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Home >> Land Rover >> 2022 >> Defender 90 X >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Fuel Charging And Controls - Turbocharger - INGENIUM 2.0L Petrol/INGENIUM I4 2.0L Petrol - PHEV -- Defender/L663) >> Fuel Charging And Controls - Turbocharger - INGENIUM I4 2.0L Petrol/INGENIUM I4 2.0L Petrol - PHEV (G2748212) >> Description And Operation >> Turbocharger - INGENIUM I4 2.0L Petrol - PHEV (G2748213) >> Description >> Compressor RECIRCULATION Valve

Compressor RECIRCULATION Valve

WARNING: This page is about a different variant/trim than selected.
G14059711Courtesy of JAGUAR LAND ROVER NORTH AMERICA, LLC
ITEM DESCRIPTION
1 Turbocharger
2 Clean air intake pipe
3 CRV hose
4 Charge air pipe
5 CRV valve

The CRV is located in the charge air pipe and secured with 3 screws. The charge air pipe connects the compressor outlet and the charge air cooler. The CRV is controlled with a PWM  signal by the PCM  .

During a quick throttle closing event the CRV prevents the charge air flow from turning around and flowing through the compressor, which would cause compressor surge. The CRV allows the pressurized air to recirculate from the charge air pipe to the compressor intake, preventing compressor surge during the quick throttle closing events.