Canberra AE86 / Motec assistance

[cswan]

G'day all,

Is anyone in Canberra around to help me trouble-shoot the Motec in my AE86?

It is not firing the fuel pump and is giving me the .... well, it's not starting.

It's a very very long story, which includes an HKS Supercharger kit, bypass valve, water-methanol injection.... etc.... Details http://ae86sprinter.blogspot.com.au/2014/07/engine-setup-4age-with-hks-supercharger.html

(http://ae86sprinter.blogspot.com.au/2014/07/engine-setup-4age-with-hks-supercharger.html)I have taken the loom out and checked everything, but just can't work it out. I'm am an Arts Graduate, not an electrical engineer.

Whoever helps getting the thing running gets a go in it at Wakefield at the first opportunity. Seriously.

Thanks,
Chris

[Matt]

so you have spark and injector pulse just no fuel pump?

[Big T]

I recall motec having inbuilt COR. How is the pump wired up?


Sent from my iPhone using Tapatalk

[cswan]

Yep.

[cswan]

Good question.
The fuel pump relay activated by Aux 4 from the Motec. The Motec primes the pump for about 3 seconds when the ignition is turned on.

[Slimer86]

What model motec?
Aux 4 should be connected to pin 85 on the relay (triggered earth)
Pin 87 fused 20a then Fuel pump output
Pin 86 fused 20a feed 12+
Pin 30 12+ input from battery (fused)
http://uploads.tapatalk-cdn.com/20160308/ddbd7221a78526cc3f8ef69b6de581fe.jpg

Try fuel pump test in the software. It is under
Diagnostics / auxillary outputs
Test injectors (without fuel pump power connected)
Test fuel pump aux 4.

Good question.
The fuel pump relay activated by Aux 4 from the Motec. The Motec primes the pump for about 3 seconds when the ignition is turned on.

[Slimer86]

What model motec?
Aux 4 should be connected to pin 85 on the relay (triggered earth)
Pin 87 fused 20a then Fuel pump output
Pin 86 fused 20a feed 12+
Pin 30 12+ input from battery (fused)
http://uploads.tapatalk-cdn.com/20160308/ddbd7221a78526cc3f8ef69b6de581fe.jpg

Try fuel pump test in the software. It is under
Diagnostics / auxillary outputs
Test injectors (without fuel pump power connected)
Test fuel pump aux 4.
http://uploads.tapatalk-cdn.com/20160308/6dd6e6c1a4cc1eb112822e15bd37f23c.jpg


What model motec?
Aux 4 should be connected to pin 85 on the relay (triggered earth)
Pin 87 fused 20a then Fuel pump output
Pin 86 fused 20a feed 12+
Pin 30 12+ input from battery (fused)
http://uploads.tapatalk-cdn.com/20160308/ddbd7221a78526cc3f8ef69b6de581fe.jpg

Try fuel pump test in the software. It is under
Diagnostics / auxillary outputs
Test injectors (without fuel pump power connected)
Test fuel pump aux 4.

[Slimer86]

http://uploads.tapatalk-cdn.com/20160308/cd5bc3ecb129708c5e8627b98314f3a0.jpg

[Slimer86]

http://uploads.tapatalk-cdn.com/20160308/1e444a23324ba1093c85454fa09c4c8e.jpg

[Slimer86]

Information extracted from MoTeC M48 manual

[cswan]

Information extracted from MoTeC M48 manual

Thanks very much for the info and your suggestion. I will give it a crack.:)

[Slimer86]

Not a problem, lots of MoTEc information on their site plus webinars on YouTube.