Cat Delete?

[RAM_it]

Hey guys, new here to the forum. I have a question: If I cut out the Catalytic Converter and just put in a pipe instead on my 2002 dodge ram 360, will the check engine light be on all the time, or will it be ok? I have heard that from '03 on, taking out the Cat will illuminate the Check engine light. But what about '02? Thanks in advance.

 

[Mopar_Express]

Youll probably want to ask in the 3rd gen forum.

 

[PCA4208]

Just leave the cat. It makes exhaust not smell and passes emissions for you. Most people thinks it's a real restriction in the exhaust, but it's really not unless you have big horsepower.

 

[RAM_it]

Just leave the cat. It makes exhaust not smell and passes emissions for you. Most people thinks it's a real restriction in the exhaust, but it's really not unless you have big horsepower.

I would exept that my check engine light is on, and it is a cat converter code. I really would rather avoid spending $800

 

[PCA4208]

Have you tried the 02 sensor anti fouler trick? What you do is remove the sensor after the cat and put a spark plug antifouler packed with steel wool. Onto the sensor, then screw the whole assembly back in. Even if you remove the cat you will need to do this, or get a custom tune to remove the check engine light..

 

[TheSatinPumpkin]

So the cat is already removed? What did you do with it? Yes you will get a cel when the cats are removed. Either do non foulers as mentioned. Or turn rear sensors off via custon tune but sensors will no be in readiness mode and will most likely fail emissions.

Sent from my SCH-I605 using Tapatalk 2

 

[RAM_it]

Have you tried the 02 sensor anti fouler trick? What you do is remove the sensor after the cat and put a spark plug antifouler packed with steel wool. Onto the sensor, then screw the whole assembly back in. Even if you remove the cat you will need to do this, or get a custom tune to remove the check engine light..

Thanks I might see if I can get one from an auto wrecker yard or something :/

 

[PCA4208]

Thanks I might see if I can get one from an auto wrecker yard or something :/

Or just autozone? Haha they're not too hard to find.

 

[RAM_it]

So the cat is already removed? What did you do with it?

Sent from my SCH-I605 using Tapatalk 2

No the Cat is still on, but for whatever reason the check engine light is on

 

[TheSatinPumpkin]

Go to AutoZone and they can get the actual codes for you. Cant assume the cel directly points to cats.

Sent from my SCH-I605 using Tapatalk 2

 

[TheSatinPumpkin]

Thread should be moved out of the 4g section.

Sent from my SCH-I605 using Tapatalk 2

 

[RAM_it]

Go to AutoZone and they can get the actual codes for you. Cant assume the cel directly points to cats.

Sent from my SCH-I605 using Tapatalk 2

Could you explain a little more? What could it be besides the Cat?

 

[blk00rt]

If you do take your cat off, try taking the rear most 02 sensor and putting it in the frame rail, so that it reads fresh air. depending on which cat is bad and how many you have, this trick should work. the last 02 sensor looks for a difference from the front one and as long as it sees a difference for the positive side it thinks the cat is doing its job. I have done this on my dakota for about 8 years now with no cel.

 

[TheSatinPumpkin]

Could you explain a little more? What could it be besides the Cat?

Serach dtc codes.

Sent from my SCH-I605 using Tapatalk 2

 

[RamSport13]

Could you explain a little more? What could it be besides the Cat?

Check engine light can come on for numerous reasons, O2 sensors, MAP sensor, EGR, EVAP system, cylinder misfire, low voltage, you get the idea. Definitely worth going and pulling the code to find out what the vehicle is storing. Whenever your light is on, the vehicle goes into basic mode of running. You will probably see a decrease in performance and mpg as long light is on.

 

[RAM_it]

Check engine light can come on for numerous reasons, O2 sensors, MAP sensor, EGR, EVAP system, cylinder misfire, low voltage, you get the idea. Definitely worth going and pulling the code to find out what the vehicle is storing. Whenever your light is on, the vehicle goes into basic mode of running. You will probably see a decrease in performance and mpg as long light is on.

Oh yeah but I got the code pulled already and it was a Cat code. Sorry for the misunderstanding

 

[Casper]

Some non-dealer shops can not just pull codes but do diagnostics too.

If you do determine the Cat is the problem, there is no point in deleting it.

A better idea would be to check the Rf prefferred vendors for high flow direct applicatin Cat replacements.

 

[WhiteExpress]

If you do take your cat off, try taking the rear most 02 sensor and putting it in the frame rail, so that it reads fresh air. depending on which cat is bad and how many you have, this trick should work. the last 02 sensor looks for a difference from the front one and as long as it sees a difference for the positive side it thinks the cat is doing its job. I have done this on my dakota for about 8 years now with no cel.

I did this on my '00 when my cat brick broke, and plugged the exhaust.
Removed the cat, welded in a piece of pipe and zip tied the rear O2 to the frame.
Only issue I had was in heavy rain / snow it'd throw a code. Made a little shield, never had another issue.

Only difference is the truck was a WHOLE LOT louder w/o the cat.