Question about 2004 Toyota Tacoma
Check engine light comes on with code PO456. How do I fix this
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Posted on Jan 02, 2017
pull the E.F.I. fuse located under the hood on the drivers side, if there is more than 1 efi fuse pull them both along with the E.T.C.S. fuse (if there is one) for 1 minute or so. That should do it
Posted on Dec 23, 2008
SOURCE: Toyota Camry 2004 P0420
well that's if I'm not mistaken, catalyst system efficiency THRESHOLD!!! it is "bank" when your description code explanes bank 1 that is a O 2 sensor anything says BANK is a Oxygen sensor = O 2 sensor.what is it doing shutting off when eng warms up or sputtering or nothing really out of normal behavior? these switches will loose all communication with computer or get stuck in 1 of three ranges each range behave differently! in each range the deal with these are these switches are a part of maintenance usa @ hundred thousand km they should be change for emission efficiency and fuel consumption and vehicle performance usually after 1 is changed 9 times out of 10 shortly after the next bank will produce eng light and so on!! I usually change both while I'm at it you know pay me now or pay me again later but twice as much! well hope this helps you out good luck cheers happy new year.John, Toronto,Ontario
Posted on Jan 03, 2009
Check your switches for the VSC, some get bumped on (due to their location) and some get stuck in the "on"position.
Posted on Aug 04, 2009
I am having a multiple cylinder misfire on my 2006 Toyota RAV4 with the 3.5L V6. Every cylinder is reporting a mifire. Each cylinder has it's own coil. I highly doubt that all 6 coils went bad at once. Does anyone have any idea what my be causing this?? Is that the problem you two are having?
Posted on Mar 09, 2010
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