1998 toyota tocoma
#1
1998 toyota tocoma
My check engine light has come on I took it to the auto parts store and had the code read it says Catalyst Efficiency Below Threshold (Bank 1 )
I was wondering if any one knows what this means?
I was wondering if any one knows what this means?
#2
That means the cat is not doing anything.
You didn't say what it is 4 or 6. Mileage, service history?
Could be a dirty air filter (not necessarily now but at some point in time), dirty air mass sensor, air fuel sensor, etc. Something that effects the air fuel mixture. Could of had a misfire at one point.
If you correct the air fuel problem the cat may be able to "clean" itself, if not you may need to replace it.
You didn't say what it is 4 or 6. Mileage, service history?
Could be a dirty air filter (not necessarily now but at some point in time), dirty air mass sensor, air fuel sensor, etc. Something that effects the air fuel mixture. Could of had a misfire at one point.
If you correct the air fuel problem the cat may be able to "clean" itself, if not you may need to replace it.