Basic Inspection (Cont'd)
EF & EC-522flowchartApplies to SR20DET. Idle set rpm 850 ± 50 rpm in N position; throttle sensor idle output 0.45 to 0.55V.
TROUBLE DIAGNOSES
Basic Inspection (Cont'd)
1
A (continued from previous page)
2
CHECK IDLE ADJ. SCREW INITIAL SET RPM. 1. Select "IGN TIMING ADJ" in "WORK SUPPORT" mode. 2. When touching "START", does engine rpm fall to 850 ± 50 rpm (in "N" position)? — OR — When disconnecting throttle sensor sub-harness connector, does engine rpm fall to 850 ± 50 rpm (in "N" position)?
No
Adjust engine rpm by turning idle adjusting screw.
Yes
3
CHECK THROTTLE SENSOR IDLE POSITION. 1. Perform "THROTTLE SEN. ADJ" in "WORK SUPPORT" mode. 2. Check that output voltage of throttle sensor is 0.45 to 0.55V. (Throttle valve fully closes.) and "IDLE POSITION" stays "ON". — OR — Measure output voltage of throttle sensor using voltmeter, and check that it is 0.45 to 0.55V. (Throttle valve fully closed.)
N.G.
1. Adjust output voltage by rotating throttle sensor body. 2. Disconnect throttle sensor harness connector for a few seconds and then reconnect it. 3. Confirm that "IDLE POSITION" stays "ON".
1. Adjust output voltage by rotating throttle sensor body. 2. Disconnect throttle sensor harness connector for a few seconds and then reconnect it. 3. Confirm that "IDLE POSITION" stays "ON".
O.K.
4
Go to B on next page.