Piston Slap: 'Revving Up Our Engines' for Earth Dreams?

TTAC regular David Holzman writes:

Sajeev,

My best friend has a 2019 Honda Accord with gas direct injection. Recently, Scotty Kilmer raised questions about the potential longevity — or rather potential lack thereof — of that engine.

I would expect Honda to have done a good job in designing that engine, but my friend is worried. Can you shed any additional light on this?

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Piston Slap: Earth Dreams of Carbon Buildup?
TTAC commentator KCFlyer writes:

Dear Sajeev,

I have a 2015 Honda Fit LX manual, purchased new. From day one I noticed a slight momentary hesitation under moderate acceleration when the engine was cold. I took the car to the dealer after a few weeks but they could not duplicate the problem. I dropped it off again and left it overnight, hoping a cold engine would allow them to experience the issue. No luck.

Fast forward 57,000 miles. Same problem persists and is reported to dealer via phone several times. The check engine light comes on. Dealer says the code means an #3 cylinder misfire. They say the fuel injectors are clogged and charge $1,300 to replace all four injectors. Honda of America throws in $1,000 of goodwill money because fuel injectors are not covered by the 60,000 mile powertrain warranty.

Two weeks later light comes back on. Same code. This time another dealer pulls the head and finds carbon buildup on all four piston heads. They clean up the engine, clean the throttle body and declare the vehicle fixed. Total charges paid for by Honda of America under goodwill claim except $217 for the throttle body cleaning. That was yesterday and I will know within days if the original problem persist.

Tech rep was awesome. He recommends I get the fuel injectors and throttle body cleaned every 30,000 miles. My question, what caused the carbon buildup? Does the buildup damage the engine even if later cleaned up? Should I dump the Fit? It is an awesome commuter. I average 44 mpg summer and 39 winter.

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QOTD: What Is Up With Efficient Engine Nomenclature?

Starting with the redesigned 2013 Accord, Honda will introduce its new, ultra-efficient/more powerful Earth Dreams engine lineup. And it’s far from the most silly moniker attached to automotive technology.

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  • ChristianWimmer The 240D was frigging FAST……compared to the base 200D and 220D models which we had in Europe. The 200D had 55-horsepower and the 220D had 60-horsepower. Later the 200D got a power boost to 60-horsepower which resulted in Mercedes axing the 220D. It was a 60-horsepower 200D which I once got to drive. The car belonged to a friend and had the manual transmission. 0-100 km/h according to Mercedes was 33 seconds. Ok, it was surprisingly agile - from 0 to 80 km/h (could keep up with modern traffic), BUT 80 to 100 km/h took forever! At 80 km/h and in the proper gear you could be flooring the pedal and the needle barely moved upwards. So I guess for a city vehicle or roads limited to 80 km/h it’ll do fine - and we have many such roads in Germany.
  • Tassos staying within the same family, I'd much prefer the 300. However, a 2006 recently sold also quite unjustifiably pricey, Not when you can get an Awesome Mercedes S550, of a far more recent vintage (2013) for almost the same price!!!!https://carsandbids.com/auctions/9Q1d4Vk9/2006-chrysler-300c-srt8
  • Tassos https://carsandbids.com/auctions/r4e4R4mA/2013-mercedes-benz-s550-4maticWhy don't you try this? It's four times the car the unreliable little red wagon is, it's 1000 times more luxurious, it's far more powerful than you'll ever need, it's a FOREVER car, susprisingly economical to run, AND fit for a KING, not a JANITOR. Oh, and you save over $5000, which can buy you a really Ruling Class Bottle of wine... or several cases thereof.
  • Tassos Holding cellphones in one hand while driving and being distracted by them is the idiot's recipe for disaster.And there are millions and millions of such morons. As Mark Twain said, the average American is not very smart, and half of all Americans are even dumber than that. I believe this is true of most other nations as well.
  • Tassos I am not paying $25,000, even in worthless biden dollars, for a 7-year old, unreliable, non-luxury used small wagon. Are you kidding me?