Question about 2001 Dodge Durango
I removed the cat on the advise of the guy at the exhayst shop. He said mine was clogged and removing it would "open'er up" at allow the engine to run more freely. My mpg dropped to under 10 and my truck is running very rich now. Do I need to put it make on or could an o2 sensor be bad?
What you have done is alter the back pressure which will cause it to use more fuel contrary to popular belief a road vehicle engine is designed to work with a certain amout of back pressure and you taking the cat off has altered this ,so refit the cat and make sure the sensors are connected then test them with a multimeter ,what you do is with the sensor disconnected and their will be two of them one befroe the cat and one after but with the plug out check the two wires the same colour to the sensor for a continuety ,no continuety renew ,then the same two wires on the feed end of the plug check for 12v with the engine running if ok reconnect and across the other two wires you should read .08? something and engine is revved it should drop to 0.5? area if no reading then renew the sensor .To run a engine in certain countries is a offence now i know this is annoying when the middle east like bahrain and saudi do not specify new vehicles to have a cat is a whatever you want to call it but in europe and america you commiting an offence
Posted on Feb 15, 2012
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Posted on Jan 02, 2017
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