how to fit HKS speed limit defencer???

H22powaaa · Post by **H22powaaa** » Mon Jun 03, 2013 5:57 pm

Ive got a bb6 SiR prelude with a limiter on it. It has the P5M ecu and the clocks read up to 120 mph.
Im guessing all they must have done was change the 180 kph dial over to a 120 mph one when it was imported into the uk.

Read into a HKS speed limit defender which should take away the limiter.

Got it now just stuck on how to wire it up.. don't mind paying someone to do it but has to be localish. Or if its easy enough ill try doing it myself..

wires are:

Red wire: IGN Plus. Called "B" in the japanese SLD Manual.

Black wire: Minus. Called "E" in the japanese SLD Manual.

White wire: SLD Speed Input. Connected to the harness, delivers the "real" Speed Signal to your SLD.

Yellow wire: SLD Speed Output. Connects to the ECU side of the harness and delivers the faked Signal to your ECU.

Blue wire: If your Speedometer receives his Signal from the ECU an not from a separate Sensor, you have to CUT this cable and connect the Harness side with the blue wire. It will send the "real and uncorrected" Speed Signal to your Speedometer.

Not sure blue wire needs connecting for definite..

If its a big job then ill have to get a professional, but if it means splicing a few wires near the ecu or behind the clocks or in the engine bay ill give it a go myself and hopefully not faff it up. Any advice would be greatful.

Also I cant seem to find a layout for the harness that plugs into the ecu or the p5m pinout,

again any help would bemuch appreciated.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Mon Jun 03, 2013 6:52 pm

Whereabouts are you (to see if there's anyone local that can help)?

H22powaaa · Post by **H22powaaa** » Mon Jun 03, 2013 7:08 pm

wurlycorner wrote:Whereabouts are you (to see if there's anyone local that can help)?

Bedford mate.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Mon Jun 03, 2013 7:12 pm

I was up that way a few days ago helping Edu out with his ECU wiring!

I would come and help, but I'm going to be absolutely chokka in this last week before I start the new job I'm afraid.

H22powaaa · Post by **H22powaaa** » Mon Jun 03, 2013 7:29 pm

wurlycorner wrote: I was up that way a few days ago helping Edu out with his ECU wiring!
I come and would help, but I'm going to be absolutely chokka in this last week before I start the new job I'm afraid.

Cheers anyway mate.

kris_aka_edu · Post by **kris_aka_edu** » Tue Jun 04, 2013 2:37 am

Bedford! Get In there finally some one local!

H22powaaa · Post by **H22powaaa** » Tue Jun 04, 2013 7:01 pm

kris_aka_edu wrote:Bedford! Get In there finally some one local!

Yes mate and there are probably a few more local to Bedfordshire.

H22powaaa · Post by **H22powaaa** » Tue Jun 04, 2013 7:03 pm

Found a guy who will fit the unit.. Just need wiring diagram for a bb6 obd2a p5m ecu or harness wires.

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Tue Jun 04, 2013 10:58 pm

Should be In the service manual?

http://www.ludegeneration.co.uk/wiki/in ... ce_Manuals

Post by **ddoubledanny** » Tue Jun 04, 2013 11:14 pm

H22powaaa wrote:
kris_aka_edu wrote:Bedford! Get In there finally some one local!
Yes mate and there are probably a few more local to Bedfordshire.

I'm local to Bedford