Whitbread Performance Innovations - TDI CP4 Metering Valve Bypass Kit - Block Only - CP4-MVBK

For those that dont know, the CP4 is the fuel injection pump that is installed on the second generation 3.0 TDIs and 2.0L TDIs. This injection pump uses only its fuel supply for lubrication, diesel first flows into the bottom end of the pump to lubricate the camshaft, rollers, lifters, and bushings before the diesel flows up to the metering valve to be used for injection. Unfortunately, the CP4 can be rather sensitive to fuel quality. If contamination occurs and one of the rollers gets stuck, the pump will start making metal shavings in the bottom end. As the CP4 continues to pump, it is now pumping diesel contaminated with metal shavings through the metering valve and into the rest of the injection system. When this failure occurs the CP4, injectors, fuel rails, rail pressure sensor, pressure control valve, high pressure lines, injector return lines, tank lines, and fuel module will all need to be replaced.This kit doesnt prevent a failure from happening but it does isolate the CP4s lubrication supply from the injection fuel supply and prevents all the other components in the injection system from being damaged. Because of how the metering valve is isolated and given its own supply with this kit, now in the event of a failure only the CP4 and return filter will need to be replaced. No tune is required for proper operation, also works with vehicles that have already been tuned.The 10 micron fuel filter included with the kits also contains a neodymium ring magnet on the outlet side of the element to help further catch any fine metallic particles. Includes the block, o-rings, and socket cap screws for those who wish to source their own ancillary parts.

Please contact us for any fitment questions.

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ECS Tuning was founded in 1962. We have a team of passionate European Car enthusiasts dedicated to providing quality service, products and support.

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ECS Tuning offers a one year warranty against manufacturer defects.

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ECS Tuning reserves the right to cancel or refuse any order at any time without notice. Availablility is subject to change at any time. ECS Tuning sells on multiple channels therefore orders will be filled on a first-come, first-serve basis. We will contact you immediately if there is an oversell situation. Some situations that may result in the cancellation of an order include limitations on quantities available for purchase, inaccuracies, errors in product or pricing information, or problems that are identified by our Credit and Fraud Prevention Department. In some cases we must contact you to obtain and verify additional information before accepting an order. If your order is canceled for any reason or additional information is required, ECS Tuning may contact you by phone and/or email. Please be sure that you verify your contact information on the order as it must be valid to be accepted. If the contact information is fictitious or invalid we reserve the right to cancel an order. For additional information regarding product warranty and returns please contact us.