frog169

does the speedomitor mess with the vtec? yesterday my speeddom stoped working so im crawling under the car tomarrow to see if the cable snaped off but i noticed the Vtec isnt kicking in. anyone know if the speeddom mess's with vtec?

ke98248

iTrader: (1)

Sorry to hear that, but if you have a SOHC engine, you shouldn't hear the VTEC kicking in ever...

SomedaySoon

I don't if you have a DOHC or SOHC or what my DOHC speedo went out and vtec dropped off and then a few days later all my power was draining. Turned out after all sorts of work and changing an alternator it was the Speedo/Alternator Fuse just my 2 cents

frog169

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SomedaySoon &raquo;</TD></TR><TR><TD CLASS="quote">I don't if you have a DOHC or SOHC or what my DOHC speedo went out and vtec dropped off and then a few days later all my power was draining. Turned out after all sorts of work and changing an alternator it was the Speedo/Alternator Fuse just my 2 cents</TD></TR></TABLE>

ya maybe i should check that first :X

and ke98248 u can hear vtec kick in from the aftermarket exaust and what not

tietze

Yes, I am pretty sure that the ECU needs to see the vehicle speed sensor, VSS, in order for the vtec to work properly. Fix the speedometer problem, reset the ECU and then try it.

Dont you get a check engine light?

frog169

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tietze &raquo;</TD></TR><TR><TD CLASS="quote">Yes, I am pretty sure that the ECU needs to see the vehicle speed sensor, VSS, in order for the vtec to work properly. Fix the speedometer problem, reset the ECU and then try it.

Dont you get a check engine light?</TD></TR></TABLE>

i have to replace the TPS sensor so the check eng light is on till i fix it. :-/ by chance u know what possible fuse # it might be for the gauges?

95dsol

to the gy who said if u have a single cam u wont hear v-tec lol ... yeah u most certainly will might not be a distinct as a dohc motor but ucan deffinitly hear it

SomedaySoon

Not sure if you got the problem fixed yet or not and also not knowing what model and what not I'd suggest looking at your fuse panel cover or if it is missing looking on the net for a Fuse Panel Diagram for your particular car, I have one for a 99 Honda Civic Si if that's any help but other than that good luck.


Peace!


-Rafe

ARMED

my speedometer doesnt work...my vtec still works fine

spork motorsports

varible valve timing uses the rev, speed, oil pressure, oil level and i belive engine temp to wheather advance or not

AntiochOG

I believe if your vss quits working it will throw a code, and your vtec won't engage with a cel.

tampajason

I don't believe speedo has anything to do w/ VTEC engagement, however RPM does (depending on how ECU is programmed). Check your oil pressure first of all.