U0891 Volvo Auto Trouble Code
U0891 Volvo the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.
The leak detection pump is part of the evaporative emissions system. This system tests the fuel system to make sure it is not leaking fuel vapors into the air. The system pulls a vacuum on the fuel system and holds it for a period of time.
U0891 Volvo Possible Solution:
Brake Switch Out of Self-Test Range Indicates that during Key On Engine Off (KOEO) Self-Test, BPP signal was high. Or during Key On Engine Running (KOER) Self -Test, the BPP signal did not cycle high and low. Open or short in (BPP) circuit Open or short in stoplamp circuits Damaged PCM Malfunction in module(s) connected to BPP circuit (Rear Electronic Module [REM] Windstar and LS6/LS8 and Lighting Control Module (LCM) Continental and Town Car) Damaged Brake Switch Misadjusted Brake Switch Check for proper function of stoplamps. Follow correct Self-Test procedures, refer to Section 2, Quick Test.
U0891 Volvo Description For All Models :
- Volvo 120
- Volvo 122
- Volvo 123
- Volvo 140
- Volvo 142
- Volvo 144
- Volvo 145
- Volvo 1500
- Volvo 164
- Volvo 1800
- Volvo 220
- Volvo 240
- Volvo 242
- Volvo 244
- Volvo 245
- Volvo 260
- Volvo 262
- Volvo 264
- Volvo 265
- Volvo 343
- Volvo 360
- Volvo 440
- Volvo 460
- Volvo 480
- Volvo 66
- Volvo 740
- Volvo 760
- Volvo 780
- Volvo 850
- Volvo 850 R
- Volvo 940
- Volvo 960
- Volvo C30
- Volvo C70
- Volvo Duett
- Volvo Hatric
- Volvo P1800
- Volvo P1900
- Volvo P210
- Volvo Pv
- Volvo S40
- Volvo S60
- Volvo S60 Ii
- Volvo S70
- Volvo S80
- Volvo S80 Ii
- Volvo S90
- Volvo Scc
- Volvo V4
- Volvo V40
- Volvo V50
- Volvo V60
- Volvo V70
- Volvo V70 Ii
- Volvo V70 Iii
- Volvo V90
- Volvo Volvo
- Volvo Xc60
- Volvo Xc70
- Volvo Xc70 I
- Volvo Xc70 Ii
- Volvo Xc90
- Volvo Xc90 Ii
- Volvo Ycc
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U0891 Volvo Trouble Repair :
If your vehicle failed a U0891 Volvo test and the U0891 Volvo Check Engine Light is NOT on, chances are you have a problem with the OBDII system, a burned out MIL lamp, or a faulty catalytic converter. The converter is essentially an afterburner that cleans up the exhaust after it exits the engine. The OBDII system uses a ownstream oxygen sensor to monitor the efficiency of the converter, and it should detect a drop in converter efficiency if the converter has been contaminated or is failing (ignition misfiring, leaky exhaust valves, and oil burning can all damage the converter). What you want to look any conditions that might cause ignition misfire, an overly rich or lean fuel condition, or loss of compression. Use your OBD Express DIY to look at the oxygen sensor outputs, coolant temperature, airflow, calculated engine load, and inlet air temperature. |
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