Co/Hc Inspection - Toyota T100 1996 Service Manual

P15056
1996 TOYOTA T100 (RM449U)
ENGINE MECHANICAL (3RZ−FE)
CO/HC
INSPECTION
HINT:
This check is used only to determine whether or not the idle CO/
HC complies with regulations.
1.
(a)
(b)
(c)
(d)
(e)
HINT:
All vacuum hoses for EGR systems, etc. should be properly
connected.
(f)
(g)
(h)
(i)
2.
3.
4.
5.
HINT:
When doing the 2 mode (2,500 rpm and idle) test, follow the
measurement order prescribed by the applicable local regula-
A03712
tions.
− CO/HC
INITIAL CONDITIONS
Engine at normal operating temperature
Air cleaner installed
All pipes and hoses of air induction system connected
All accessories switched OFF
All vacuum lines properly connected
SFI system wiring connectors fully plugged
Ignition timing set correctly
Transmission in neutral position
Tachometer and CO/HC meter calibrated by hand
START ENGINE
RACE ENGINE AT 2,500 RPM FOR APPROX. 180
SECONDS
INSERT CO/HC METER TESTING PROBE AT LEAST
40 cm (1.3 ft) INTO TAILPIPE DURING IDLING
IMMEDIATELY CHECK CO/HC CONCENTRATION AT
IDLE AND/OR 2,500 RPM
Author :
EM−1
EM06Q−03
Date : 716