Question about 2000 Honda Passport

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I have a honda crv i-vtec suv 2002 2l petrol showing code 172 , have changed the front lamda censor and the engine temp censor and car still shows code 172 and also another saying misfiring on 1,2,3 and 4. cleared codes but still comes back on. have had it checked on diagnostics no one can find the problem. recently change timing chain, guides and tensioner. car starts first time runs well at speed cuts out on idle andis using lots of fuel and sound rough. can any body help. many thanks frustrated honda owner.

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

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

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SOURCE: 1998 honda crv misfire code 0303and 0304

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Posted on Nov 15, 2008

cooper0365
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SOURCE: Honda Accord V6 1995 auto trans. 1 - engine

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Posted on Oct 09, 2009

SOURCE: 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

Posted on Nov 27, 2012

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If the code is back that problem that the PCM detected is still ongoing. Please watch the Youtube video at the link.

Honda CRV Code P1457 Honda CRV EVAP Solenoid

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Heavy on petrol


new cars have expensive parts.
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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

2 Answers

Have a 2004 CRV hesitates or jumps on excelleration code 2647 is what it reads. I have already changed the oil pressure switch but it is still doing the same thing. Any help would be appreciated.


P2647 VTEC oil pressure switch circuit high. The letter P stands for power train.When a code P2647 comes in the shop VTEC oil pressure switch usually fixes the problem. In front of the vehicle on the right hand side there is a VTEC solenoid valve one one the intake.Right next to it is the VTEC oil pressure switch . Both have grey connections. If you complain about rough idle then yes service solenoid (they do plug up from low end oil or lack of oil maintance).The code is circuit.that means that battery voltage has to be present. When the code P2647 appears VTC is disabled and valve timing is fixed at a fully ****** position.This is where you say you feel like its running out of gas is from.Switch is you just replaced it, a electrical diag has to be performed.From switch to PCM

Feb 29, 2012 | 2004 Honda CR-V

1 Answer

I have a 2005 honda civic si recently my check engine light came on showing the following codes they are P1259 and P1166


P1259 is a code for vtec malfunction usually cause by a bad vtec solenoid, vtec pressure sensor, low oil level, bad connection. Was oil change done? May want to check the oil level. P1166 is a code for a primary o2 sensor 1.

Sep 25, 2009 | 1998 Honda Accord

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

1 Answer

Vtec wont work


More than likely its your temp sensor on the front of the engine, Ive seen it be the cause of things similar including high idle when car first starts(happened to me when I switched out my 1.5 for 1.6 sohc vtec engine, engine was built as an automatic so i changed out the flywheel etc but no place for the sensor) and happens to be the sensor for my radiator at the same time so it controls the fan.

Apr 06, 2009 | 1995 Honda Civic

1 Answer

2001 Honda Civic 1.7 L VTEC Engine. The VTEC does not work


dealer only diagnostics,this vehicle uses encrypted software and evan if you get it too read it will show the wrong codes for the faults.

Feb 18, 2009 | 2001 Honda Civic

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