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Honda tags Civic, Accord, HR-V, Fit and more in fuel pump recall

American Honda Motor Company's recent issues with fuel pumps continue, as a new recall affects a large number of Honda and Acura vehicles from the 2018-2020 model years. The recall covers a total of 136,057 vehicles, including select 2018-2019 Acura NSX, 2019 Acura RDX, RLX, and RLX Sport Hybrid models, as well as 2018-2019 Honda Accords, Civic Hatchbacks, Civic Type Rs, HR-Vs, 2019-2020 Insights, and 2019 Fits.  National Highway Traffic Safety Administration campaign No. 20V314000, published May 28, 2020, states that the low-pressure fuel pump inside the fuel tanks of the aforementioned vehicles could falter or completely fail. Should the low-pressure fuel pump fail, the car could stall, regardless of its state of motion. Recall documents reveal fuel pump might fail due to swelling of the fuel pump motor impeller, which would cause the pump to seize. This issue is the result of a problem with how the parts were manufactured. These "lower density impellers" were "exposed to production solvent drying for longer periods of time." This caused some impellers to have surface cracking, which resulted in "excessive fuel absorption," which warps the impellers. Here's a breakdown of how many vehicles of each type were potentially affected:  2018-2019 Acura NSX: 146 2019 Acura RDX: 34,405 2019 RLX: 124 2019 RLX Sport Hybrid: 206 2018-2019 Honda Accord: 11,227 2018-2019 Civic Hatchback: 24,235 2018-2019 Civic Type R: 1,785 2018-2019 HR-V: 39,676 2019-2020 Insight: 14,959 2019 Fit: 9,294 Honda will notify owners to schedule an appointment with local dealerships. The fuel pump assembly on all affected vehicles will be replaced for free. For more information, visit NHTSA. Related Video:

Acura ARX-06 race car revealed with V6 hybrid powertrain

There’s a new Acura race car on the block, and itÂ’s called the ARX-06. It replaces the ARX-05, and Acura plans to race it in the 2023 IMSA WeatherTech SportsCar GTP Championship. Unfortunately, Acura makes no mention of the 24 Hours of Le Mans in all of the details provided with the reveal. That said, it sure looks like a race car that could be made to meet all of the regulations to race in the new LMDh Hypercar class. Acura engineered a new 2.4-liter twin-turbo V6 engine that is paired up with a standardized electric system for hybridization. Acura says the 2.4-liter displacement is the smallest displacement engine the HPD team has made for endurance racing yet. It features a 90-degree V-angle, and itÂ’s designed to run on more sustainable low-carbon fuel. "We've gone in a new direction for HPD in the design of the ICE,” said Pierre Descamps, HPD's powertrain design leader for the ARX-06. “It is still a V6, which of course for Honda is well-known, but we have incorporated several new elements which we believe will make best use of the electric MGU and battery pack. Our new engine will rev to the maximum 10,000 rpm set by the rules, so it also makes a wonderful sound!" The new bodywork penned by the Acura Design Studio in Los Angeles sits on an ORECA chassis (one of the four chassis options required by IMSA and the WEC). Acura notes one big change versus the outgoing ARX-05 is found in the rearview mirrors. Designers were able to move them lower on the car, which improved both aerodynamic performance and visibility for the drivers. Similar to years past, these new ARX-06 race cars will be run by Wayne Taylor Racing and Meyer Shank Racing. TheyÂ’ll make their debut at the Rolex 24 at Daytona next year, where the Meyer Shank Racing team took first place earlier this year. Related video:

2020 Acura NSX Suspension Deep Dive

The Acura NSX has been a special car as long as I’ve been in the business. The first one came out in 1990, the same year I started my career in automotive engineering. I vividly remember driving one briefly back then when we brought one in for benchmarking. I'd drive it again 22 years later when my previous employer bought a used 1991 example for a long-term test. Reader interest was sky-high and the car was still gorgeous, but the march of time and automotive engineering had clearly left it behind. Then, in 2016, a second-generation NSX emerged, and it was packed with bleeding-edge thinking. It has a 3.5-liter twin-turbo V6, but this new NSX is a hybrid with an electric motor-generator sandwiched between the engine and its nine-speed DCT transmission. Two more electric motors – one for each wheel – power the front axle. There they can add traction, regenerate electricity under braking and dole out hyper-accurate levels of torque vectoring. The carÂ’s tire package was changed from Continental SportContact 5 to SportContact 6 tires in 2019, and numerous suspension re-tuning tweaks came along with them. The result is a lively and well-balanced car that is relentless when driven hard and a pussycat around town. LetÂ’s see what theyÂ’ve got going on under there.   At first glance the 2020 Acura NSX appears to have dual wishbone front suspension. But we canÂ’t tell for sure because that big two-piece brake rotor is in the way. The coil-over shock looks obvious, but a few odd details are apparent even from here.   This view also seems to indicate double wishbone suspension. But the pivot axis (green arrow) between the upper and lower ball joints looks wrong – itÂ’s far too vertical. WeÂ’re missing something. But I would be remiss if I failed to point out a few other things before we moved on. For one, the front drive axle confirms this to be an all-wheel-drive machine. Second, the forged aluminum damper mounting fork (yellow) that envelops the axle is mounted to the lower arm about 75% out from the armÂ’s inner pivot. The spring and damper motion ratio would be 0.75-to-1 relative to wheel movement, with a tiny reduction due to its lean angle. Lastly, just look at the huge cast aluminum upright (white). Beautiful. Normally these are called hub carriers or steering knuckles, and I use the terms interchangeably. But the motorsports-derived term upright is normally applied when the piece is tall and, well, upright like this one.   This explains everything.