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Home >> Volvo >> 1995 >> 850 GLT, 4D Sedan, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 3 (Engine Controls - Tests W/Codes - Non-Turbo (M/T) - MOTRONIC 4.4) >> Circuit Tests >> DTC 448 - Pulsed Secondary Air Injection System (Pair) Pump Flow Fault >> Possible Cause (Flow Too High)

Possible Cause (Flow Too High)

WARNING: This page is about a different car, the 1996 Volvo 850. However, it is still accessible from the selected car via links, so may be relevant.

This DTC is always stored together with DTC 442 (PAIR system flow too high) and DTC 446 (PAIR system valve leakage).

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