Toyota Corolla (E120): Evaporative emission control system

Dtc p0441 evaporative emission control system incorrect purge flow

Dtc p0446 evaporative emission control system vent control circuit

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Inspection procedure
1 Check seat position air bag sensor Sst 09843–18040 Turn the ignition switch to on, and wait at least for 20 seconds.  clear the dtc stored in memory .  turn the ignition switch to lock, and wait at least for 20 seconds.  turn the ignition switch to on, and wait at ...

Inspection procedure
Hint: hand–held 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 active test using hand–held tester (a/f control). Hint: ”a/f control” is the act ...

Overhaul
1. Remove oil pump relief valve Remove the oil pump relief valve plug, oil pump relief valve spring and oil pump relief valve.  Oil pump relief valve plug  oil pump relief valve spring  oil pump relief valve 2. Inspect oil pump assy Remove 3 screws and o ...