DENSO Sales California Releases New 2012 Oxygen and Air/Fuel Sensor Catalog
DENSO Sales California has announced the availability of its new 2012 Oxygen and Air/Fuel Sensor Catalog (#O2AF-CAT-0412), which includes 98 new oxygen sensor part numbers, adding 959 new applications to cover an additional 7.2 million units in operation.
Getting Stoked to Service the 6.0L Power Stroke
If there were one engine that plagues the mid-size diesel world, you would have to say that it is the 6.0L Power Stroke. The 6.0L came into existence because the EPA demanded tighter emissions laws for diesel engines. Even though the 7.3L was branded as the reliable workhorse for Ford, it would never be able to pass the tighter emissions laws that were going to come into effect for 2004.
Tech Tip: Oxygen Sensor Types, Technologies and Common Failures
The purpose of the engine management system (EMS) is to apply the correct amount of gasoline to the air entering the engine, while igniting the compressed air/fuel mixture at the right time within the cylinder. When an average Stoichiometric ratio of 14.7 lbs. of air to 1 lb. of gasoline is maintained, the EMS provides adequate oxygen for the reduction of harmful pollutants, as well as a rich enough mixture to prevent the catalyst from overheating.
Service Solutions: The ‘CKP’ Script
The signal of the position or rotation speed of the crankshaft position sensor (CKP) contains a lot of information about the engine. When the engine is operating, the engine cylinders push on the crankshaft journal. This is why the crankshaft briefly accelerates after top dead center (TDC) on the expansion (or combustion) stroke. If the fuel did not ignite in the cylinder there would no acceleration.
Tenneco Emissions Control Workshop Brings Profitable Repair Strategies to Technicians
Tenneco’s popular Walker Emissions Control Diagnostics Workshop now features an even heavier emphasis on diagnostic emissions control strategies and diagnosing drivability repair issues. Tenneco has partnered with Automotive Training Group (ATG) to bring this unique training experience to professional technicians at more than 40 locations across North America during 2012.
Diagnostic Dilemmas: Going with the Flow
This month’s Diagnostic Dilemma is headlined by a loss of power complaint in a 2002 Toyota 4-Runner equipped with the 3.4L V6 engine and automatic transmission. The 4-Runner had a relatively smooth idle, but wouldn’t shift gears at wide-open throttle (WOT). Because I live high in the Colorado mountains, loss of power complaints are relatively common and, in most cases, can be confirmed by test-driving the vehicle up one of the mountainous inclines in my area.
Free New Wells Vehicle Electronics Video Covers Toyota EVAP Diagnostics
The step-by-step diagnosis and repair of EVAP system issues on a 1999 Toyota Camry LE model is now covered in a free troubleshooting video available from Wells Vehicle Electronics. The company’s Technical Services team produced the video using a Camry LE model that had failed an emissions test as a result of a PO446 code, which indicates that a leak was detected while activating the vacuum switch valve (VSV) during an EVAP monitor test.
Tech Tip: Honda Has MIL On with DTC P1457
The EVAP bypass solenoid valve can fail due to corrosion, caused by water getting inside. If the water contains road salt, the solenoid windings could corrode, causing the valve to fail. In a few rare instances, the corrosion could be severe enough to cause an internal short in the solenoid valve, which could damage the ECM/PCM. If this happens, both the bypass solenoid valve and the ECM/PCM would need to be replaced.
Eastern Catalytic Launches New ECO Carb and Full Line Catalytic Converter Catalogs and Enhances Online Access
Eastern Catalytic has just released two new product catalogs – a 56-page ECO CARB Converter Catalog and a 362-page Full Line Catalog.
ACDelco Adds 99 Ignition, Emissions System Part Numbers
ACDelco has added 99 remanufactured part numbers to its Ignition Systems and Emissions Professional product portfolios. According to ACDelco, these high-quality, remanufactured parts are designed to meet the needs of owners of a broad range of Chevrolet, GMC, Buick, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac and Geo models.
Tech Tip: Hyundai Has Check Engine Light On with Fuel System Lean Code
The check engine light is on with a post catalyst fuel system lean code P2096, an oxygen (O2) sensor stuck lean B1/S2 code P2270, and an O2 sensor no activity B1/S2 code P0140.
Tech Tip: Honda MIL Comes On with DTC P1457 Set
If you encounter a Honda with the MIL on with DTC P1457 (EVAP control system leakage), this may be caused by the EVAP solenoid valve (fuel vent module) being blocked or restricted. To correct this, install an EVAP solenoid valve kit.