Idle Speed/Ignition Timing/Idle Mixture Ratio Inspection
EF & EC-228flowchartGA16DE engine. Idle CO%: 1.5 ± 0.5. Idle speed M/T 750 ± 50 rpm, A/T 800 ± 50 rpm (in "N"). Ignition timing 10° ± 2° B.T.D.C.
MIXTURE RATIO INSPECTION
With "CO"-meter
Mixture Ratio Inspection - With "CO"-meter
1
INSPECTION START
2
Check and adjust idle speed and ignition timing. (Refer to EF & EC-66.) Idle speed: M/T 750 ± 50 rpm, A/T 800 ± 50 rpm (in "N" position); Ignition timing: 10° ± 2° B.T.D.C.
O.K.
3
Race engine (2,000 - 3,000 rpm) 2 or 3 times under no-load, then run engine at idle speed.
4
Check "CO" with "CO"-meter. Idle "CO"%: 1.5 ± 0.5
O.K.
(B)
N.G.
5
Turn off engine and remove air flow meter from vehicle.
6
Drill a hole in seal plug which seals variable resistor of air flow meter and remove seal plug.
7
Install air flow meter on vehicle. Start engine and warm it up until water temperature indicator reads normal operating temperature.
8
Race engine (2,000 - 3,000 rpm) 2 or 3 times under no-load, then run engine at idle speed.
9
Adjust "CO"% by turning variable resistor on air flow meter. Idle "CO"%: 1.5 ± 0.5
10
Turn off engine and remove air flow meter from vehicle.
11
Insert new seal plug into variable resistor hole. Tap seal plug with a suitable bar, thereby installing seal plug on air flow meter.
12
(A)