Tacoma 4WD L4-164.4 2693cc 2.7L DOHC (3RZ-FE) (1996)
INSPECTION PROCEDURE
HINT:
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If DTC P0441, P0446 or P0450 is output after DTC P0440, first troubleshoot DTC P0441, P0446 or P0450. If no malfunction is detected,
troubleshoot DTC P0440 next.
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Ask the customer whether, after the MIL came on, the customer found the fuel tank cap loose and tightened it. Also ask the customer whether
the fuel tank cap was loose when refuelling. If the fuel tank cap was not loose, it was the cause of the DTC. If the fuel tank cap was not loose
or if the customer was not sure i
DTC P0441 Evaporative Emission Control Incorrect Purge Flow
CIRCUIT DESCRIPTION
The vapor pressure sensor and VSV for vapor pressure sensor are used to detect abnormalities in the evaporative emission control system.
The ECM decides whether there is an abnormality in the evaporative emission control system based on the vapor pressure sensor signal.