I own a 2001 integra gsr that has a b18c1 and gsr 5 speed. Vtec stopped hitting and I have no clue why. Can anyone help me with this?

 

Yes. There's only ONE thing that makes VTEC not work, so this question is possible to answer. [/sarcasm]

Is there a check engine light on? What makes you think VTEC doesn't work? What RPM are you looking for VTEC? VTEC is at 4400RPM and you likely wont hear or feel it on a stock GSR.


Is the car warmed up when you try this? Does the speedo work? Is there enough oil in the engine?
If you're looking for VTEC at 5700RPM, that's the butterflies....not VTEC. Your diaphragm vacuum line may be unplugged.

 

No it always hit at 4400, has oil, check engine light has been on for o2 sensor so I don't know if it's throwing any other codes I'll check on that. It's just not hitting at all.

 

And before you felt it and heard it. It has basic bolt ons like exhaust, intake, intake manifold, and throttle body. It use to hit hard now it's nothing

 

Also the speedo works. What vacuum line would you be talking about? I'll check that out.

 

Iv had the car for over a year and a half so I know when vtec kicked in and how it felt. Not kicking in at all now

 

Get the CEL codes and go from there. There are 65,000,000 reasons (almost one for each year the dinosaurs have been dead) that VTEC won't kick in, y0.