Committed to being the best, Standard Motor Products manufactures and distributes a full line of engine management related products, including ignition and emission parts, on-board computers, ignition wires, battery cables and fuel system parts.
Features & Benefits:
One-piece laser welded body for maximum protection and precise operation maintaining sensor integrity
Dual internal talc seal makes SMP's Oxygen sensors last longer
Breathable Teflon membrane allows increased air flow for a faster switch rate to improve fuel economy and save the motorist money at the pump
Stainless steel shield protects the element from thermal shock and regulates proper air flow to ensure faster sensor response and better performance
Manufactured with the highest grade materials for prolonged life and superior performance
O2 Sensor Identification Guide
An OBD Scan Tool will usually identify Oxygen Sensors by the Bank Number (B1 = Bank 1) and Sensor Number (S1 = Sensor 1). Bank 1 will always contain Cylinder 1, which is located closest to the front of the engine.
Part manufacturers often use different terms than scan tools to identify sensor positions. Regardless of the vehicle's engine orientation, the right or left bank is determined by viewing the engine from the rear (opposite the drive belts).
A
Upstream Sensor (Before Converter)
B
Downstream Sensor (After Converter)
C
Left or Front Upstream Sensor (Before Converter)
D
Right or Rear Upstream Sensor (Before Converter)
Common O2 Sensor Contaminants
Oxygen (O2) Sensors commonly fail due to contamination. When checking or replacing an O2 Sensor, visually inspect the sensor body to determine if it has been contaminated by a faulty part or substance upstream, and correct the fault before replacing the sensor.
ANTIFREEZE POISONING
Common Causes:
Cracked or warped cylinder head
Leaking cylinder head gasket
Leaking intake manifold gasket
Antifreeze Poisoned O2 Sensor
SILICONE POISONING
Common Causes:
Use of an improper silicone gasket sealant on the engine