Tailpipe Emission - Honda Prelude 1993 Service Manual

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Table of Contents

Emission Gontrol System

System Description

The emission control system includes a Three Way Cata-

lytic Converter (TWC), Exhaust Gas Recirculation IEGR)

system, Postitive Crankcase Ventilation (PCV) system

and Evaporative Emission (EVAP) control system. The

emission control system is designed to meet federal and

state emission standards,

Tailpipe Emission

Do not smoke during this procedure. Keep

any open flame away ltom your wotk alea.

1. Start the engine and warm up to normal operating

temperature by driving on the road.

Connect a tachometer.

Check and adjust the idle speed, if necessary (see

p a g e 1 1 - 1 1 1 ) .

Warm up and calibrate the CO meter according to

the meter manufacturer's instructions.

Check idle CO with lhe headlights, heater blower,

rea. window defogger, cooling fan. and air condition-

CO meter should indicate O.1 % maximum, -

Troubleshooting