Question about 1987 Volvo 740
Hi this is quite easy, look from the exhaust manifold and follow it down under car, you might have 2 of these sensors, one should be in the down pipes near the manifold, the other should be just after the catalytic converter, they look like long tubes with wires on bolted into the exhaust, they are about 11/2 long
Hope that helps........
Posted on Sep 30, 2010
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Posted on Jan 02, 2017
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Sep 21, 2015 | Cadillac Cars & Trucks
Trouble Code: P1113
O2 Control (Bank 1 Sensor 1) Internal Resistance Too High
Oxygen sensor (before catalytic converter) is faulty. Oxygen sensor (behind catalytic converter) is faulty. Oxygen sensor heater (before catalytic converter) is faulty. Oxygen sensor heater (behind catalytic converter) is faulty. Circuit wiring has a short to power or ground. Engine Component Power Supply Relay is faulty . E-box fuses for oxygen sensor are faulty . Leaks present in the exhaust manifold or exhaust pipes. HO2S signal wire and ground wire crossed in connector . HO2S element is fuel contaminated or has failed. ECM has failed .Here is what is listed.
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