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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:

Rear axle lh hub bolt
Replacement Hint: components: 1. Remove rear wheel 2. Remove rear brake drum subassy 3. Remove rear axle lh hub bolt Using sst and a hammer handle or an equivalent, remove the lh hub bolt. Sst 0962810011 4. Install rear axle lh hub bolt Install a washer and nut to a new ...

Replacement
Hint: installation is in the reverse order of the removal. But the installation is indicated only when it has a point. 1. Remove radiator grille subassy Remove the 2 bolts and clip.  using a screwdriver, remove the radiator grille. Hint: tape the screwdriver tip before use. ...

Circuit description
Refer to dtc p0335 Dtc no. Dtc detection condition Trouble area P0016 Deviation in crankshaft position sensor signal and camshaft position sensor signal (2 trip detection logic) Mechanical system (timing chain has jumped a tooth, chain stretch ...

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