Briggs & Stratton BIG BLOCK EFI, Repair Manual

Page: 33 / 142

Section 2: Troubleshooting DTCs 29
Step Action Yes No
1
1. Disconnect and reconnect MAT sensor and ECM J2
(Black) connectors.
2. Turn Ignition ON, Engine OFF.
3. Clear codes.
4. Turn Ignition OFF, and then back ON.
5. Does DTC return?
Go to step 2.
Problem
corrected.
2
1. Turn Ignition OFF.
2. Back probe terminal 2 (Red/White wire) of MAT
sensor connector.
3. Connect terminal 2 back probe to red meter test
lead on DVOM.
4. Back probe terminal 4 (Brown wire) of MAT sensor
connector.
5. Connect terminal 4 back probe to black meter test
lead on DVOM.
6. Set DVOM to read volts DC.
7. Turn Ignition ON, Engine OFF.
8. Observe voltage on DVOM.
9. Is reading 4.7-5.0 volts DC?
MAT sensor OK. Go to step 3.
3
1. Turn Ignition OFF.
2. Remove probe from terminal 2, and back probe
terminal 3 (Tan/Black wire) of MAT sensor connec-
tor.
3. Turn Ignition ON, Engine OFF.
4. Observe voltage on DVOM.
5. Is reading 0.5-4.5 volts DC?
MAT sensor OK.
Reading is above
4.5 volts DC.
Replace
MAT sensor.
DTC P0113 Manifold Air Temperature (MAT) Sensor
Non-Scan Diagnostics
3 2
4
Figure 2-19 MAT Sensor Connector.