My VTEC duznt work properly

Hi guys, more probs again...noticed something waznt right the otha day on my s2k. Im not the type who usually goes out and drives the car on the rev limiter all the time but the otha day i decided to give it a good hit on the freeway. Coming onto the freeway i noticed that when i took it past 6k rpm the power delivery felt broken....as if it was cutting out. Ive never had this prob before...power delivery has been really smooth in the vtec range but recently its felt like this....it was ok in 3rd and 4th gear tho i only had the problem in 1st and 2nd.......and ideas. could it be a fuel delivery problem maybe???

number of things.

Not sure about the f20c but for b series Vtec works on oil pressure as well. low oil pressure vtec does not engage.

Temperature-how long were you driving the car before you hammered it? normally wait for 3 bars. ( general rule)

Maybe one of your temp sensors are playing up? As above if one of your temp sensors are karked or just really dirty might not function right.

Doesnt sound like a fuel problem either, i was gona suggest that you put in the wrong fuel but you didnt mention it was pinging/detonating. Also do you experience cut off at any stage in the rev range? like limiter style cut off??

Check the engine oil level, if there isnt enough oil pressure, VTAK wont kick in.

[edit] fly beat me lol

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Originally Posted by EuroDude

Check the engine oil level, if there isnt enough oil pressure, VTAK wont kick in.

[edit] fly beat me lol

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:p :thumbsup:

maybe also try check the ecu .. see if it gives any fault code

i dunno wat it could be..oil preassure is good its duznt fully cut out its really like a shaky power delivery if u know wat i mean.....ill try and post up a vid but its really hard to tell unless your driving the car.

You are using Premium 95RON or 98RON fuel yeh?

The engine will complain if you use normal 91RON unleaded.

ye i got the right fuel.....its really weird.....some 1 at work suggested i check the condition of the spark plugs. They said it might be the cause of the problem

Yeh if there is bad spark, the engine will stutter at high revs.

Check the resistance of the spark plug leads and replace the spark plugs.

Also check for water/oil/degreaser in the spark plug holes.

will do....thanx for the advise guys gotta go do a few checks when i get home.....:thumbsup:

Have you checked your oil level yet?

ye checked it this morning b4 i left for work....oil was ok