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MSD - Atomic EFI Throttle Body Fuel Injection Timing


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    • By Counterman
      Delphi Technologies, a brand of BorgWarner, unveiled its new Sparta fuel-pump line at AAPEX, showcasing the latest offering in its expanded aftermarket portfolio.
      Designed specifically for older and high-mileage vehicles, Sparta made its AAPEX debut with updated visuals and new packaging. The Sparta brand offers another revenue opportunity for distributors and customers, targeting a specific subgroup of older vehicles.
      The company also demonstrated its fuel-tank cleaning tool live at the booth. The tool is designed for scenarios when the fuel tank is difficult to drop or full of fuel; the magnetic head is effective at collecting debris from hard-to-reach areas of the tank. The cleaning tool has been well-received by technicians for helping optimize their productivity and deliver customer satisfaction.
      link hidden, please login to view Visitors learned more about other aftermarket product lines, including steering and suspension and engine management. Since the initial launch of the steering and suspension program in 2017,
      BorgWarner has added more than 5,000 Delphi-branded SKUs, or over 150% growth to the product line now totaling 8,500 SKUs, including more than 2,000 control arms.
      All chassis product offerings undergo thorough dimensional and material analyses including extreme temperature, fatigue, three-axis and salt-spray testing in order to ensure premium product, durability, quality and the perfect fit. Further expansion is planned across products such as tie rods, sway bar links, control arms, and ball joints, where the company currently has 98% sales coverage across both domestic and import applications. Similarly, BorgWarner has continued to expand its Delphi Technologies engine-management line by 175 SKUs over the last year, with engine-sensor coverage and ignition coils.
      Exhaust-gas temperature sensors, a newer part added to the Delphi Technologies portfolio, now has nearly 50 part numbers spanning both domestic and import applications.
      Delphi Academy
      Booth visitors also learned about the Delphi Academy, which has been designed with input from technicians to ensure it caters to their needs. It has more than 30 courses run by ASE-certified technicians, with both hands-on and virtual options available on the platform. Technicians who lead those training courses were at AAPEX, offering the chance for visitors to learn from the experts. Several courses for electric vehicles and battery electric vehicles are already available through the Delphi Academy with updates planned in the future.
      For commercial-vehicle distributors and technicians, BorgWarner brought the recently launched Cummins HPI Application Kit for the Hartridge HK1400 Cambox. The HK1400 is an all-makes solution for testing electronic unit injectors and electronic unit pumps and is an essential choice for diesel workshops servicing diesel commercial vehicles. The HPI Application Kit is a set of dedicated ancillary hardware that replicates real-world conditions for accurate HPI testing.
      Additionally, the Hartridge Sabre CRi Expert was displayed at the show. This advanced, compact, all-makes common rail injector tester comes with new test plans, new test steps, injector coding feature and a 2,700-bar rail pressure range enabling testing of LD, MD and HD common rail applications. Its features and functions make the Sabre CRi Expert a future-ready testing solution that helps shops stay ahead of the market, according to the company.
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    • By Counterman
      Continental has added a new line of filtration products to its fast-growing aftermarket portfolio.
      The new line features a wide range of OE-quality oil, fuel, air and cabin filters for applications on domestic and import cars, vans, SUVs and light trucks.
      “Built to ensure safe engine operation and clean air in the vehicle interior, our premium OE-quality filters are designed to deliver reliable protection against dirt, abrasion, ultrafine particles and moisture for injection systems, engines and passengers,” said Laura Huerst, Continental product manager. “These world-class filters are produced to the same quality and performance standards we apply to our original-equipment parts.”
      Continental premium oil filters are manufactured using the most advanced technologies and innovative filter media available to ensure the best engine performance and minimum fuel consumption, according to the company. This is especially important as the industry’s use of new “long-life” oils and longer service intervals continue to increase.
      The filters are offered in spin-on and immersion designs.
      Continental air filters help ensure a constant air supply to the combustion chamber by efficiently filtering out impurities and dirt particles that can clog injectors, increase engine wear and affect fuel consumption. They are designed to deliver superior efficiency and feature a high dirt-particle-absorption capacity, according to Continental.
      Continental cabin filters feature a pollen and active carbon formulation that provides the best possible atmosphere and comfort in the vehicle interior, even under adverse weather conditions.
      The cabin filters offer a very high level of efficiency and microbiological decomposition, as well as an excellent resistance to moisture. The pollen filters are made of nonwoven material that can capture more than 90% of particles with a diameter of over 2 μm. The nonwoven activated carbon filters can capture particles of 0.01 to 2 μm and effectively prevent gas, bacteria, fungi and odors from entering the vehicle’s interior, according to the company.
      Continental gasoline fuel filters employ cutting-edge technology to meet the demands of modern high-performance fuel injection systems. The filters are designed to retain impurities less than a micrometer and also separate water from fuel to help prevent power loss and potential engine damage.
      For more information, visit
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    • By Counterman
      The VVT category continues to grow in the automotive aftermarket. These systems are becoming more and more common as manufacturers try to meet tightened fuel-economy standards. When it comes to meeting those standards, variable-valve timing (VVT) is just one piece of the puzzle. As these vehicles exit the factory warranty period, there’s a huge opportunity for counter pros to serve customers’ repair needs.
      Variable-valve timing is the process of altering the timing and/or duration of a valve lift event, to improve performance, fuel economy and emissions.
      On a conventional engine, the opening and closing of the valves is based on their fixed position relative to the timing chain or belt, which is driven by the crankshaft. Without VVT, the valve timing remains the same for all conditions. This means that certain compromises must be made by manufacturers; this is achieved by selecting a specific cam profile. The cam profile affects the valve lift and duration.
      However, an engine equipped with VVT can make additional adjustments, so it isn’t constrained by the cam profile. VVT systems allow for improved performance over a broader operating range. The ability to alter valve timing at any engine speed gives manufacturers the ability to tune for optimal performance and efficiency. The camshaft’s timing can be advanced to produce better low-end torque, or it can be retarded to have better high-end torque as directed by the ECU.
      System Overview
      It’s important to point out that VVT is not just a single part or component – it’s an entire system. There are a number of components that all need to work hand-in-hand in order for the system to function. Let’s talk about some of the components that make up the entire system.
      The part that actually controls the position of the camshaft is the phaser. Cam phasers may feature a piston-type construction, or a vane-type construction. Regardless of construction, they use engine-oil pressure to push against a strong internal spring. A VVT solenoid is used to adjust the engine-oil pressure into the phaser.
      While early VVT systems were active only in higher rpm ranges or under specific conditions, modern systems are actively adjusting the intake and exhaust camshaft positions for the best possible efficiency at all times.
      VVT systems have caused one emissions system to become all but extinct: exhaust-gas recirculation (EGR). Since VVT is able to control the way gasses enter and exit the combustion chamber, there’s no need for EGR systems.
      EGR systems were designed to reduce nitrous oxides (NOx) by recirculating exhaust gasses back into the intake manifold. This causes the combustion temperature to drop below 2,500 F, preventing the formation of these harmful gasses. EGR systems did work, but lacked the reaction time and precision offered by VVT systems.
      Failure Points
      In many ways, engine oil is the lifeblood of the VVT system. Inadequate oil pressure or contaminated oil will hamper system performance. It’s very important that customers are following the manufacturer’s maintenance schedule, and using only the specified type, grade and viscosity of engine oil in their vehicle.
      Clean engine oil is critical to VVT-system operation. The oil passages of a VVT system are like a dead end, and the oil doesn’t flush out the passages all the time. If a piece of debris finds its way into a phaser or oil-control valve, it could be there for a while. Most manufacturers use a metal-screen filter to prevent debris from reaching the variable-valve timing system. Some manufacturers make the screen serviceable but, on some vehicles, it could be inside the oil-control solenoid and almost impossible to inspect or even clean.
      The relationship between the camshaft and crankshaft is critical in today’s VVT systems. The ECU relies on information from the camshaft position sensor and the crankshaft position sensor to determine ignition and valve timing. If either of these sensors produces a faulty signal, the VVT-system performance will suffer. A loose or stretched timing chain or timing belt, or a worn timing guide or tensioner, all could negatively affect the VVT system.
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    • By RockAuto
      Get up to $20 back with purchase of select Mobil 1 oil.View on RockAuto.com

    • DIY like a pro! Shop from over 1,000,000 Repair Manuals at eManualOnline.com! As low as $14.99 per manual. Shop now.


      DIY like a pro! Shop from over 1,000,000 Repair Manuals at eManualOnline.com! As low as $14.99 per manual. Shop now.


      DIY like a pro! Shop from over 1,000,000 Repair Manuals at eManualOnline.com! As low as $14.99 per manual. Shop now.

    • By Counterman
      Carter has introduced four new parts to its popular line of fuel-pump-module assemblies, featuring CleanScreen technology and OE-matched connections. 
      The new SKUs include module assemblies with part numbers P77200M and P77248M, and diesel assemblies assigned to part numbers P77277 and STS330. 
      The additional electrical and mechanical fuel-pump-module assembly SKUs are engineered to consistently meet the demanding requirements of both gasoline and diesel engines across many vehicles makes and models. 
      “We engineer, manufacture and test in-house, enabling us to meet and exceed the consumers’ needs,” said Ryan Gernheuser, repair group director, product management/aftermarket engineering at First Brands Group. “Our capabilities enable us to innovate quickly while industry-leading quality controls.”
      Carter’s new fuel-pump-module assemblies cover several Volkswagen car and Ford Transit van models; the new universal electric fuel pump and fuel pump strainer are designed for the Ford Super Duty series.
      Carter’s full line of fuel-pump assemblies cover 95% of domestic and import VIO. They come with limited lifetime and 12-month warranties for select products to provide added peace of mind.
      For more information, visit
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