Recent content by rvsarch

Acura sent the letter in 2015, extending the warranty to 8yrs / 125k miles specifically for piston and ring replacement due to excessive oil consumption. My oil consumption never came close to what they consider excessive and time ran out in 2019.

Car has 125k miles. Oil burning started sometime around 60k miles. Rich fuel mixture is probably a recent development and even more responsible for the code.

Agreed. Seems to me the change from +0.8% to -8.5% means I'm running less unburned fuel into the converter now with the new sensors and everything may be good enough to avoid P0420 returning. Over the 13 years I've owned the car, I've done the following: Shortened OCI, no change in consumption...

New information: Should have checked but there is an accumulation of black soot on the muffler tips, not oily. After cleaning the MAF sensor, there's a slight improvement in readings. From 3 grams/sec down to 2.7 grams/sec at idle (2.4 liter engine). After replacing upstream air/fuel and...

Really helpful information. To recap. This is the 2.4 i4. I used Protect & Clean and got my first CEL with the car about a week later, so I treated with Cataclean before a planned highway trip. Then I cleaned the MAF sensor and throttle body/plate with CRC. Replaced Upstream and downstream...

I will get some more data soon, but here is the freeze frame when the code tripped. Sounds like I need to find out if the car is running rich if MAF is reporting high. Car is mainly driven by my wife. Short trips, mostly stop and go.

That is after cleaning. I was wondering about the value being on the high side using rule of thumb. Does the upstream sensor compensate for this with fuel trim or does it end up running too rich?

The 2.4 was the only engine choice for the wagon. A lot of opinions pro and con about using a thicker oil to combat consumption. I have also been reluctant to try an engine flush out of concern for the seals. I have zero leaks and colored concrete pavers where I park.

Well, the P0420 code is generated by the downstream sensor readings in relation to the upstream sensor and other parameters in order to monitor the efficiency of the converter. My engine burns oil, so possibly a poisoned converter. I thought the protect and restore might have done some...

Never had oil go so dark in a week and only about 50 miles, so I treated it like an engine flush.

I received a notice from Acura soon after purchasing a 2011 Acura TSX Wagon, warning about oil consumption, extending the warranty and offering to replace the piston rings if oil consumption became excessive. They also suggested using only top tier gas and letting the car warm up before hard...

My 2011 Acura TSX wagon with 125,000 miles is the only car of mine in 40 years that’s burned a significant amount of oil. I received a notice from Acura early on citing a problem with oil consumption and low tension piston rings, extending the warranty and suggesting Top Tier gas. I did switch...

I'll start out by saying that since my 1977 VW Rabbit, which was recalled for leaky valve stem seals, I've had no measurable oil consumption with any of my cars until my two current rides. My wife's 2011 Acura TSX wagon has consumed about 1 quart of oil per 3,000 miles for the the past 6 years...

I've had my 2011 TSX Wagon since new with 113k mi. mostly stop & go driving. My wife was driving when the CEL came on and car went into limp mode. Engine was running perfectly beforehand. I came to pick her up and scanned code P304, misfire cylinder 4. Engine was clearly running on three...

I purchased a new Honda Accord sedan and a wagon back in 1994. The first summer I experienced moderate brake fade in each car with repeated braking on downhill stretches of my commute on 90ºF plus days. Honda OEM was DOT 3, so I switched to DOT 4 and the problem went away for each car for the 15...