Solution for exhaust smell after/during acceleration
#41
Senior Moderator
I was just wondering if the cause and solution would be relavent on a 2010 model?
I have the smell as described and high CO in the cabin when in recirc. I've measured over 100 PPM which is crazy for inside a vehicle at freeway speeds. I've been fighting with dealer and acura and they can't find anything wrong.
I did just look at the access cover at it is full of dust in that compartment so I am guesssing that your investigation of the cause is still correct for me ?
Your thoughts and I am very much appreciative of your wonderful writeup on this.
Thanks
I have the smell as described and high CO in the cabin when in recirc. I've measured over 100 PPM which is crazy for inside a vehicle at freeway speeds. I've been fighting with dealer and acura and they can't find anything wrong.
I did just look at the access cover at it is full of dust in that compartment so I am guesssing that your investigation of the cause is still correct for me ?
Your thoughts and I am very much appreciative of your wonderful writeup on this.
Thanks
The smell is from the catalysts getting soaked in fuel during heavy acceleration. Crap builds up on them and then it burns off when they get soaked in fuel. Running good fuels, using a fuel cleaner such as redline and periodic maintenance will prevent it.
TSB reprogramed the fuel maps as to not damage the rear catalyst when dumping large amounts of fuel during startup and heavy acceleration.
The smell comes in from the fresh air intake on the MDX that is under the windshield.
#42
My vehicle has been returned the body plugs have been replaced and glued in this time. I've tested the car with extreme acceleration and high loads and no smell. The dealership is very embarrassed that they didn't check this in the first place. Acura is blaming the dealership even though the dealer was working directly with Acura. It is a shame we had to find the problem ourselves. I am very disappointed in Acura's response to the high carbon monoxide that I reported inside my vehicle.
db22, you should have seen my CO detector when I was measuring in the compartment mentioned earlier above the body plugs and vents. It spiked unbelievably high when accelerating. (>300PPM) Most vehicles’ have a low pressure swirl behind them.
Again I can’t thank “yungone501” enough for getting me looking in the right area.
db22, you should have seen my CO detector when I was measuring in the compartment mentioned earlier above the body plugs and vents. It spiked unbelievably high when accelerating. (>300PPM) Most vehicles’ have a low pressure swirl behind them.
Again I can’t thank “yungone501” enough for getting me looking in the right area.
Thread
Thread Starter
Forum
Replies
Last Post
joflewbyu2
5G TLX (2015-2020)
105
08-18-2019 10:38 PM