Question about 2004 Mazda RX-8
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Posted on Jan 02, 2017
I have a 2004 that had the same problem. It sounds like the engine might be flooded. The best thing to do is to remove the fuse to the fuel pump. It will be listed under the fuse cover under the hood. Mine was a 20 amp but check to be sure. With the fuse removed, crank the engine for a minute to remove any fuel flooding the engine. Replace the fuse and crank the engine in 10 second intervals without touching the gas or you will reflood the engine. This process can sometimes take awhile and will drain your battery, so have it connected to an additional power source ( i.e. another car battery or jump box). When the car finally cranks over there will be a huge cloud of smoke so don't be alarmed when it happens. Lastly some words to the wise. This process CAN ruin your starter, but is essentially the same process that the dealership will you except that they will remove the spark plugs to drain the fuel and then charge you for new ones. If this process doesn't work then you probably need new spark plugs which is going to cost quite a bit. I was quoted upwards of $525 to fix this problem until I talked to a Mazda mechanic and found out how to do this myself. Just make sure that the engine is up to running temperature before turning the car off and you shouldn't encounter this problem again. I hope this helps you, and remember that if all else fails the dealer can fix it. It won't be cheap, but they will get it done.
I almost forgot, you HAVE to get the oil changed as soon as possible because there is probably gas in the oil now.
Posted on Dec 27, 2008
SOURCE: RX-8 EVAP P0455
This code is very vague as many things can cause this code. The most likely culprits would be: a loose or improperly affixed gas cap; a non-conforming gas cap (i.e. not factory/original brand); other leak or damaged piece in EVAP system
Some possible fixes would be; remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back; replace the gas cap, and/or; inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary
Posted on Aug 26, 2009
SOURCE: 2004 Mazda RX-8 PO455
It will not go off by itself,you will need to reset it by connecting to a diagnostic tool.Once cleared if there is any other problem then it will trigger the check engine light again.Hope this helps..
Posted on Sep 03, 2009
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