Acura NSX 1991 Manual page 82

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VTEC
VTEC Solenoid Valve Inspection
1. Disconnect the 2P connector from the VTEC sole-
noid valve.
2. Measure resistance between the BLU/YEL (front/rear)
terminals and body ground.
Resistance: approx 14 - 30 ohms
BLU/YEL
3. If the resistance is within specifications, remove the
VTEC solenoid valve from the cylinder head, and
check the VTEC solenoid valve filter for clogging.
• If there is clogging, replace the engine oil filter
and engine oil.
VTEC SOLENOID VALVE
FILTER/O-RING
Replace.
Table of Contents
VTEC SOLENOID VALVE
6 x 1.0 mm
12 N-m (1.2 kg-m, 9 Ib-ft)
4. If the filter is not clogged, push the VTEC solenoid
valve with your finger and check its movement.
• If VTEC solenoid valve is normal, check the engine
oil pressure.
6 x 1.0 mm
12 N-m (1.2 kg-m, 9 Ib-ft)