The ecu is chipped for dohc vtec, its also hondata ready. I dont have the hondata yet. The car runs great, but vtec dosent engage the cel is for the vtec solinoid. I read through the s200 install, I dont know what the jumper on j1, or the resister on r54 does. How do I make the ecu activate vtec?

 

if your getting a cel for the vtec solenoid then the problem is either in the wiring or the solenoid, not the ecu itself. if it was in the ecu you would be throwing a code 0 (stay on all the time). the fact that it is throwing a cel for vtec tells you it is looking for it, i would double check the wiring to the solenoid, make sure it is plugged in.

btw... j1 is a jumper for the eprom, jumping it will tell the ecu to use the maps from the eprom. r54 regulates the voltage going to the eprom.

 

On the chip the sticker says vtec activaion s200. I know its not the wiring or the solinoid.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Eaglekper0046 &raquo;</TD></TR><TR><TD CLASS="quote"> I know its not the wiring or the solinoid.</TD></TR></TABLE>
how did you determine that?

 

Because vtec works fine with the obd 0 ecu. The obd 1 ecu is hondata ready. Like I said the sticker on the eprom says vtec: s200. I dont know If I can bypass that.

 

It doesn't matter what the chip says. If J1 is connected, the chip is completely bypassed.

Once J1 is disconnected, the ECU reads the chip.

So connect J1 and see if vtec works. If not, the ECU is bad.

 

you got that backwards. j1 jumps the chip. disconnecting it returns the map to the stock settings.