Delphi Adds MAF Sensors To Its Engine Management Portfolio
Delphi has added three new Mass Air Flow (MAF) sensors to its engine management portfolio covering more than 8.3 million Toyota and Nissan vehicles from 1997 to present. Part numbers include AF10062 and AF10141.
Diagnostic Solutions: MAF Sensor Testing Methods
Troubleshooting MAF sensor problems can become a major headache for diagnostic technicians because the failure is usually one that involves a calibration error, rather than an outright electrical or mechanical failure.
Diagnostic Solutions: The Relationship Between PCMs, Sensors and Actuators
Not that I recommend installing used PCMs, but I occasionally need a rebuildable core to replace a missing or badly damaged powertrain control module (PCM). But lately, I’ve noticed that it’s becoming increasingly difficult to find a used PCM for an older import at a local auto salvage yard. While it’s sheer speculation on my part, this apparent shortage of PCM cores might be caused by too many poorly trained technicians replacing PCMs to solve sensor-based problems. In most of these cases, the problem remains unsolved even as the original and fully functional PCM is casually tossed into the trash when the tech moves on to another job.
Tech Tip: Kia MIL Illumination with Front Heated O2 Sensor DTCS
If a 2004-’06 Spectra 2.0L exhibits an MIL on
Troubleshooting Wideband O2 Sensors
Many late-model imports such as Honda, Toyota, Volkswagen and others use Air/Fuel sensors rather than conventional oxygen sensors to monitor the exhaust gases coming out of the engine. What’s the difference? An air/fuel sensor can read a much wider and leaner range of fuel mixtures than a conventional O2 sensor. That’s why they’re also called “wideband” O2 sensors.
Tech Tip: GM Mass Air Flow Sensor Failure
Instances of repeated Mass Air Flow (MAF) sensor failure on General Motors applications utilizing the remote-mounted Delco unit can often be traced to an engine back-fire condition. The sudden intake pressure buildup can induce cracking of the heated element resulting in MAF sensor failure.
Tech Feature: Understanding How Wide Ratio Air/Fuel (WRAF) Sensors Work
Instead of giving a simple rich/lean indication, wide ratio air/fuel sensors measure the "actual" air/fuel ratio. A WRAF sensor can measure mixtures that range from extremely rich to extremely lean (even straight air!). This ability allows the PCM to control fuel mixtures much more precisely, to handle much leaner fuel mixtures, to reduce emissions and to improve fuel economy compared to ordinary switching O2 sensors. WRAF sensors react much faster than ordinary O2 sensors, which allows them to ….
Emissions Update: Understanding How Wide Ratio Air/Fuel (WRAF) Sensors Work
Instead of giving a simple rich/lean indication, wide ratio air/fuel sensors measure the “actual” air/fuel ratio. A WRAF sensor can measure mixtures that range from extremely rich to extremely lean (even straight air!). This ability allows the PCM to control fuel mixtures much more precisely, to handle much leaner fuel mixtures, to reduce emissions and
NGK Spark Plugs Launches New Salvage Sensor Recovery Program
NGK Spark Plugs (U.S.A.), Inc. introduces the NTK Oxygen Sensor’s Salvage Sensor Recovery Program (NTK SSRP) to all professional technicians. This program offers professional technicians an option for disposing of replaced sensors regardless of brand ….
‘Sensing’ Problems: A Drop in Fuel Economy and Higher Exhaust Emissions Signal O2 Sensor Replacement
Oxygen sensors have been used for more than a quarter of a century, dating back to 1980 when the first computerized engine control systems appeared. Part of the fuel management system, the oxygen (O2) sensor monitors unburned oxygen in the exhaust. The powertrain control module (PCM) uses this information to determine if the fuel mixture