Help with codes - 16805 & 16815 w/ bonus question
03-22-2008, 11:43 AM
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Help with codes - 16805 & 16815 w/ bonus question
I'm throwing:
16805
Warm Up Catalyst: Bank 1: Efficiency Below Threshold
16815
Warm Up Catalyst: Bank 2: Efficiency Below Threshold
I tried tapping the cats with a mallet, and I didn't hear any rattling. I recently replaced the front O2 sensors. What should I try next?
But what I really don't get, is other threads say the cats could be bad. I crawled under the car, and the back O2's are still before the cats. How would that relate?
Thanks
16805
Warm Up Catalyst: Bank 1: Efficiency Below Threshold
16815
Warm Up Catalyst: Bank 2: Efficiency Below Threshold
I tried tapping the cats with a mallet, and I didn't hear any rattling. I recently replaced the front O2 sensors. What should I try next?
But what I really don't get, is other threads say the cats could be bad. I crawled under the car, and the back O2's are still before the cats. How would that relate?
Thanks
03-22-2008, 01:26 PM
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Oooo tricky. Ok is there a way to tell if its O2's or cats for sure? And...
Are the rear O2's used solely to test the functionality of the cats? I.e. is there a real point in replacing them besides a CEL?
03-22-2008, 09:01 PM
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164k :) I reached up along the DP's and felt shielding but no cats...
...but not sure how far up the cats are. I just know the turbo on my Miata has shielding like that all around it.
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