GS 450h V6-3.5L (2GR-FSE) Hybrid (2007)
Air/Fuel Mixture: Testing and Inspection
CO/HC
INSPECT CO/HC
HINT: This check for determines whether or not the idle CO/HC complies with regulations.
(a)
Start the engine.
(b) Keep the engine speed at 2,500 rpm for approximately 180 seconds.
(c)
Insert the CO/HC meter testing probe at least 40 cm (1.3 ft) into the tailpipe during idling.
(d) Immediately check CO/HC concentration at idle and 2,500 rpm.
HINT:
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When performing the 2 mode (2,500 rpm and idle) test, follow the measurement order prescribed by the applicable local regulations.
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If the CO/HC concentration does not comply with regulations, troubleshoot in the order given below.
(1) Check the A/F sensor and heated oxygen sensor operation.
(2) See the table below for possible causes, then inspect and correct the applicable causes if necessary.
Part 1
Part 2