Horseofcourse

Anybody ever experienced this problem? I cant solve it. Some days its spot on. and other days its like vtec will crossover at 2grand, 2step will be a 5 and rev limiter at 6 just random numbers whenever it wants to.

And I have tried 2 different Phearable ECU's and i have a third on the way.

Thanks Again.

vietnamezerice

never seen anything like this... let us know how the third one goes

Horseofcourse

anybody?

Horseofcourse

up

Jayman_Gsr

I would say try re burning the chip or a new chip but IDK GL

Horseofcourse

Phearable Swears and assures me that its my problem not theres. So im trying to see if anybody has seen anything like this before?

ac_attak

2step? Sounds like something a dancer would do..

poppypizza

he posted for my car,, so the 3rd ecu got here and when it is warming up it runs fine but then vtec crossover gets lower and lower 2 step 2500 when its set for 3800,, it was bouncing on 3500 when it wasnt all the way warm, warms up 2 step lowers vtec lowers rev limiter like 5k anyone at all?

slaminsam

Never heard of this problem.. Have you thought about maybe swapping out a dizzy with a known good one?

Sean5826

check the voltage in your wires coming from the dizzy and any ones going into the ecu that may affect vtec crossover, rev launch, etc, it very well could be a problem with your wiring harness (frayed wire somewhere, short out, etc.) i dont know what your situation is but plug in your stock ecu and see what happens, that should clear up alot of the possibilities/questions

poppypizza

what wire in particle? what plug on the ecu side should i be checking for voltage?

poppypizza

anyone?? cause vtec engages at 2k and 2 step is 1.8k.

Sean5826

there should be 3 wires for vtec, i cant recall the wires exactly but black is ground, or atleast it was on my vtec subharness i got from rywire

look up and ecu pinout for whatever ecu you have and it should say what every wire is then check every one you think might have something to do with it, i would start there

poppypizza

so i was driving today listening to the motor and vtec was engaged at 2k on my tach..... but the motor was well above that. so i think its something with it reading on the tach. It climbs really slow (ls-vtec). anyone ever have any problems like this? whatever reads my rpms im guessing is my problem, somewhere in the dizzy? does anyone know where to start?