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:

Removal & installation and disassembly & reassembly
1. Remove oxygen sensor Remove a clip and tear off the floor mat.  disconnect a oxygen sensor connector. Remove the oxygen sensor. 2. Remove tail pipe assy Remove 2 bolts, 2 springs and tail pipe assy. 3. Remove floor panel brace front Remove 2 nuts and the ...

If a warning message or indicator is displayed (vehicles with a multi-information display)
If a warning is shown on the multi-information display, stay calm and perform the following actions: 1 Master warning light The master warning light also comes on or flashes in order to indicate that a message is currently being displayed on the multiinformation display. 2 Multi-information d ...

Adjustment
1. Put vehicle these conditions  tire inflation pressure is the specified value .  start the engine. 2. Adjust fog light aim The fog light aim can be adjusting by moving the aiming screw in the vertical direction. Hint: the optical aim moves upward when turning a scr ...

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