Parts of Car Exhaust System and Muffler Repair
Pulling Codes: Hit or Miss? The Story of P0302

It is unfortunate that today misfire analysis can be a hit-or-miss concept on many of today’s engine families. If one views several misfire failures, and documents the behavior of fuel trims, it is reasonable to state that ignition misfires do not have a significant impact on them, whereas fuel-related issues create a significant impact.

Tech Tip: VW’s Check Engine Light is On with Fault Code P0411

When diagnosing various VW and Audi vehicles, the Check Engine Light (MIL) is on and fault code P0411 (16795) is stored in the fault memory.

Tech Tip: Kia MIL Illumination with Front Heated O2 Sensor DTCS

If a 2004-’06 Spectra 2.0L exhibits an MIL on

Tech Tip: Nissan’s Engine Idle Speed is 25 RPM too High

If you confirm the idle, in Park or Neutral, is more than 25 rpm above specification (with the engine warm), and/or DTC P0507 (ISC System) is stored, this incident may be the result of recent cleaning or replacement of the throttle body. The vehicle “in-use” learned idle may be higher after throttle body deposits are reduced (by cleaning or replacement).

Hole in Exhaust System Results in Brake Failure and Fire

A driver in Des Moines, IA, recently experienced brake failure and soon after, the vehicle burst into flames. Firefighters believe the heat generated from a hole in the exhaust system burned through the brake lines.

Bosch Expertise on Oxygen Sensors for Vehicle Manufacturers Benefits the Aftermarket

Bosch has been manufacturing and supplying automotive parts and systems to vehicle manufacturers since the very beginning of the automobile. As inventor, manufacturer and supplier of many ground-breaking automotive technologies – such as the oxygen sensor which was introduced in 1976 – to original equipment manufacturers (OEMs), Bosch enjoys a unique position in being able to bring OE-level quality, fit and function to its aftermarket products.

DynoMax and Rancho Offer Exciting New Marketing Tools to Drive Sales of Performance Products

Ready to set new sales records in your performance exhaust or suspension sales? The performance brands of Tenneco Inc., DynoMax Performance Exhaust and Rancho Suspension, are offering 2011 Merchandising Kits, helping retailers power their sales with several high-impact merchandising tools.

Pulling Codes: Status Really Does Matter

Many modern-day fuel systems offer a new look into system status definitions. It’s become very important to extend our understanding well beyond the concepts of simple “open loop” and “closed loop” status. This month, we will explore the new fuel system definitions that are present on many of today’s vehicles. We’ll begin our discussion by looking at each one on an individual basis.

Undercar Repairs on 1996 to 2005 Volkswagens and Audis

Just as we get used to the types of powertrain, suspension, brake and exhaust systems that are coming into the marketplace, something different comes along. In this article, I’ll take a look at the designs and repair of the suspension, brake and exhaust systems of Volkswagens and Audis from 1996 to 2005. I won’t be able to cover everything in this article, just some of the highlights of the various models.

Walker Spring Exhaust Promotions Benefit Consumers and Professional Technicians

Consumers can save up to $60 and professional technicians can earn similar cash rewards this spring when purchasing qualifying Walker mufflers, welded exhaust assemblies and catalytic converters through two new promotions from Tenneco Inc.

Diagnostic Dilemmas: Solving No-Code Performance Complaints

For many diagnostic techs, nothing is more discouraging and time-consuming than dealing with a no-code driveability complaint. Today’s second-generation On-Board Diagnostics II (OBD II) can be extremely sophisticated because the OBD II powertrain control modules (PCMs) in modern vehicles have far more computing capacity than did the older, pre-1996 OBD I vehicles. Nevertheless, we occasionally have to deal with a no-code performance complaint on a modern OBD II vehicle.

Tenneco Introduces In-Depth Walker Converter Diagnostics and Strategies Workshop

Tenneco Inc. has introduced an intensive emission control diagnostics training workshop under the Walker exhaust brand that will reach automotive service professionals in close to 60 North American cities during 2011.