Speedo, VAFC and engine light

[Toe_knee]

hey guys hope u guys can help me. I drive a 94 accord VTI. Just this morning was driving and couldn't feel the vtec kick in at 3.5 rev as it was tunned like that. Then look at the display screen on the VAFC to see that it wasn't turning on, also the speedo wasn't working and the engine light was on all the time.

Has anyone else had this problem, any help would be appreciated.

Cheers

[CB7_OWNER]

This probably doesnt help, but if you run a VAFC on a stock f22b, its probably causing the problems you have now and future ones too. having vtec kick in @ 3.5 is unnecessary, unless your engine is worked or boosted

[FAT VTI]

agreed with cb7 owner, its probably ****ed your engine mate,
there is a reason why honda make vtec kick in at a precise time, so leave it that way.
Unless ur going to do some work ,then it shouldn't be changed.

If this isn't ur problem, it's probably your vechile speed sensor, very common on cd5's.