VDO has been a reliable source of advanced solutions for cars and commercial vehicles for more than 90 years. They are a pioneer in automotive engineering. Today, as part of the Continental Group, they offer original spare parts at the cutting edge of technology. Whether it's vehicle diagnostics, fuel systems, engine actuators, sensors or tire pressure monitoring systems – they supply innovative solutions that are backed by many years of experience as an original equipment manufacturer. You can always count on a precise fit, easy installation and original quality.

Poor acceleration, hesitation and other idling issues can be caused by failure of a variety of parts. Use the chart below to help determine which part is causing the problem.

Installation Tips

• Perform OEM Recommended idle relearn procedure. Some applications may require the use of an OBD Scan Tool while others may refer to the Owners Manual.
• A relearn of idle values can be forced by disconnecting the negative battery cable for several minutes in order to clear the electronic control module's memory.
• Several minutes of idling and highway driving may be necessary to relearn idle values. Electrical loads such as headlights, AC, radio, etc. should be turned off while relearning.
• Erratic idle or engine surging after installation of replacement unit may be resolved by putting a load on the engine. If idle evens out after shifting into gear, shift back into park and check idle RPM - perform relearn again if a drivability condition is present.
• Clean intake manifold mounting surface and replace Intake Manifold Gasket, if necessary.
• Inspect Air Cleaner Intake Hose for cracks and proper sealing - replace or repair with Multi-Purpose Sealant, if necessary.
• Check harness for broken wires and wiggle connector to try and reproduce the problem. Replace or clean Connector, if necessary.
• Clear all diagnostic trouble codes from vehicle computer prior to idle relearn.