Thursday, May 9, 2019

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 161

2019 Infiniti M35 V6-3.5L (VQ35HR) Diagnostic and Repair Information Page 161



3. Check resistance between HO2S2 terminals as per the following.



Is the inspection result normal?



YES - INSPECTION END



NO - GO TO 2.



2.REPLACE HEATED OXYGEN SENSOR 2



Replace malfunctioning heated oxygen sensor 2.



CAUTION:



- Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a



concrete floor; use a new one.



- Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread



Cleaner [commercial service tool (J-43897-18 or J-43897-12)] and approved anti-seize lubricant



(commercial service tool).



- INSPECTION END



P0075



P0075, P0081 IVT CONTROL SOLENOID VALVE



Description



Intake valve timing control solenoid valve is activated by ON/OFF pulse duty (ratio) signals from the ECM.



The intake valve timing control solenoid valve changes the oil amount and direction of flow through intake valve timing control unit or stops oil



flow.



The longer pulse width advances valve timing.



The shorter pulse width retards valve timing.



When ON and OFF pulse widths become equal, the solenoid valve stops oil pressure flow to fix the intake valve angle at the control position.