Temperature Manifold Pressure (Tmap) And Map Sensor Troubleshooting - Kohler KG2204 Service

4.10. Temperature Manifold
Pressure (TMAP) and MAP
Sensor Troubleshooting
1. TMAP sensor
2. Wire harness connector
Figure 4-23 TMAP Sensor, KG2204 and KG2204T
1. MAP sensor
Figure 4-24 MAP Sensor, KG2204T
WARNING
Hot parts can cause severe burns.
Do not touch engine while operating or just after
stopping.
Never operate engine with heat shields or guards
removed.
TP-6903 5/16a
1
2
1
WARNING
Rotating parts can cause severe injury.
Stay away while the engine is in operation.
Keep hands, feet, hair, and clothing away from all moving
parts to prevent injury. Never operate the engine with
covers, shrouds, or guards removed.
35
1
40A
2
TMAP
Sensor
74
3
N1
4
N2
To TP
40B
sensor
Figure 4-25 TMAP Sensor Wiring Diagram
13
1
40C
MAP
2
Sensor
3
N7
4
N2
40B
Figure 4-26 MAP Sensor Wiring Diagram,
KG2204T
Use the following steps to troubleshoot the TMAP and
MAP sensors. Check both the MAP and IAT portions
of the TMAP sensor. Refer to Figure 4-25 and follow
the steps in the troubleshooting chart to verify that:

The TMAP sensor is working correctly and is
not damaged.

The sensor leads have continuity (no open
circuits).

The sensor leads are not shorted.
Electrical System and Sensor Troubleshooting
P26-35, MAP sensor signal
40
P26-40, Sensor +5V
P26-74, IAT sensor signal
N
P26-70, Sensor ground
ECM
P26-13 MAP sensor signal
40
P26-40 Sensor +5V
N
P26-70, Sensor ground
ECM
77