The General "Closed Loop" Feed Back Control System Diagram; Electronic Fuel Injection "Closed Loop" Feed Back Control System - Triumph TR7 Owner's Manual

EMISSION AND EVAPORATIVE LOSS CONTROL SYSTEMS
By usmg oxygen sensor(s) to monitor the eKhausl gases
In
this way a feed back closed loop·
type
of control system can
be Introduced for the fuelln/ecllOn operatIOn
Fig. 20 The general 'closed loop' f.ed back control system
,--I_NFO_OTH_RM_~_~_I_O_N...J~-':f = -- = =
--.:-=
I
l
AIR FLOW
I
ME"TER
I
1
.:!f
E.C.U.
~
I MODIFY
I
FUEL IHPtrr
I
T
I
OXYGEN SENSOR
I
I
AIR
land
I
FUEL
1 _ _....'
COMBUSTION
I••
~""I
EXHAUST GASES
I
2173
FIg. 21 ElectroniC fuel injection
·clo.ed
loop'
f.ed
back control system
17