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Old 13 Apr 2010, 10:16 am
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Join Date: Apr 2010
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Default vtec stopped working.?

i ounno why but vtec was working fine in my b17 gsr and then it stopped kicking in... now when vtec usually is about to crack at like 5k rpm the check engine light comes on instead of vtec cracking. It still goes over 5 rpm but vtec doesnt crack and i ounno why. Im thinking it might be the vtec solenoid but im not too sure.. i have oil in the car so it can't be that... whatelse could it be?

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Old 13 Apr 2010, 10:31 am
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Join Date: Oct 2007
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I'd definitely put money on the VTEC solenoid being bad. You're probably getting the check engine light because the computer expects the VTEC to be engaged when it isn't and your O2 sensor is probably getting bad readings because of it.
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Old 13 Apr 2010, 10:46 am
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Join Date: Sep 2009
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Check the Vtec Solenoid. From my experience, there is a gasket that acts as a strainer, low oil pressure may be causing it not to engage. Also you might need to scan the car since your check engine light comes on. Check the the VTEC seal as well.
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Old 13 Apr 2010, 11:01 am
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Join Date: Jun 2008
Posts: 579

why dont you just check that engine light

hook up a paper clip to the scs line (passenger under dash side) two holes

and see how many light the ecu light flashes and you will find your answer
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