Ls VTEC integra codes 21 , 9

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STERLING113

New Member
I have a check engine light and the codes 21 and 9 show up. My vtec isn't working, anybody know what it could be?
 

bighavic

New Member
Those codes are
DTC 9 A problem in the Cylinder Position (CYP) Sensor circuit. (In the Dizzy)
Check the wiring making sure all the connections make contact with each other, meaure the orange and white wires (Pin B11 B12) for 350 to 700 ohms if not repair the wire, or possibly dizzy and/or ecm.
DTC 21 A problem in the VTEC Solenoid Valve circuit.
Check the wiring making sure all the connections make contact with each other, also check for 14-30 ohms on the connector if not replace the solenoid.
 
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