Quote:
Originally Posted by ard
The cat is NOT a digital device. It isnt an electronic device.
As a result a 'cat conversion code' is triggered when values at the pre and post cat O2 sensors are out of whack.
When a car is running extremely rich, the O2 sensors can report values which the DME interprets as "the cat isnt working right". Cat may be fine.
You (or your shop) needs to do more than chase codes...
GL
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The cat code came up after the car developed a misfire from a clogged injector, so that was just
my assumption. Since the other issues have been present on and off for more than 7 months, that only came up recently. I am all for doing more than chase codes, but i am afraid that's something that i need to learn if i want to contribute more personally ( which is what i'm trying to do ). The worst part is that the shops, dealer and pretty much everyone around here seems to be doing no more than chase codes (at best). I've contemplated sending the car out of the country for a more proper diagnosis, but with all that it has gone into it i don't think it is worth it.
The car had no issues and all
suddenly is now going into limp mode
consistently and throwing the usual iDrive errors, just as an experiment i'll report back when the manifold is swapped whether the differential pressure sensor code is gone, from what i have experienced, simply changing that will get rid of the limp mode issue and the slow/bogged throttle for quiet some time. The issue has been highly inconvenient but fascinating also as it has poked that side of my curiosity that really wants to know.
Thank you for all your insight, really appreciate it. If there is anything else you think of let me know.
01-13-2018, 05:42 PM
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