Electrical issue

[Dwin863]

I have a Gen 2 engine I am installing in a car. I am getting no fuel pump prime, A flashing red light on the instrument cluster and FI in the center readout. The ignition switch is not original, but it is new. Does this 2012 set up use a coded key? I purchased an interface module and the ecu had 2 codes. C 42 and an intake air temp code. I set the airbox on the motor and plugged in the sensor. I double checked my wiring harness and verified the ecm was getting power. I cleared the codes, turned the key on, the codes were gone, but no change. Additionally, I do not have a speed sensor connected, so does the ecm need to see a speed sensor signal? The service manual is a little conflicting in this area from what I can tell. The main wiring diagram shows a speed sensor wire going to the ecm, yet the wiring diagram on page 1A-4 of the manual shows 3 speed sensor wires going the instrument cluster only. Any thoughts would be appreciated.

[Kiwi Rider]

Check the interlock switches, tip over switch, clutch switch, sidestand switch, kill switch etc.
Good luck.
Oh, and welcome along.

[Berlin Germany]

and if not yet done get the gen2 manual from here

[Hayabusa Wannabe]

Welcome @Dwin863!

[kim windsor]

Welcome and enjoy are you building the car for racing ?

[sixpack577]

If you are in the U.S. there are no chipped keys for the gen2, so you can eliminate that as an issue.
Make sure you have a U.S. ecu or that the ecu is flashed to U.S.
If not, the ecu will be flashed to EU, or AU and be looking for a chipped key that is not there.
The gages also must be from a U.S model.
If you're not in the U.S.
then you do need the chipped key, or U.S gages and a U.S. stock or flashed ecu.

[Dwin863]

Yes, the car is for racing. It's a single seat chain drive car that I use for Auto X. Very similar to a DSR. I am in the US and as far as I can tell all components are from the US. I have the ecu flash module but wanted to get as much info as I could before going forward with that. So you need the gauge cluster for the engine to run?

[sixpack577]

Can you make it run without the gages? Yes
But it's easier with them.

[Dwin863]

OK, Does the speed sensor signal wire go straight to the gauge cluster or does it go to the ecu also.

[Dwin863]

I just checked with the place I bought the engine and gauges from and they told me it is all US based stuff

[sixpack577]

@smithabusa
is the man to ask
either PM him here(if he doesn't see the post)
or
www.boostbysmith.com

[ottafish]

As @Kiwi Rider mentioned earlier.
is it the factory loom?
if so are all the sensors he mentions terminated properly?
there’s quite a few that will stop the fuel pump priming if they’re ignored

[Dennis]

When I had that I replaced the ignition switch. Is the switch OEM or Chinese copy?

[smithabusa]

The replacement ignition switches on ebay etc(i just bought a pair of them for my test setups) dont come with a resistor in them. The fuel pump won't prime without a 100-120 ohm resistor being installed in the connector (center 2 pins)

[smithabusa]

I have all kinds of adapter stuff wiring wise to help you get a stock harness in a car without hacking anything, if interested. Hayabusa Car-Kit Install Package

[smithabusa]