Hey!

 

I've got RWYB booked at Santapod at the weekend and have just bought a shift light. I was hoping one of you guys have installed one of these before because the instructions don't give me confidence that it will work and I'm going to try installing it one evening this week.

 

Install instructions are here:

 

http://omextechnology.co.uk/OMSLS.pdf

 

It's the 'coil positive' and 'coil negative' I'm concerned about. My plan is to connect the 'coil positive' to a 12v feed and the 'coil negative' to pin 7 on the ECU. Turbo Timer is connected to pin 7 and displays revs (although not matching the rev gauge) so I know that works.

 

Any (helpful :thumbup:) ideas before I call there helpline?

 

Thanks

 

Chris

Reading the instructions it looks like you could also connect the "coil negative" to one of the ECU's ignition coils outputs (1,2,3,11,12 or 13).

 

Here is the circuit diagram for the ECU circuits. I would pass that onto their helpline people and ask them to confirm.

 

ec-12.pdf

Thanks, glad I asked because I'm more unsure now. Will send them an email in the morning with that diagram. :thumbup1:

Response from Omex....

 

"Hi,

 

Pins 11 to 16 of the power transistor unit are the coil negatives. It’s worth checking the coils’ 12v supply before using it as it may turn off with just ignition switch on (engine not running), any switched power supply can be used.

 

Best regards

Guy Higgs

guyh@omextechnology.com

 

Omex Technology Systems Ltd

3 Mackenzie Way

Manor Road

Cheltenham

Gloucestershire GL51 9TX

United Kingdom

Tel: +44 (0) 1242 260656

Fax: +44 (0) 1242 578069

http://www.omextechnology.com"

Final update. On a series 2 PTU, the coil negative pins are E1 thru to E6 and the unit needs to be set to 2 coil pack mode. Set the rev limit to the minimum setting and the light should come on at 2000 rpm then work up from there in 200rpm steps to reach your required shift point.

 

Chris