Measure Hc/Co Concentration At Idle - Toyota 7M-GE Repair Manual

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RACE ENGINE AT 2,500 RPM APPROX. 2 MINUTES.,
IkRT TESTING PROBE OF HCKO METER INTO TAIL
PIPE AT a0 cm (1.3 ftt)
MEAS,URE HC/CO CONCENTRATION AT IDLE
Wait $t lest one minute before measuring to allow the
concentration to stabilize.
Complete the measuring within -three minutes.
Idle CO concentration:
0 - 0.5 %
If the CO/HC concentration do& not conform to your
regulations, see the table in page EM-20 for possi,ble
cause+.
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