dgkula

Anyone else having this problem? I have the 300 cell ceramic cat and get a CEL every other day lately. I recall at the time of purchase LaBree told me that with the 300 cell (vs the 200 cell metal) I should not get a CEL.

Code is 16806 - Main Catalyst; Bank 1: Efficiency Below Threshold
P0422 - 35-00 - -

Anyone else having this issue?

Jeez. I have to get inspected in June. Does this mean that I need to drop $799 for the Miltek HFC? Yikes.

Allroady DungBeetle

Could well be that you need to replace the sensor?

BSCA4

I recalled some year the ECU need to be reprogram by stealer

Solaris

same code you're getting. Once it started, it came back once every 2 weeks on average. It seemed that if I stayed under 3k RPM a lot, it was more frequent.

Tgr_Clw

I've had the HFC installed since August 2006.

dgkula

O2 sensors (front & rear) only have 20k mi on them

dgkula

After my experience with JHM, I've been reluctant to contact them

ianbis

I have a Labree HFC and have used the spark plug non fouler for 3+ years with no issues

dgkula

Thanks - I will try that and report back

dgkula

Now we'll see if the CEL comes back ...