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vtec not kicking in

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Old Dec 25, 2007 | 07:40 PM
  #11  
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Default Re: vtec not kicking in

there is no check engine light, i do have enough oil i have adjusted my valves twice since i put the cams in. and yes my coolant temp is workin. i guess the only thing i can do is check out the vtec soloniod. and evil don waste my post
Old Dec 25, 2007 | 08:23 PM
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Default Re: vtec not kicking in

to check vtec solenoid. connect a piece of wire to pos. terminal on battery then touch it on the single green wire (Vtec solenoid not the oil pressure sensor.) if it clicks the sol. should be good.

also even though your temp gauge works the ECT plug could be broken or corroded which plugs into your thermostat housing.
Old Dec 25, 2007 | 09:10 PM
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Default Re: vtec not kicking in

Originally Posted by QUICKVIII
Also you can bring the RPMs up in the driveway and use a wire to jump from the positive post on the battery to the vtec solenoid, does the engine engage vtec?
Read the post before questioning something 703
Old Dec 26, 2007 | 03:54 AM
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Default Re: vtec not kicking in

Originally Posted by dorko
honestly i dont think that has anything to do with vtec.

i could be wrong tho.
Okay

VTEC relies on 3-4 primary things in the computer:

First check, is a temperature check. So if it's not warmed up, and this has not been disabled, it won't cut on.

Secondly, it looks at oil pressure. If the oil pressure is not high enough, it will not engage. (Now, many Honda motors are older, never re-built, and converted to LS/VTEC for instance. Or, swapped into a non-VTEC car. No history on the motor is given, and the motor can have an excess of wear. This requires a new oil pump, or slightly thicker viscosity oil to get it to kick in because of the pressure. Or, possibly, the oil pressure sending unit has failed, but that should cut the light on.)

Third, it looks at speed. If you don't have enough RPM it won't kick on. (I'm sure that's been tested in this case!)

Some of them can look at the solenoid itself, and determine whether it should be running VTEC. Self-testing on late model vehicles FTW!

After all of that, assuming everything is right, the solenoid is probably bad...But.... anyways.
Old Dec 26, 2007 | 05:56 AM
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Default Re: vtec not kicking in

Originally Posted by Evil SVT
Maybe your decals are peeling off.
I LOLd
Old Dec 26, 2007 | 07:45 AM
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Default Re: vtec not kicking in

Check the pressure switch close to the VTEC solenoid. It's just a go/no-go switch that tells the ECU if there is sufficient oil pressure to engage VTEC. Grab a factory service manual and start going through the troubleshooting steps for the VTEC system.
Old Dec 26, 2007 | 08:16 AM
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Default Re: vtec not kicking in

Originally Posted by 99crx
vtec not kicking in
oh fuck
Old Dec 26, 2007 | 09:29 AM
  #18  
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Default Re: vtec not kicking in

if all fails try to jump blue wire And green wire together. this will bypass oil pressure .this is what you do for jdm solends.
Old Dec 26, 2007 | 10:01 AM
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Default Re: vtec not kicking in

Originally Posted by Evil SVT
Maybe your decals are peeling off.

You are a stupid fucker, why even bother posting...when you obvioulsy don't know a damn thing.

Originally Posted by NFCstang
I LOLd
Another smart one.

Originally Posted by Fabrik8
Check the pressure switch close to the VTEC solenoid. It's just a go/no-go switch that tells the ECU if there is sufficient oil pressure to engage VTEC. Grab a factory service manual and start going through the troubleshooting steps for the VTEC system.
I am leaning towards this as well. Its usually oil related. (Unless you unhooked some wires doing the cam swap)


This wouldn't matter too much, but did you re-set your valves after installing the cams.


Did it work at all after swapping cams? I have seen people swap out ITR cams that were damaged, after runnning for a bit, metal shavings blocked the screen going into the solenoid. No more VTEC.
Old Dec 26, 2007 | 02:06 PM
  #20  
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Default Re: vtec not kicking in

Originally Posted by Evil SVT
Maybe your decals are peeling off.
DragVa.net is still available, perhaps they'll understand your ignorance there.



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