Hachi wont start.. anyone have a Grenade?

[Ivan141]

Yep.. but dont take my word for it...go out there and have a look!

[Mulisha]

Well I coulnt find the relay, maybe I am just looking in the wrong place.
But I changed that giant fuse, and still nothing. I also swapped out the ignitor coil with a friend of mines and it still didnt work, also the coil didnt work in his car either. So what ever happened it killed my coil and other things. I am going to swap out the ECU tomorrow.

[Mulisha]

So I swapped out the ECU.... still nothing. I ohm'ed the ciruit open relay and everything checks out fine.
I pulled off the cold start fuel line and started the car... no fuel came out.
So I checked the voltage to the fuel pump and it's only getting 1.2v. Is this correct?

[EE80Liftback]

I don't have a hachi but the exclaimation point warning light usually is a warning light for 3 things, all todo with braking:

- Parking brake applied
- To little brake fluid in the resevoir
- Difference in pressure between the two hydraulic brake circuits

[Ivan141]

Your pump should be getting 12V. If your battery is okay, then I would still suspect the circuit opening relay or the wiring to/from it. Relays can work poorly sometimes, they still switch but contact can be bad. You can try jumpering the fuelpump supply directly to the battery (lay a fat wire from the connector at the relay to the battery. If that works out you will at least be sure that the pump and wiring to it are alright. Then you can check the voltage that the input side of the relay is getting. If it's too low it will also switch poorly. If all that is okay, I suggest you find another relay.

[Mulisha]

I replaced the circuit open relay and also replaced the fuel pump. Still nothing. Also I tried a new ECU.. Still the same thing. Am I missing another relay in the circuit or something-

[Ivan141]

Okay, lets take this step by step then...

You say your fuel pump is not getting enough juice. It is directly switched by the circuit opening relay through the light blue wire. Disconnect this wire from the circuit opening relay and get cranking. If the output from the terminal you removed the wire from reads 12v on your multimeter then the problem must lie in the lightblue wire.

Do remember that the fuel pump is only activated while the starter motor is turning. Remove the switch wire to the starter if you wish to test without wearing your battery down.If you dont get 12volts at the output terminal of the circuit opening relay we move on to the next bit.

The circuit opening relay gets it's power from the EFI main relay (in the engine compartment I suspect). The wire between the efi main and circuit opening relay should be red-blue. Disconnect this wire from the circuit opening relay and see if there is 12 volts there (switched by ignition, so no need to turn starter on).
If there isnt then we focus on the EFI main relay.
This relay is switched on by the ignition through the IGN fuse.
It's connected to permanent 12v through the EFI fuse with a white wire. Check the voltage. If there isnt 12v on the white wire to the EFI main relay then your main fuse is shot, if there is then the EFI relay is either faulty or not being activated. Reasons for the latter could be either a blown IGN fuse/wiring or a problem in your key cilinder.

And that's all she wrote....now I need my rest.

[Denmark]

I have had a problem like that, and it was the plug, were the wires are connected, right over the tank, In the trunk,
There is a plug for the fuelpump,and a plug for the licenseplate lights.

If you havend checked, it might be worth a shot!.


/Skassa

[Mulisha]

Ivan: Ill try all that tomorrow.
Denmark: Ill give that a shot too.

[adomz]

the same thing with the exclamination sign was occured some daus ago in my car...it was just the brake fluid that was lower than MINimum...i refilled it, and it's now pretty ok'ish!

adam

P.S.

or it can also be that your handbrake sensor is stuck... :wink: