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2. Toyota Corolla (E30) - Wikipedia

   en.wikipedia.org/wiki/Toyota_Corolla_(E30)

   In 1975, Toyota introduced the TTC-L (Toyota Total Clean-Lean Burn) on the 12T engine only, using a lean burn implementation. in 1976, Toyota introduced the TTC-C (Toyota total clean-Catalyst) on the 3K-U engine, using single bed catalytic converter and lambda close-loop oxygen sensor with a supercharger smog pump.

3. OBD-II PIDs - Wikipedia

   en.wikipedia.org/wiki/OBD-II_PIDs

   Oxygen Sensor 2 A: Voltage B: Short term fuel trim 16: 22: 2 Oxygen Sensor 3 A: Voltage B: Short term fuel trim 17: 23: 2 Oxygen Sensor 4 A: Voltage B: Short term fuel trim 18: 24: 2 Oxygen Sensor 5 A: Voltage B: Short term fuel trim 19: 25: 2 Oxygen Sensor 6 A: Voltage B: Short term fuel trim 1A: 26: 2 Oxygen Sensor 7 A: Voltage B: Short term ...

4. Lean-burn - Wikipedia

   en.wikipedia.org/wiki/Lean-burn

   Toyota also referred to an earlier lean-burn system as "Turbulence Generating Pot" (TGP). TTC-L was used in Japan on Toyota Carina T150 replacing the TTC-V (Vortex) exhaust gas recirculation approach used earlier, Toyota Corolla E80, and Toyota Sprinter. The lean mixture sensor was provided in the exhaust system to detect air–fuel ratios ...

5. Check engine light - Wikipedia

   en.wikipedia.org/wiki/Check_engine_light

   [citation needed] Volvo had a light labeled "lambda", lambda sond being another name for oxygen sensor. This was done in order to remind the driver to change the oxygen sensor. Some American-built 1973–1976 Chrysler Corporation vehicles had a similar odometer-triggered reminder: "Check EGR", which was reset after service at a Chrysler dealership.

6. Oxygen sensor - Wikipedia

   en.wikipedia.org/wiki/Oxygen_sensor

   An oxygen sensor (or lambda sensor, where lambda refers to air–fuel equivalence ratio, usually denoted by λ) or probe or sond, is an electronic device that measures the proportion of oxygen (O 2) in the gas or liquid being analyzed. [1] It was developed by Robert Bosch GmbH during the late 1960s under the supervision of Günter Bauman. [1]

7. Secondary air injection - Wikipedia

   en.wikipedia.org/wiki/Secondary_air_injection

   Pumped air injection systems use a vane pump called the air pump, AIR pump, or colloquially "smog pump" turned by the engine via a belt or electric motor.The pump's air intake is filtered by a rotating screen or the vehicle air filter to exclude dirt particles large enough to damage the system.