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Where are cylinder deactivation solenoids on Honda I-vtec 3.5 L?

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 1997 Honda Accord EX VTEC - engine light on -

replace main relay

Posted on Jul 15, 2009

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outdoorsman5
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SOURCE: location of vtec solenoid screen in 1999 honda

Not sure what engine you have but on a 2.3 it is Left front transaxle.
If it is a 3.0 it is located on the lower right of engine.

Posted on Aug 01, 2009

  • 190 Answers

SOURCE: do i access the vtec solenoid screen on my 1999

The screen is between the head and the noid

Posted on Aug 01, 2009

  • 73 Answers

SOURCE: Honda Crv 2003 check engine light is on. Engine

Tell me what kind of motor oil r you using.regular or synthetic.

Posted on Jan 05, 2010

  • 1 Answer

SOURCE: 2002 Honda Accord vtec 2.3l has a check engine

1.1 o2s(ho2s)(s1) = eng
3.2 map circuit = high input eng
7.1 t p sensor(a) = voltage low eng

Posted on Jun 24, 2010

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1 Answer

How replace a vetchsolonide on 2000 Honda civic


It is quite simple to replace the VTEC Solenoid assembly. It is located on the rear right upper side of cylinder head (right side with reference with if sitting if driver's seat) on the intake side. It is attached to the head by means of 6mm bolts. Just remove the connector (NOTE: It my have single VTEC solnoid or two, depending on the model), remove the bolts and take out the solenoid. Please see the diagram:
25288323-3wzqm3xouk3lbcryrfj11emi-2-0.png
Hope that works. Thank you for visiting Fixya.

Nov 18, 2014 | 2000 Honda Civic

1 Answer

Honda vtec solenoid p1259 code


Why did you change all of those things if you were told it was the VTEC solenoid? Why not try that first? Read online to see if there is a method to clean the solenoid without replacing it. I'm not sure that the VTEC solenoid would cause such problems, but I suppose it's possible. The VTEC system uses oil pressure to change the follower on the cam lobes. It changes between profiles. So at higher RPM, it switches to a different cam profile that is more efficient at higher RPMs. Like having 2 cams in 1.

Nov 29, 2013 | 2002 Honda CR-V

1 Answer

ObdII codeP2649


read only the honda books on P2xxx codes, its unique to honda.
VVT, variable valve timing (cam) magic is unhappy

P2649 Honda - VTEC Solenoid Valve Circuit High Voltage


Possible causes
- Check engine oil level and pressure
- Faulty VTEC Solenoid Valve
- VTEC Solenoid Valve harness is open or shorted
- VTEC Solenoid Valve circuit poor electrical connection

http://engine-codes.com/p2649_honda.html

Aug 02, 2013 | Honda Accord Cars & Trucks

2 Answers

I have a 2004 Honda Civic VTI, the engine checklight came on and I went to 3 different computer diagnostic centres and the scan showed VTEC system failure. I changed the VTEC solenoid, change vtec pre


What is wrong is that you changed a part

You failed to follow any trouble charts because
you have none

The sensor was most likely okey & just doing it's
job of reporting a fault

You could have a mechanical problem such as a timing
belt issue or worn VVT Actuators on the end of the cames

You have to diagnose code related issues & then find out
why a sensor reported as it did

Even if you scoped the sensor you would most likely
assume it was bad,not so,have to keep thinking why the
data was bad

You need professional tools & look at several pieces of data
overlayed on a big sceen at one time

Repair shop or dealer for that issue

Nov 27, 2012 | 2004 Honda Civic

1 Answer

2002 honda civic p1259 problem


P1259 HONDA - VTEC System Malfunction
Possible causes- Low engine oil pressure or level
- Open or short circuit condition
- Faulty VTEC oil pressure switch
- Faulty VTEC solenoid
When is the code detected?The P1259 is set when there is a problem in the VTEC Oil Pressure Switch circuit or VTEC Solenoid Valve circuit

Oct 01, 2012 | 2002 Honda Civic

1 Answer

My honda accord 2003 V6 hiccups when I step on the gas, and the right signals do not work. The code P1259 came up and I was wondering excatly what does that mean?


This is an error code related to VTEC related Honda engines. I am sending you a little reading on that error code.. Best of Luck..


The Check Engine Light (CEL) is on. Trouble code P1259. Tests/Procedures: 1. Locate the Variable Timing/Lift Control (VTEC) pressure switch, on the back of the cylinder block, by the oil filter.

2. The VTEC oil switch is normally closed and grounds the reference voltage from the Engine Control Module (ECM) on the Blue/Black (BLU/BLK) wire.

3. At approximately 4000 RPM, and when driving the vehicle, the VTEC system should turn on. To turn the system on, the ECM energizes the VTEC Solenoid valve and it allows oil pressure into the intake valve rocker arms, the oil pressure opens the VTEC oil pressure switch so the ECM can verify that VTEC did turn on correctly.

4. The code will set below 4000 RPM if the reference voltage is not grounded. The code will set above 4000 RPM if the VTEC oil switch does not open.

5. If the code sets at 4000 RPM or higher, the problem can be a low oil level or pressure, or a malfunction in the VTEC assembly. Potential Causes: Low Engine Oil
Plugged Oil Passage
Insufficient Oil Pressure
Plugged Oil Screen
Insufficient Oil Volume
Malfunctioning VTEC Oil Pressure Switch
Defective VTEC Solenoid
Tech Tips: When the P1259 code sets at 4,000 RPM or higher, always verify that the engine oil level is full. Also, if there is an oil pressure or volume problem, always verify that the oil pan is not pushed up and is too close to the oil pickup tube, causing an oil volume problem. Be very careful when supporting the engine with the oil pan.

Aug 26, 2011 | Honda Accord Cars & Trucks

1 Answer

I took my 200 honda accord to auto zone to get a diagnostic done. the code was p1259. the ticket printout listed 4 things that would be probable cause. 1.open or short circuit condition 2.vtec solenoid...


CHECK VTEC SWITCH OIL PRESSURE.SHOULD BE 50 PSI @3000 RPM FOR THE S2000 OIL PRESSURE SHOULD BE 85 PSI @ 3000 RPM. IF OIL PRESSURE OKAY HAVE TO BE EITHER VTEC SWITCH FAULTY OR VTEC SOLENOID HAS FAILED.SOME TIMES PCM HAS FAILED TO THAT CONTROL CIRCUIT.

Apr 12, 2011 | 2000 Honda Accord

1 Answer

How do you get to the oil solenoid and oil sensor to clean and replace. Is there a screen (filter) at the solenoid and what size wrenched are required.


Do you mean the Vtec solenoid? If you have a CEL (Check Engine Light) illuminated, and you are getting a "P1259" code, it refers to a "Vtec (Variable valve Timing and lift Electronic Control) System malfunction. The Vtec filter screen may be clogged. Disconnect the negative battery terminal. (This will prevent electrical current from going where you don't want it and will reset the CEL. The Vtec solenoid valve is located at the right rear corner of the cylinder head. The Vtec valve is held on with 3- 10mm bolts. Also there is an electical connector that you will want to remove first.

When you take off the solenoid valve, check the valve screen to see if it is clogged. Clean off any crud you find on the filter screens. A good quality spray carburator cleaner works well. If the screen is too yuckked-up to clean, just get a new one. While you are in there, you might want to also check to see that the plunger on the solenoid itself moves freely. If it does'nt, replace it too.

After you put everything back together, do an oil and filter change. Use a high quality oil of the viscosity recommended by the car manufacturer.

God bless and Good luck.

Oct 09, 2010 | 2004 Honda CR-V

1 Answer

Code p1259 when driving loses power engine light comes on but idles ok just does not take the revs


A "P1259" code refers to "Vtec (Variable valve Timing and lift Electronic Control) System malfunction. It sounds like the Vtec filter screens may be clogged. Disconnect the negative battery terminal. (This will prevent electrical current from going where you don't want it and will reset the CEL. The Vtec solenoid valve is located at the right rear corner of the cylinder head. The Vtec valve is held on with 3- 10mm bolts. Also there is an electical connector that you will want to remove first.

When you take off the solenoid valve, check the valve screens to see if they are clogged. Clean off any crud you find on the filter screens. A good quality spray carburator cleaner works well. If the screens are too yuckked-up to clean, just get a new one. While you are in there, you might want to also check to see that the plunger on the solenoid itself moves freely. If it does'nt, replace it too.

After you put everything back together, do an oil and filter change. Use a high quality oil of the viscosity recommended by the car manufacturer.

Good luck and God Bless.

Jul 22, 2010 | 2004 Honda CR-V

1 Answer

I have a Honda 2004 CRV - the repair ( OBD II) code is P2647 - what does that mean?


P2647 VTEC Oil Pressure Switch Circuit High Voltage - With Automatic Transmission Basicallly the sensor has gone bad or an oil passage has become blocked.

**. Locate the Variable Timing Electronic Control (VTEC) pressure switch on the end of the cylinder head. Honda has had problems with the VTEC oil pressure switch, there is an updated part number for the vehicle (37250-PNE-G01). On this vehicle the VTEC oil pressure switch can fail at any RPM.
2. The VTEC oil switch is normally closed, and grounds the reference voltage from the Engine Control Module (ECM) on the Blue/Black (BLU/BLK) wire. If the code sets at idle - 2500 RPM - and the Brown/Yellow wire has a good ground, then suspect a faulty VTEC oil pressure switch.
3. At approximately 2500-4000 RPM and when driving the vehicle, the VTEC system should turn on. To turn on the system, the ECM energizes the VTEC Solenoid valve and it allows oil pressure into the intake valve rocker arms, the oil pressure opens the VTEC oil pressure switch so the Engine Control Module (ECM) can verify that the VTEC did turn on correctly.
4. The code will set at idle to 2500 RPM if the reference voltage is not grounded. The code will set above 2500-4000 RPM if the VTEC oil switch does not open.
5. If the code sets at 2500-4000 RPM or higher, the problem can be a low oil level or pressure, or a malfunction in the VTEC assembly.
Potential Causes: Low Engine Oil
Plugged Oil Passage
Insufficient Oil Pressure
Plugged Oil Screen
Insufficient Oil Volume
Malfunctioning VTEC Oil Pressure Switch
Defective VTEC Solenoid

Jul 13, 2009 | 2004 Honda CR-V

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