Hondata

Is there a base map available to get through a UK MOT test?
CO needs to be down to 0.3, currently at 4.5+

Update.
VTEC now works!
Minimum Throttle was set too high at 40%, turned it down to 5% to test and now it kicks in!

Update.
VTEC now works!
Minimum Throttle was set too high at 40%, turned it down to 5% to test and now it kicks in!

Spunkster wrote: Tue May 30, 2023 11:19 am There is no VSS output from the ECU. VSS is input only form the seed sensor. Nothing on the Hondata side is automatically calibrated.

I've now jumped the cable and ECU now sees VSS input. Can calibrate with % with speed sensor correction.

VTEC wows update.
Stripped back the wiring. Car harness has two small white plugs (Minitec harness).

I've set the hondata s300 VSS to zero and VTEC should rely on tacho to engage VTEC.

There are Two VSS connections on the small white plugs. Pins D & E respectively.

On Hondata SManager I've added ...

ECU tested on another car.
ECU not the issue.
I'd still like to know if anyone else gets a voltage reading from Pin A4.
I'd assume that there should be no voltage unless the vtec is trying to engage.

If there's not supposed to be a voltage I wonder if I have an earth issue?

Hi.
VTEC not engaging.
I've bench tested solenoid and can hear it clicking.
I've tested wiring continuity.
I've got good oil pressure.
ECU has been tested and had a few bits replaced.
I've borrowed a second ECU and same result. No VTEC.
I've tried jumping pin A4 & D6.
I've run out of ideas.

Whilst testing to try and get my VTEC to engage I noticed that Pin A4 of the ECU (VTS - VTEC Solenoid) has a constant 12V reading with a multimeter. However, this isn't a true 12V as it won't light a test bulb. I believe it's called a floating current. (Tested with ignition on)

is this normal?

if ...