Analyzing Ignition Misfires and Plotting a Diagnostic Course
Uh oh. The Malfunction Indicator Lamp (MIL) is on, and you’ve just found a misfire code. It’s a code P0304, which tells you cylinder number four is misfiring. There are no other codes and the engine has a steady miss. Now what? Misfire diagnosis in this kind of situation should be fairly easy. You have
Exhaust Gas Recirculation Operation and Diagnosis
Since exhaust gas does not burn, this lowers the combustion temperatures and reduces NOx emissions from the engine.
BMW 4-Series Service
The 4-series does not stray far from the typical BMW engineering and operation.
Helping Customers Understand the Signs of Fuel Pump Failure
Fuel pump failures are never a one-size-fits-all diagnosis. Different symptoms indicate different problems and often, the pump will still function—albeit erratically—as it fails. Explaining this to customers isn’t always easy, especially because many of them may not know that the fuel pump has more than one role. Shop owners and technicians can help customers understand
Diagnosing Catalytic Converter Problems (Video)
There are multiple steps to diagnosing a possible air related issued on a catalytic converter. Sponsored by AP Emissions.
How To Efficiently Diagnose Subaru DTC P0171
Improperly diagnosing a trouble code can cost time and efficiency. A good start will give a good finish.
Changing Maintenance Approach for Inactive Vehicles
2020 has added many new challenges to our everyday lives, including vehicle maintenance. With more vehicles sitting unused for long periods, drivers face deciding when to have scheduled maintenance performed and experiencing new issues with their vehicles. Vehicles are meant to be used, and disuse can create severe problems if preventative measures are not taken.
How Computers Think
The ways a bad battery can drive a simple diagnosis off the rails are many, so let’s begin this month’s Diagnostic Solutions by reviewing the foundational aspects of how volts, amps and ohms can affect advanced vehicle diagnostics.
NHRA Top Sportsman Don O’Neal Unveils New NGK/NTK Sponsored Car
O’Neal has used NGK racing spark plugs in his 1999 Monte Carlo 632 Big Block Chevy engine with three-stage nitrous for the past five years and now O’Neal will look to use NTK engine sensors in a new race car. NTK is a member of the NGK Spark Plugs family of brands.
Volkswagen, Audi Direct Fuel Injection System
For the past decade, almost every vehicle that Volkswagen and Audi has sold in the U.S. has been equipped with direct fuel injection. These FSI, TSI and GDI systems allow for better fuel economy and power. The switch to direct injection has also allowed Volkswagen to downsize its engines from 2.0L to 1.4L on base models without losing any power, while still improving fuel efficiency.
