Toyota Tacoma manuals

Toyota Corolla Repair Manual: System too lean/rich

Dtc p0171 system too lean (bank 1)

Dtc p0172 system too rich (bank 1)

Inspection procedure
Hint: handheld tester only: narrowing down the trouble area is possible by performing a/f control active test (heated oxygen sensor or other trouble areas can be distinguished). Perform ac ...

Circuit description
The fuel trim is related to the feedback compensation value, not to the basic injection time. The fuel trim includes the shortterm fuel trim and the longterm fuel trim. The shortterm fuel tri ...

Other materials:

Inspection procedure
1 Reconfirm dtc Check the dtc 2 Inspect skid control ecu connector securely connected 3 Inspect skid control ecu connector(ig1 terminal voltage) In case of using handheld tester:  check the voltage condition output from the ecu displayed on the handheld tester. Ok: ...

Tire pressure warning system (if equipped)
Your vehicle is equipped with a tire pressure warning system that uses tire pressure warning valves and transmitters to detect low tire inflation pressure before serious problems arise. ◆ Installing tire pressure warning valves and transmitters When replacing tires or wheels, tire press ...

Inspection procedure
1 Check p squib circuit(airbag sensor assy center instrument panel passenger airbag assy) Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connector between the airbag sensor assy center and the instrument panel pass ...

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