blue
Even Knock Pos A
22
Tan
Even Knock Pos B
22
Blue
Odd Knock Pos A
22
Gray
Odd Knock Pos B
22
Yellow
ETC Pos B
22
Brown
ETC Pos A
18
Pink/Black
Pos 1B Bulk Head
Cam Phaser Control
22
Purple
Pos D
Lt. Blue/
22
Injector 3 Pos B
Black
Purple/
22
Even Coils Pos G
white
Green/
22
Even Coils Pos C
White
Brown/
22
Even Coils Pos E
White
Cam Sensor Ground
22
Pink/Black
Pos B
Oil Pressure Sensor Rtn
22
Black
Pos A
Yellow/
Crank Sensor Ground
22
Black
Pos B
22
Pink/Black
Fuse Cavity 8J
22
Red/White
ETC Pos C
Lt. Green/
22
Injector 2 Pin B
Black
22
Orange
Odd Coil Pos B
22
Green
Odd Coil Pos C
22
Brown
Odd Coil Pos E
Cam Sensor Power
22
Orange
Pos A
Oil Pressure Sensor 5V
22
Gray
Ref Pos B
22
Tan
MAF Pos D
Crank Sensor Signal
22
Lt. Green
Pos C
SHEET
6
25
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