NEWBY NEEDS HELP

[YAMAHAR12]

Hi im new on here abd never joined a forum. I need help with my RX8 It was running lovely and i went to start it and it was dead i did a bit of research and i found an article about the engine fuse 15amp which had blown i changed it and it blew again so i removed coil 2 wiring and it has melted the plug which on the engine sideand it stunk of burning. i have stripped it back to where the wires go under the alternator but cant see where they go after that

Please help

[Ainmhidh]

Hi Dave,
I've enabled this account as a full member now - the id you put on the application matched a different forum account.
Put your location in your profile ucp.php?i=ucp_profile&mode=profile_info and someone may be local enough to be able to help directly.
Otherwise, can you give some more details about your car - what mileage is it? Has anything been changed, either by you or a previous owner (any service records)? Are the plugs, coils and leads original or updated? Hopefully someone will be able to offer some more advice.

[GreySilver Beast]

Hi Dave & to the RX-8OC

<<<<<< Please put your Location in your Profile Box, it will help us to know where you are, if required any help in the future

Please check out the EVENTS SECTION's for anything coming up soon in your area

Events Team

[BigPete]

At a guess the coils were cheap ones and created some heat, i might have a 192 engine loom somewhere if you want that, or i can find some replacement plugs for the coils. Tbf you be better off replacing the loom.

[YAMAHAR12]

My car is a blue RX8 with 75000 miles Ive always been a mazda fan so bought 1 month ago replaced engine coils, Leads and plugs. I fitted an aftermarket exhaust and air intake

[YAMAHAR12]

it was blowing fuses when cold aswell. i can`t find where the loom goes after it gone under the alternator got a loom coming in mornin but need to know where they go on engine side do they go to ecu maybe

[350matt]

take a look on the technical section in the members area there you should find a complete electrical manual
I'd provide a link myself but I've let my membership lapse

[warpc0il]

coils, Leads and plugs. I fitted an aftermarket exhaust and air intake

Two very effective ways of destroying or at least crippling your engine.

You might like to sit down with a cup of tea and read this
viewtopic.php?f=6&t=78199

[YAMAHAR12]

i cant seem to be able to post a pic not having a good day at all

[BigPete]

The loom goes from the ecu to all the engine electrics and then off to the gearbox. You will need to remove the following parts for full access. Ecu lid, battery box, airbox, strut brace, upper plastic intake. Put the car on axle stands to be able to get to the gearbox connectors. There an Arse on a 5 speed. Also there’s an earth to the side of the engine just below the spark plugs. Hardest part is disconnecting the injectors

[YAMAHAR12]

It's a bit of a faff to get the loom off in situ - are you changing the whole lot or just splicing in the affected bit?

[YAMAHAR12]

Thanks that is a fantastic help. So from the 3 pin coil connector does it go directly to the ECU unit i have all that removed apart from the gearbox plugs

[YAMAHAR12]

i really not sure am at a bit of a loss at this time cause im not sure wot it earthing out on

[YAMAHAR12]

and still unable to find out how to post a picture

[YAMAHAR12]

viewtopic.php?f=2&t=35968

[YAMAHAR12]

It could be the faulty coils blowing the fuse or just the melted connector that's now shorted.

Splicing a new connector is far easier that replacing the loom.
Just as good if you do it well and less likely to cause more problems.
These work well https://www.ebay.co.uk/itm/50-20x-Solde ... 2919444440

[YAMAHAR12]

I was going to suggest splicing in would be easier, but it sounds like the op has it all but removed already

The Black/White wires for each coil run to a common +12v supply and the Black wires to a common ground, but I don't remember where they all physically join. The remaining trigger wires run separately straight to the PCM through the loom.

[YAMAHAR12]

It could be the faulty coils blowing the fuse or just the melted connector that's now shorted.

Splicing a new connector is far easier that replacing the loom.
Just as good if you do it well and less likely to cause more problems.
These work well https://www.ebay.co.uk/itm/50-20x-Solde ... 2919444440

[YAMAHAR12]

where did you buy the coils?

[warpc0il]

viewtopic.php?f=58&t=51334

[BigPete]

where did you buy the coils?

They're not oem ones

[BigPete]

aye, thats what i was thinking.

[BigPete]

If that's all that's needed then just splice one in will be much easier, i though it might be worse than that, I can post one out tomorrow if you want? Just pm me. Your going to need proper coils tho otherwise it will just happen again

[warpc0il]

The 3rd connector is also looking a bit scorched

[YAMAHAR12]

E-BAY Wonderman tools lesson learned i think. I dont feel comfortable stripping the engine back any further so think i`ll try splicing. new coils are NGK bit i still have the old coils made by VOLT i only changed for my peace of mind. Thanks again everone so helpful on here i really cant believe the suggestions people have come up with to try and help much appreciated.