Gday from Australia! Weekend here, so no shops open to diagnose and i prefer to do it myself anyway.
Just installed a second hand 300x (2005 model #OT999451) and she no workie: Thought i'd get some input as i try to fault find over the weekend.
So, here goes;
Fuel
- low pressure pickup pump works fine, lines bled and fuel confirmed at HP fuel pump
- HP FUEL PUMP NOT WORKING when ignition on and/or cranking - i've jury rigged it and it actually works fine when direct connected to 12v
Electrical
- Motor cranks fine on the key
- Unable to see if spark at plugs as no helper at the moment - i suspect there is, as it did fire for 1sec when i first tried it (i suspect some residual fuel rail)
So, my current thought is it is electrical. Well electrical at least in terms of the HP fuel system ain't turning on, therefore probably other electrical probably the same...
Reviewed the factory wiring diagram last night, and it appears the red/blue is rather fundamental. Will check relay connections today.
It's likely ignition signal wire related (and i have not connect something correctly), but the starter works off the key, so why not the fuel pump?
Any suggestions appreciated as i have 2 days to play around and see if i can solve this puzzle.
First steps will be - bypass kill switch (even though it shouldn't matter as it works), check outputs rear of key (again shouldn't matter as it works).
Is there a single wire that you guys could suggest i've missed engine side? Gut feel is i've missed one ignition connection somewhere under the cowl. But the weirdest thing ever.... it actually kicked at one point (even with no fuel pump running).
Now i think about it, the ignition and starter must be 2 different wires... maybe the key barrel has an intermittent fault... hmmmm
