Injectors Archives - Page 4 of 5 - UnderhoodService
Tech Tip: VW’s MIL is On, with DTCs P0087/P1093 or P2293

This condition could be caused by excessive wear of the intake camshaft lobe that drives the high pressure fuel pump. The wear limits maximum pump piston lift, causing fuel rail pressure fluctuations. The wear on the camshaft lobe can also lead to wear on the base of the high pressure fuel pump cam follower.

Diagostic Dilemmas: Lost in ‘The Diagnostic Woods’

This real-world case study of a 2002 Chevy S-10 pickup, a 1995 Buick and a 1995 Lincoln Town Car illustrates why “chasing” trouble codes can get you lost in the Diagnostic Woods.

Walker Products a Winner at AAPEX 2010

Walker Products of Garden Grove, CA, won multiple awards at last month’s AAPEX Auto Show in Las Vegas. The company was awarded in two categories: “Best New Packaging of a Product for Import Cars or Trucks” and “Best New Catalog of a Product Line for Import Cars or Trucks.”

EPA Allows for the Selling of E15 Fuel for Newer Vehicles

A decision on the use of E15 in model year 2001 to 2006 vehicles will be made after EPA receives the results of additional DOE testing, which is expected to be completed in November.

Directions: E15 — Helping or Hurting American Drivers?

At Issue: E15 fuel blends could be available by March or April of 2011, assuming the EPA makes two approvals for use of E15 in 2001 cars and newer models by the end of the year.

Tech Feature: Delivering the Fuel – Not a Fuel Pump Return

Although electronic fuel injection has become the norm since the late 1980s, some technicians still don’t understand the value of having a good diagnostic procedure for testing electric fuel pump functions. While this is not something a repair shop owner wants to hear, proper fuel component testing has become a growing industry issue, as unnecessary parts warranty returns continue to be a problem for manufacturers.

Independent Research Shows E15 Poses Minimal Risk to Older Vehicles

The conclusion of the Ricardo study is that the adoption of E15 as the blend limit for standard US pump grades of gasoline should not adversely affect vehicles manufactured between 1994 and 2000.

Tech Feature: General Motor’s Ecotec 2.0L Turbo Engine

General Motors introduced its powerful Ecotec 2.0L direct

Groups Form To Delay E15 Fuel

The groups contend that E15 could harm many types of vehicle engines, fuel systems and components, as well as the environment.

Misfires in OBD II Engines: How to Detect

With OBD II, there’s no missing misfires. Most engine control systems with OBD II monitor the speed of the crankshaft between cylinder firings to detect misfires. The powertrain control module (PCM) notes the relative position of the crankshaft via the crankshaft position sensor (CKP) each time a trigger pulse is sent to the ignition system.

Tech Feature: Diagnosing the Blue Car Syndrom of a Random Stalling Condition

Blue Car Syndrome is the non-technical term for a very common phenomenon. It is the experience that many people possess regarding having a specific observation, idea, experience, etc., enter one’s consciousness, and then having it seem that the same observation or experience begins to occur with increased frequency.

Tech Feature: Engine Technology Gets a Boost

As a technician, you’ll need to understand how Ford’s EcoBoost turbocharged gasoline direct injection engine works, since the automaker plans to incorporate it in 90% of its new vehicles over the next three years.