Table of Contents
6-2-110 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
Step
9
Engine mechanical systems check.
Check engine mechanical parts or system which can
cause engine rough idle or poor performance.
– Engine compression (Refer to "Compression
Check" in Section 6A2.)
– Valve lash adjustor (Refer to "Valve Lash (Clear-
ance) Inspection in Section 6A2.)
– Valve timing (Refer to "Timing Chain and Chain Ten-
sioner Removal and Installation in Section 6A2.)
Are they in good condition?
DTC P0327 Knock Sensor Circuit Low
DTC P0328 Knock Sensor Circuit High
Wiring Diagram
E23
7
6
5
4
17
16
15
14
13
12
27
26
25
24
23
22
34
33
32
1. Knock sensor
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
DTC will be set when all of the following conditions are
detected for 0.5 seconds continuously.
P0327
• Engine is running
• Voltage of knock sensor is less than 1.23 V
P0328
• Engine is running
• Voltage of knock sensor is 3.91 V or more
Action
1
E22
3
2
1
7
6
5
4
3
11
10
9
8
19
18
17
16
15
14
13
12
21
20
19
18
27
26
25
24
31
30
29
28
35
34
33
32
2. ECM
Check wire harness
and connection of
ECM ground, ignition
system and fuel injec-
tor for intermittent
open and short.
WHT
E21
2
1
6
5
4
3
11
10
9
8
16
15
14
13
12
11
10
9
23
22
21
20
27
26
25
24
23
22
21
20
31
30
29
28
35
34
33
32
31
• Open or short in knock sensor circuit
• Knock sensor
• ECM
Yes
Repair or replace.
2
E22-9
2
1
8
7
19
18
17
30
29
28
Trouble Area
No
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