Dtc
P0022 Toyota - Camshaft Position \'A\' Timing Over-Retarded Bank 2
Possible causes
- Dirty Oil
- Faulty variable valve timing (VVT)
- Faulty oil control valve (OCV)
- Variable Valve Timing (VVT) harness is open or shorted
- Oil Control Valve (OCV) circuit is open or shorted
- Damaged Engine Control Module (ECM)
Tech notes
If the engine oil is clean and the VVT and OCV circuits are OK, replaced the VVT to resolve the problem.
When is the code detected?
After the ECM sends the target duty cycle signal to the OCV, the ECM monitors the OCV current to establish an actual duty cycle. The ECM determines the existence of a malfunction and sets the DTC when the actual duty cycle ratio varies from the target duty cycle ratio.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of power
- Engine rough idle
P0022 Toyota Description
The Engine Control Module (ECM) controls the Oil Control Valve (OCV) to regulate the intake camshaft angle. As a result of the angle change, the engine timing is advance or retard. Optimizing engine timing will help the engine improve torque and fuel economy, and the exhaust emissions decrease under overall driving conditions. The Variable Valve Timing (VVT) system includes the Oil Control Valve (OCV) and VVT controller. The ECM detects the actual intake valve timing using signals from the camshaft and crankshaft position sensors, and performs feedback control.
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POO22 "A" Camshaft Position-Timing Over-Retarded (Bank 2)
Lots to read on the internet about it
Maybe a VCT Solenoid
Could be several things-Google the code & read up
I suspect when you have VVT or VCT issues, it starts with
seldom changing your motor oil & goes down hill from there,
until you have clogged cam oil passage,failed solenoids &
failed cam actuators & end up tearing the motor apart
Mostly avoidable
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a local auto parts store will have every thing you need including manuals
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Once off, you can either a) buy a replacement handle (expensive) or b) do what I did and simply make a piece of L-shaped metal to lever the release mechanism from the outside.
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SOURCE: integration relay p/n 82641-08020 for my 2000 Toyota Sienna van
Dealer Item ` $200
Junk Yard ~ $100
https://toyotapartscenter.net/toyotasiennaparts.html?gclid=CPX5u8HUlZ4CFSn6agod6Ae1oQ sells them for $167.17 + shipping and tax
PH; 800-516-1455
I recommend a pull, light tap and reconnect, recheck B4 buying. Also, shop manual has proper test procedure, Pages BE16-17
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