Toyota Celica Supra 1986 Service And Repair Manual page 160

Fl-68
FROM
EFI SYSTEM - Air Induction System
AIR INDUCTION SYSTEM
Air Flow M eter
POTENTIOMETER
TO AIR
INTAKE
Cor~penso1rlon
Plato CHAMBER
Mea$uring Platt
A IR
CLEANER
S IDE
Air BY.PiU Pess1ge
AIR CLEANER
Ohmmote<
Fc E ( El Ve E,
r•
THA
I
I
(
D
n
.......
Air ftow
Meter
~
·-
,
.............................. ..
•
•
i ·' :
. .
.
•
.
..
Vs THA
ON-VEHICLE INSPECTION
MEASURE RESISTANCE OF AIR FLOW METER
(al Unplug the w iring coMector from th e air flow mete<.
(b) Using an ohmmeter, measure
tt\e
resi.stenee between
each terminal.
Between
Resis11nce
Temperature
termin.als
E:r - Va 20 - 400 ll
-
E:r - Vc
200 - 400 !l
-
E2 - THA
10 - 20k!l - 2o• c 1 - • • Fl
4 - 7k!l o •c 1 3 2•FJ
2 - 3kll
20•c I 68°Fl
0 .9- 1.3 kll 40•c 11 04°FI
0 .4 - 0 .7 k!l so• c 1140°FI
E1 -Fe
lnfWlity
-
If not w ithin specification, replace the air flow meter.
REMOVAL OF AIR FLOW METER
1 . DISCONNECT NO. 2 AND NO. 3 AIR CLEANER
HOSES
2 . DISCONNECT AIR FLOW METER CONNECTOR
3 . REMOVE AIR FLOW METER
Remove four nuts and one bolt and air flow meter.