Catalytic Converter Temps

[mraplx]

Hey everyone. I am looking into a possible Cat issue on a 2014 RAM 2500 with the 6.4L and a custom exhaust. Can some one with a OBDII scanner take a look at there cat temps at idle and under load? I am seeing bank 1 with a much higher temp 200+ degrees than bank 2. Any help is appreciated. I am using PID SAE.CATEMP11 and PID SAE.CATEMP21

 

[Ratket]

what is bank 2 running at? are u 200 degrees hotter on one side than the other??? if so then ya there is a problem lol.

 

[mraplx]

Ratket, yes bank 1 is hotter than bank 2. Do you have the ability to scan your OBD II PIDs if so it would be very helpful? At idle I see bank 1 at 847 and bank 2 at 650.

 

[mraplx]

If anyone has the ability to check that would be great, got under the truck with an IR thermometer, pid said 1200, hottest point on the cat an surrounding piping showed ~570. I think the pid values might be skewed.

 

[Ratket]

Hmmm I don't have a way to check... Sounds odd though

 

[mraplx]

Perhaps a plan B is necessary if there inst anyone who can scan their PIDs. Are any members from Northern Ca? I am in the SF Bay Area and if there is another owner in Nor Cal that would let me plug my OBD II scanner that would work too. Please let me know!

 

[pickupman66]

Ill try and remember to run my Torque app on the way home. ill be on the interstate for about an hour.

Nm.. you have the 6.4 and I have a lowly 5.7

 

[pickupman66]

Fwiw, both sensors on mine bank 1 and bank 2 showed 1535f at I terstate speeds. They changed identically together.

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[mraplx]

Thank you! What was you terrain like?

 

[pickupman66]

I didn't monitor going up the mountain so this was on fairly flat terrain. 1800 rpms

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[mraplx]

Thanks again.