Hondata

hey guys.. im brand new to the forum, i didnt know hondata had one
im having a little trouble and i wanted to see if anyone here could help me out.. sorry if its alot to read... :/

My setup is a 97 ek hatch
2004 k20a2 full crower head not sure what stage bought the motor with it, RDX 410 injectors
2006 k20z1 transmission with HR speed convertor.. My second one because the first one fried. No clue why
rbc intake manifold cold air intake
BS replica header with 3" exhaust all the way back..
No o2 sensor


Messed around with a couple maps/calibrations.. Not sure which one I was using but found one that ran the motor nicely.. I had the speed sensor box checked and the o2 disabled and what not.. Got the exhaust done and took the car for a decent ride to check everything was good so I can take the car for a tune no problems...

As I popped vtec a little here and there, Cel came on and lost the speedsensor... (mph dropped to 0)
pulled over, restarted the car Went for another drive

engaged vtec once or twice and then the speedsensor failed again.. This time it didn't come back... No vtec no mph...

Brought car home went to sleep
Next day opened calibration to tried and get my vss back

Have a code for vbu voltage high

Tried to change maps to maybe clear the code..
Not having working map saved for some retarded reason.. I tried like the stock k20a2 and the rsx s with crower stuff

Got the motor to start but now I'm getting 2 codes... The same p0563 vbu high voltage and p0340 cmp no signal...

Vss still not working...
Before the speed sensor problem the car ran amazing for no tune and was perfectly ready to be tuned

But now I have these 2 codes and don't want to bring the car to be tuned with these codes/problems..

i did some research and seen some people said its the main relay and some say its a bad ecu..
i changed the relay and that wasnt it and right now i dont know a rsx or another k car..

and i also ran through the troubleshoot on both codes in the helms manual but it wasnt that easy...
wondering if maybe anyone has had the same problems and remembers their repair.. :/





Thanks alot , Joe

This sounds like a wiring problem. I would contact the manufacturer of the speed sensor converter for assistance with it. If you have inproper wiring (based on the fact one has already died you do) it is possible that you may have damaged the ECU as well.