Question about 2001 Volvo S40

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VVT VALVE I NEED TO KNOW IF THE VVT VALVE IS A DIFFICULT JOB AND WHAT ARE THE CONSEQUENCES THE DEALER TELLS ME CHECK ENGINE LIGHT WILL CONTINOUSLY GO ON

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ITS NOT HARD AT ALL IF I REMEMBER CORRECTLY IT SHOULD BE LOCATED ON THE FRONT LEFT OF THE ENGINE, BUT A COUPLE OF THINGS CAN GIVE YOU A CODE FOR THAT VALVE, LIKE LOW OR DIRTYOIL, WHAT CODE IS IT??

Posted on Jan 30, 2009

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P0022 for 2004 toyota sienna van


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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Aug 14, 2014 | Cars & Trucks

2 Answers

What is code 1388 on a jaguar 2001 and how to fixit


this indicates a problem with the variable camshaft timing and possibly requires reprogramming PCM module
assume the engine warning light is on? does the engine run normal?

Jun 25, 2014 | 2001 Jaguar S-Type

1 Answer

Check engine light came on and I had pep boys test it. These codes came back PO0303 and PO0171 how do I fix it?


P0303 is a misfire on cylinder 3 - check the ignition and injector on that cylinder.
P0171 means engine is running lean (probably related to the above).
Start by checking the tune of the engine, verifying with a timing light that all cylinders have spark. Since these are coil over plug, swapping cylinder 2 with cylinder 3 should result in P0302 in addition to P0303 DTCs being set. If there's a problem with the VVT (Variable Valve Timing system) then there should be a DTC associated with that as well.

If you have spark, then it goes on towards a faulty injector. If both spark and fuel are present, it's possible that the VVT (Variable Valve Timing) system is freewheeling cylinder 3. Usually that implies the hydraulic lifter seals are faulty though there should be a noticeable valve tap at idle.

In any case, testing out ignition then fuel then ruling out VVT-related issues should resolve the problem completely. I have seen many of these have problems with the plumbing to the valve lifters getting clogged and that results in a dead cylinder.

Oct 06, 2013 | 2005 Volvo S40

2 Answers

P0011 Emgine code on 2007 Kia Optima


Have you had a timeing belt done? The code refers to the VVT (Variable Valve Timeing) or VCT (Variable Cam Timeing) Same thing. It may need a cam sensor replaced or a problem with the VVT control solinoid This can happen if the VVT solinoid has been unbolted for some reason. The computer of the car may just need to be re set if your lucky

Jun 27, 2012 | Kia Optima Cars & Trucks

1 Answer

Whats is a solution for p1349 vvt


- Dirty or low engine oil
- Valve timing
- Oil control valve
- Variable Valve Timing controller assembly
- Engine Control Module (ECM)

you can use MVCI check your car and clear the fault codes.

May 21, 2012 | Toyota Yaris Cars & Trucks

3 Answers

Check engine light code p1349


Code P1349 VVI Malfunction Bank 1. Bank 1 the difficult side where the intake body is.

This could be from a slight misfire from poor air. Ensure that the gas cap is on fully and not airtrapped.

Mar 08, 2011 | 1999 Lexus Gs 400

1 Answer

Need to know what the code is on 2003 toyato corolla- p1349vvt. check engine and oil light comes on.


Variable valve timing (vvt-i) works with oil pressure, if your oil is dirty or low it would set this code, if somebody did a big engine job and use too much silicon base gasket that gasket can travel all the way to oct filter and clog it, starving the vvt gear.


solution check the oil level and condition
Low put some to the right level.
dirty and heavy do a couple oil changes, code still there, ask your mechanic to clean the oct filter and check the vvt actuator for debris .

Jan 09, 2011 | 2003 Toyota Corolla

1 Answer

I HAVE p0010 code Problem.CAMSHAFT POSITION ACTUATOR CIRCUIT


P0010 - "A" Camshaft Position Actuator Circuit (Bank 1)

A P0010 code refers to the VVT (variable valve timing) or VCT (variable camshaft timing) components and the car's PCM (powertrain control module). That consists of an oil control valve (OCV), also called a solenoid valve and other components. Basically the check engine light and associated P0010 trouble code means that the voltage in the circuit has fallen below a set limit for a specific amount of time (varies by make/model/engine).

Symptoms may include:
* Check Engine Light illuminated (Malfunction Indicator Lamp)
* Rough running
* other symptoms may also be present

Causes: A code P0010 may mean that one or more of the following has happened:
* Faulty oil control valve (OCV)
* Open or short in the VVT/VCT circuit
* Open or short in the OCV / solenoid valve
* Damaged computer (PCM)

Possible Solutions: Some recommended troubleshooting and repair steps are:
* Carefully inspect the Bank 1 VVT/VCT system circuit wiring and connectors, repair as required
* With a warm engine, test the operation of the OCV, replace/repair as needed


Hope this helps to solve it (remember to rate this answer).

Nov 15, 2010 | Chevrolet Chevy Cars & Trucks

1 Answer

I was in my sister's 2004 Chevy Trailblazer and it was acting up. First the service engine soon light has been on. I was driving and the engine started revving up and down then it stopped accelerating...


The VVT (variable Valve Timing) solenoid may be dirty and will need to be cleaned or replaced. Poor maintenance (lack of oil change) will cause carbon and sludge to accumulate on the VVT screen causing the VVT to stick which will cause the issues your experiencing.
You may get lucky by trying to clean the VVT by adding a can of Seafoam to your engine oil and running it in there for the next 250 miles and then giving the Trailblazer oil and filter service with the recommended 5W-30 weight oil, anything heavier may cause the VVT not to function correctly as it is now.
Start with the simple and add Seafoam (Auto Zone, Part Source) carries the product. Service the engine oil after 250 miles, and at worst you may have to replace the VVT solenoid which is simple to do. Keep me posted if you have to replace the VVT.
Thank you for using fixya and be safe

May 13, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

Vvt-i pros and cons in 2.4lts. toyota cars


The VVT-i will outperform a car without it. ANY car with variable valve timing is a PLUS. Under hard acceleration, the duration of the valve opening timing changes, this results in a bit more power. Then, at idle.easy acceleratin, they change again. They continously change, depending on your driving...it "Learns", your driving...that is the " i " part in VVT-i.
Varible Valve TIming (with) intelligence". It's a good thing.

A FixYa rating would be most appreciated.

Dec 25, 2008 | 2000 Toyota Camry

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