Question about 2003 Toyota Matrix
Wonder no longer Gabi_hn,
Your exhaust MUST be open and working for your vehicle to start & run... I will take it a step further and assure you FRESH FUEL can't even get fully into the combustion chamber WITHOUT the free flow of exhaust...!!
2003 TOYOTA MATRIX 1 8L L4 Catalytic Converter RockAuto
2003 TOYOTA MATRIX 1 8L L4 Exhaust System Kit RockAuto
2003 TOYOTA MATRIX 1 8L L4 Muffler RockAuto
You could save yourself some money... all you have to know
is oxygen sensors get very upset about blocked exhaust...
BUT the NEW ones (oxygen sensor) report the same
trouble just as well as the old ones (my opinion).
More Information for NTK 21547
Hope this helps,
Carnac the Magnificent
Posted on Jun 18, 2017
If the catalytic converter is plugging up or plugged it will not allow the fuel into the cylinders and fire, due to back pressure on the engine. Do a exhaust check on the tailpipe by putting your hand or something over it and see if you have pressure there when the car is running.
Posted on Jun 18, 2017
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Posted on Jan 02, 2017
I would assume you need to replace spark plugs and fuel injectors (or try to use injector cleaner liquid). Also check/replace catalytic converter. Check engime lights codes you can read for free in nearest Autozone store. I would assume it either fuel evaporation problem or O2 sensor.
Please kinly let me know if you need more infor
Posted on Feb 15, 2009
If you haven't replaced the O2 sensor that is causing your check engine light to come on by generating a fault code in the ECM, replace it first. Cleaning the Catalytic Converter is not the thing to do. Replacing the faulty sensor will pay for itself in the long run with the better fuel economy you will get.
Posted on Aug 14, 2009
CODE PO420 CATALTYLIC CONVERTER SYSTEM FAULT.ITS SAYING FAULTY CATALTYLIC CONVERTER.IF IT BEEN A WHILE IF YOUR CAR HAS A WHOLE LOT OF MILES ON IT.YOUR SPARK PLUG CHANGE IS DUE AT 120000 MILES. DUE A LITTLE TUNE UP CHANGE AIR FILTER AND FUEL FILTER.SEE IF YOU HAVE ANY ENGINE FAULTS BAD PLUGS DIRTY INJECTORS ANY THING UP SET FUEL SYSTEM CAUSE CAR TO RUN RICH.EXCESSIVE UNBURN FUEL WILL GATHER IN CATALYTIC CONVERTER CAUSE IT TO BURN OUT.SHORTING LIFE OF THE CATALYTIC CONVERTER.
Posted on Aug 30, 2009
yes theres is, try locking and unlocking the pass/side door with the key. you can check for power at the starter at the small wire if theres power at that wire when the key is held in the crank position then you have a bad starter try taping on starter while key is held in start if its starts when tapping then starter is bad,heres a diagram to show you were to tap and where to check for power, hope this helps.
Posted on Feb 10, 2010
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