Question about 2000 Toyota Corolla
I have reset the computer several times but after 50 to 200 miles the check engine light come back on. I have replaced spark plugs and the coil, and even tried some fuel injector cleaner in the gas. None of this has helped. Any suggestions would be appreciated!! Also I discovered a diganostic port under the hood just in front of the brake fluid reservior.
Does this provide more info on engine problems, and is there DIY readers available for this port. Thanks
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Posted on Jan 02, 2017
SOURCE: 2001 toyota corolla check engine
Mass Air Flow sensor! Just remove your air filter cover. Go to Auto Zone and purchase some solvent. Spray past the air filter and it should correct the problem. If not, replace the Mass air-flow sensor. This is commonly mistaken for an oxygen sensor. Mine did this and I followed these steps and it fixed the light. BTW, the light stayed on for 5 years before I fixed it. Never hurt anything. It's normally something to do with emissions. Dummy lights. :)
Posted on Mar 30, 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
I have a 2005 Toyota Corolla. Yesterday, the check engine light came on. I thought the car was running fine. Later, I noticed the car would **** when the auto transmission shifted from 1st gear to 2nd gear. I also noticed when the car was in the Park position and I put it into Reverse, it would **** backwards. The vehicle has 49,200 miles.
Posted on Nov 08, 2009
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