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Is there a connection between Cat failure and code P1456 you replaced your exhaust after the reading stated a replacement of Catalytic converter After several Months the engine light came back onP1456?
Wiki User
∙ 10y ago
You will have to figure this out for your self but how to think about this.
There are two Oxegen Sensors in the exhaust. One on each side of the Catalyic converter. The difrence in readings is how the system checks the Cat.
If you took out the Catalist and replaced with a straight pipe you get trhis code. There is a simple way around it by installing a resistor in the wiring to the rear cat.
But that is not going to pass emissions testing.
Wiki User
∙ 10y ago
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Can a catalytic converter be burned out or must it be replaced?
Legally a defective catalytic converter must be replaced.
When a catalytic converter should be changed?
There are no set time or milage limits for a cat replacement A cat is normally replaced only when it fails.
Can you use sea foam to unclogg your catalytic converter?
No, that will not work. A restricted catalytic converter will need replaced.
Can a catalytic converter be unclogged?
No, it must be replaced.
How can you pass inspection when you need a catalytic converter?
There's no possible way to pass inspection with a bad catalytic converter, if if you find out you have a bad catalytic converter during your inspection you have a chance after you after you have replaced the catalytic converter and the inspection no no charge/free!!
Can you unclog an catalytic converter?
No, if it is clogged it must be replaced.
Why would catalytic converter have to replaced on a new car with 20000 miles?
A catalytic converter can be ruined by a engine that is missing and dumping raw fuel into the converter.
Will your car pass inspection if catalytic converter is not replaced?
No, it is illegal to remove a converter and not replace it.
How many o2 sensors does a echo have?
Two. One before, and one after, the catalytic converter. The one before the catalytic converter (closer to the front of the car) is more critical and usually first to be replaced, although both have a recommended replacement interval of 100,000 miles.
Can you repair a catalytic converter?
You don't. They are replaced when damaged or defective
How can you clean a catalytic converter?
You cannot clean it. If it is clogged it must be replaced.
How can you unclogged a catalytic converter on a Nissan Sentra 1999?
You cannot unclog a converter. If it is clogged it much be replaced.
