answersLogoWhite

0


Best Answer

A catalytic converter's function is to filter most pollutants out of the exhaust so it probably wouldn't mess up the computer in the car or lower gas mileage. On an OBDII vehicle(post 1996) the computer watches the O2 sensors to monitor converter efficiency If the converter has failed(or is missing) the computer will adjust fuel ratios to try to compensate This can ruin economy,

User Avatar

Wiki User

15y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Can removing the catalytic converter mess up the cars computer or Ruin gas mileage?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Can removing the catalytic converter on 06 focus ruin the engine?

It will really mess up the fuel mileage,and driveability


Does removal of catalytic converter improve mileage?

NO


Does removing catalytic improve performance in a Subaru Outback?

removing the catalytic converter will give you about a 10-15% power gain problems is with most the newer car there all obdII and if you take the converter off you will set a check engine light and the computer of the car will still try to fix the fuel air ratio which will kill your gas mileage if you want the power gain and still be able to pass emissions and have no fuel map problems get a 3" high flow converter it would be like removing the stock 1


Will removing your catalytic converters off a 2003 suburban hurt anything?

Yes it will. Your engine will not run properly and you will get poor mileage and loss of power. And besides that is it a federal crime to remove the catalytic converter from any vehicle.


How will car run after removing catalytic converter?

Your car will not run better and you will get no better mileage. In fact you car will not run correctly without the converter as the ECU will not be able to adjust the correct fuel/air mixture properly without the converter on place. Know that is illegal in all 50 states to remove a catalytic converter. The fine is from $2,500 to $25,000.


Will a bad catalytic converter cause decreased gas mileage?

It could, yes.


How do you bypass the Cadillac converter on a 1999 Grand AM?

Modern cars use two oxygen sensors to monitor the exhaust before and after the catalytic converter. Removing the catalytic converter would cause your engine to run improperly, possibly causing damage and most likely making your gas mileage worse. Just replace it if it's broken.


What happen if the catalytic converter is plug?

Loose of power, hard starting, poor fuel mileage, and the converter will get red hot.


Can removing emissions equipment improve gas mileage?

If you removed ALL emissions equipment, the question would be hard to answer, in theory anyway. Removing individual equipment such as your Catalytic Converter would improve exahaust flow and improve gas mileage. Removing your Oxygen Sensor would most likely decrease gas mileage because the Oxygen Sensor helps control the air/fuel mixture.


What are some symptoms if your catalytic converter goes bad?

Hard starting, loss of power, poor fuel mileage are symptoms of a clogged converter.


How many MPG will you improve without a catalytic converter?

On vehicles built within the last 12 years you will get no improvement in mileage if you remove the catalytic converter. Besides, it is illegal to modify the emissions system in this manner.


Will a bad catalytic converter cause hard starting?

Yes it will, plus loss of power, & poor mileage.