Cabby Wont Start :(

[insomaniac45]

ok, so that wire didnt fix my problem

so, i have been looking through posts and threads, all to do with immobiliser, when i cam accross something Cully said,

The ignition powers the ECU, the ECu powers the fuel relay which powers the fuel pump...

Now being as my ECU failed to respond to PP2000, and my fuel pump is not coming on. Could it be a safe bet my ECU is not recieving power????

I have checked the ignition, and it is working as it should, (Orange wire then leads to CC2 on the diagram) but i cannot figure out which red wore in the bunndle of wires, is CC2 - which is what turns the ecu on.

Any one got any ideas?

My car is looking very sorry for itself atm,

[cully]

when you turn the ignition on is the engine management light coming on?

check the 15amp F9 fuse in the engine bay
check the 5amp F2 in the drivers compartment
check the 30amp F15 in the drivers compartment

check the engine loom plug at the chasis leg N/side

[insomaniac45]

Hi Cully, thanks for the reply

I have checked every fuse, and all are OK across blades.

The smaller plug had a broken wire on the inside of the wing, matched that wire to a pin, then matched the pin to the corresponding wire the other side, but the connections were spotless and all other wires appeared in good shape.

I have what appears to be an engine light come on too.

Thanks fella Tony

[cully]

when you say across blades, have you removed them to test them? as just by testing across the blades while plugged in can give you a false reading

[insomaniac45]

Yeah, did a visual of the blades for defects and tested via multi-meter. Took a while but did it all 1 by 1 lol

[cully]

there is one main earth for the ecu

remove the gearbox earth clean and refit
remove the chassis earth clean and refit (cables under the battery bolted to the chassis leg)

check the earth cable from the battery to gearbox to chassis leg is good not burned or broken

---

there is one main + supply point for the ECU

the tap off is on the Alternator there is 3 wires
1 small wire is the exciter
1large + 1 small is Battery and ecu feed

check the main battery positive as it runs...

battery>starter>Alternator at Alternator the smaller wire connected is the ecu feed this can burn off

---

also check the big fuses in the engine bay box
40Amp + 60amp ones

[insomaniac45]

Wow a few things to check ,

May take me a little while but will get on it today, thanks cully

[insomaniac45]

Ok, wow the engine bay is tight!!!!!!!! Few scraps of the knuckles later..

There looks to be a fairly new earth cable on there, as the mating faces were spotless, this was from battery to gearbox to chassis leg. That is all good.

The ECU supply seemed good at the alternator end, but is there a pin I can test on the ECU plug to test its entire continuity?

Fuses in engine bay box are good. Pulled them all and tested

OK, with a little more digging, i have found that pin 16 of the ECU is the battery feed,
Does any one know which one is 16? or 1 for that matter.

I have 2 rows of pins, so it could be in any one of 4 positions. from there i will be able to test the continuity to the alternator, making sure my ecu is actually getting power

Tony

[puggered]

Note that it's Pin 18 not  Pin 16.

[insomaniac45]

Didn't realise you were here too puggered thanks for the clarification, i may not be able to do much today as taking the family out after school, but I will do as much as I can.


Tony

[cully]

don't know if this is any help

   

[insomaniac45]

Nice job Cully I did see another diagram of that, but it was quite blurry, hence why I thought it was 16 not 18



Well those have helped tons

So, all is good on that front, ECU is getting power, and it has good earths.. So the only thing i can think of now, is that the ECU is not receiving the unlock code from the security box.




But, on another front. The missus has just told me, to start looking for another cabby. I am sad to say, i think her time is up. There are many good parts on her, some i will be keeping, others i will offer up in the for sale section

It has been good while it lasted old girl, but at least she will live on in others..



Thank you all so much for all your help. It truly is appreciated.

Tony.