Volvo - Fuel & Exhaust - Oxygen Sensor
Oxygen Sensor Tester Art No. 51.1300 This inexpensive tool quickly and easily tests oxygen sensors
The oxygen sensor senses the amount of oxygen in the exhaust after combustion. It then produces a voltage of 0 to 1 volt. If the amount of oxygen in the exhaust is high the oxygen sensor will produce a low voltage (below 450 millivolts). If the amount of oxygen in the exhaust is low the sensor will produce a high voltage (above 450 millvolts). The Scan-Tech oxygen sensor tester easily tests the voltage output from the oxygen sensor. An LED lights when the sensor produces a high voltage and goes off when the sensor falls below a low voltage. This tester can make testing an oxygen sensor simple.
Scan-Tech's Oxygen Sensor Tester features:
9-volt alkaline battery required
Titanium Oxygen Sensor Type Art No. Three Wired
Colour:
Black Connection: Signal out
Red Heat +
White is Signal feed Heat -51.11015 
Four Wired
Colour:
Black Connection: Signal out
Red Heat +
White Heat -
Yellow Signal in51.11016 
Checklist:
1. Check the number of cables on the Original Sensor
2. Check the colour of the cables.
A. If the Original Sensor has a Black, Grey, Purple or White cable it's a ordinary Sensor.
B. If the Sensor has a Red cable it's a Titanium Oxygen Sensor.
Oxygen Sensors, Universal Model Year Bosch No. Art No. 240 2,0 Inj. 2,0/77~82kW 1991~93
1991~930258003034
025800303451.11014
51.11014240 2,1 Inj. 2,1/74~78kW
2,1/77kW
2,1/82kW1977~81
1980~81
1981~840258001004
0258001004
025800103751.11011
51.11011
51.11011240 2,1 Inj. Turbo 2,1/121kW 1980~84 0258001038 51.11011 240 2,3 Inj. 2,3/83~85kW
2,3/84kW
2,3/85kW1982~84
1988~93
1984~880258001037
0258003034
025800300951.11011
51.11014
51.11011260 2,8 Inj. 2,8 1979~82 0258001016 51.11011 360 2,0 Inj. 2,0/80kW 1986~90 0258003009 51.11012 440 ES 1,7/75kW
1989
1989~910258003246
025800304051.11014
51.11014440 Inj. 1,7/70~75kW
1,8/66kW
1988
19910258003246
025800324651.11014
51.11014440 Turbo 1,7/88~90kW 1988 0258003246 51.11014 440 1,6 Inj. 1,6/61kW 1993 0258003246 51.11014 440 2,0 Inj. 2,0/61kW
1993
19880258003246
025800324651.11014
51.11014440 2,0 Inj. 2,0/81kW 1992 0258003246 51.11014 460 GLE 1,7/75kW 1990~91
19910258003040
025800324651.11014
51.11014460 Inj. 1,8/66kW 1991 0258003246 51.11014 460 Turbo 1,7/88~90kW 1990~91 0258003040 51.11014 460 Turbo 1991 0258003246 51.11014 460 2,0 Inj. 2,0/81kW 1992 0258003246 51.11014 480 ES 1,7/70~75kW
1,7/75kW1987~89
1989~91
19910258003040
0258003040
025800324651.11014
51.11014
51.11014480 Inj. 2,0/81kW 1992 0258003246 51.11014 480 Turbo 1,7/88~90kW 1988~91
1991
0258003040
025800324651.11014
51.11014740 2,0 Inj. 2,0/82kW 1989~91
1989~910258003009
025800303251.11012
51.11014740 2,0 Inj.Turbo 2,0/105kW 1990~92 0258003090 51.11014 740 2,0 16Turbo int. /140kW 1990~92 0258003090 51.11014 740 2,3 Inj. 2,3/85kW
2,3/96kW1984~94
1984~94
1990~920258003009
0258003034
025800303451.11012
51.11014
51.11014740 2,3 Inj. Turbo 2,3/114~119kW 1984~94 0258003006 51.11014 740 2,3 Turbo int. 2,3/114~119kW 1989~91 0258003090 51.11014 740 2,3 Inj. 16 2,3/111~117kW 1988~91 0258003034 51.11014 760 2,0 16Turbo int. /140kW 1990~92 0258003090 51.11014 760 2,3 Inj. Turbo 2,3/114~119kW 1984~89
1989~920258003006
025800309051.11014
51.11014760 2,8 Inj. 2,8/100kW
2,8/105kW1982~86
1986~910258001037
025800303451.11011
51.11014780 2,8 Inj. 2,8/110kW 1987~91 0258003034 51.11014 850 T-5 2,3/166kW 1993~94
1994~0258003336
025800359351.11022
51.11022850 2,0 Inj. 2,0/96kW 1992
19920258003120
025800337351.11022
51.11022850 2,0 Inj. Turbo 2,0/150kW 1994~ 0258003336 51.11022 850 2,3 Inj. Turbo 2,3/177kW 1994
1994~0258003336
025800333551.11022
51.11022850 2,4 GLT 2,4/125kW 1993~
1993~
1991
19910258003336
0258003335
0258003120
025800337351.11022
51.11022
51.11022
51.11022940 2,0 Inj. 2,0/82kW 1992~93
1993~0258003034
025800338051.11014
51.11014940 2,3 Inj. 2,3/84kW
2,3/96kW
1992~93
1993
1991~93
1993~0258003034
0258003378
0258003034
025800338051.11014
51.11014
51.11014
51.11014940 2,3 Inj. 16 2,3/114kW 1990~92 0258003034 51.11014 940 2,3 Inj. 2,3/84kW 1994~ 0258003378 51.11014 960 Turbo interc. 2,0/105kW 1992~93
19930258003090
025800338151.11014
51.11014960 2,0 Turbo 16 int. /140kW 1992~93
19930258003090
025800338151.11014
51.11014960 2,3 Turbo 16 int. /121kW 1991~94
1991~940258003376
025800338151.11014
51.11014960 2,8 Inj. 2,8/110kW 1990~91 0258003034 51.11014 960 3,0 Inj. 2,9/150kW 1990~94 0258003119 51.11014 960 3,6 Inj. 1994~ 0258003592 51.11014 
What They Do:
The Oxygen Sensor (also know as Lamda sensor) is located in the exhaust manifold. It measures the amount of 'unburned' oxygen in the exhaust and signals the carīs onboard computer whether the mixture is too lean or too rich.
Failure Symptoms:
Oxygen Sensors with Terminals Type & Length in Inches O/E Ref. Art No. 
Single wire terminated
O.L. 23,0"1274367
127695151.4367 Single wire terminated
O.L. 39,75"1274376
127474651.4376
1276951Three wire terminated
O.L. 38,5"1346738
1346962
353140051.6738 Three wire terminated
O.L. 66,5"1378123
350175351.8123 Three wire terminated
O.L. 67,5"6842910 51.2910 Three wire terminated
O.L. 36,5"9135621
913579451.5621 Four wire terminated
O.L. 21,00"6842522
913566451.2522 Four wire terminated
O.L. 71,00"6842619 51.2619 Please, request our complete Universal Oxygen Sensor Catalog!
© 1999 Scan-Tech Sweden and Northern Heart Media