Heeeeeelllllllpppppp!!!!

[evo_ray]

The wire may become live if you switch a switch or a sender sends! you need to trace it, what colour is it? does it have a second colour band on it? i will have a look at my wirirng connections to my ecu tomorow if it will help,
Bob

It\'s definately not the immobilisor (im 120% sure of that). The wire is green and for some reason is also connected to a black wire coming out of the 22 pin plug. neither the black or the green wire have any seconday colour but it is a bit dark now (even with a tourch) and my back hurts so I\'ll double check it in the morning.

[D7REU]

The fuses next to the battery seem to be ok. I noticed a wire which seems to have come out of the plugs that go into the back of the Apexi! However, not sure if it does or where it goes if it does.
 
If it should go back in it can only go in either of the two middle plugs. It is green in colour and for some reason looks like it has been connected to a black wire that is in the corner of the 22 pin plug.
 
The small plug only has 5 wires coming out of it. 4 grouped close together on one side and one on its todd in the other corner. COuld this wire have come out of this plug? If so would it affect power to the ecu?

You must have been :Grrr
 
Ok found a PFC pinout for your year FD
 
http://www.rotary-imports.de/space/PFC_install_FC.pdf
 
On page 6
 
According to that, the middle plug which has 5 wires should only have 5 wires, so Don\'t put it in that.
The Black wire from the 22 plug pin should be the 12V Ignition Wire.
The Black/Green wire listed in the diagram is from the 16 pin plug and is for the TPS signal.
All the ground wires are located in the 26 pin plug, so it won\'t be a ground if you say that it can only go in the middle plugs.
Best bet is to print off the diagram and cross reference it with whatever is fitted, and then the one that is missing should co-incide with your green wire...:chat
 
You never know if you get it fixed straight away, you can still get to the Japshow.:driving :chat
 
Let me know how you get on....
 
You would have had less hassle with a Subaru...:p
 
Amir

[Jono FD3]

What year is the car mate as I\'m chainging my ecu for a power FC on my 93 rex, so if yours is between 92 & 95 I\'ll put up a pic of the multy plug when I fit FC if that helps??

[evo_ray]

What year is the car mate as I\'m chainging my ecu for a power FC on my 93 rex, so if yours is between 92 & 95 I\'ll put up a pic of the multy plug when I fit FC if that helps??

Its a 92 FD

[evo_ray]

You must have been :Grrr
 
Ok found a PFC pinout for your year FD
 
http://www.rotary-imports.de/space/PFC_install_FC.pdf
 
On page 6
 
According to that, the middle plug which has 5 wires should only have 5 wires, so Don\'t put it in that.
The Black wire from the 22 plug pin should be the 12V Ignition Wire.
The Black/Green wire listed in the diagram is from the 16 pin plug and is for the TPS signal.
All the ground wires are located in the 26 pin plug, so it won\'t be a ground if you say that it can only go in the middle plugs.
Best bet is to print off the diagram and cross reference it with whatever is fitted, and then the one that is missing should co-incide with your green wire...:chat
 
You never know if you get it fixed straight away, you can still get to the Japshow.:driving :chat
 
Let me know how you get on....
 
You would have had less hassle with a Subaru...:p
 
Amir

I was :Grrr:Grrr:mad::Hammer.  Only just got the car running with controlled boost.  Lucky i was only doing 20mph. If that had happened at greater speeds :2eek.

I\'ll check my wires against that diagram but I can already see that there are some differences.

Think I\'ll go to the Japshow anyway. Talked my mate with an Evo 7 into going so he should be round soon.  Remind me how relaible your subaru is. Where is it at the moment?? :Giggle  Hope you get it sorted soon too.

[evo_ray]

Put a multimeter to the 22 pin plug and checked the two 12V wires. The 12V (1A) gives a reading with ignition on and off but the other 12V (1B - Ignition) gives no reading (0.2V) with ignition on or off!

Do I have to trace this wire??  Any wiring diagrams?

[D7REU]

Put a multimeter to the 22 pin plug and checked the two 12V wires. The 12V (1A) gives a reading with ignition on and off but the other 12V (1B - Ignition) gives no reading (0.2V) with ignition on or off!
 
Do I have to trace this wire?? Any wiring diagrams?

http://www.rx7club.com/showthread.php?t=449950&page=1
 
Wiring diagram is on there. Check page 33 of the PDF has the full four plug ECU pinout with the relevant colour wires that should be in.

[evo_ray]

OK....This is where we\'re at....

1. Checked the Apexi PFC on another FD and it functions no problem
2. Got the multimeter out and checked for the 12V from the plugs. The constant 12V is there but the 12V from the ignition is not there.
3. Checked the earths and they seem to be fine also.

If i run a wire from the ignition and join it to the 12V ignition wire in the back of the plug, this should then power up the ecu.....

The other option is to trace the 12V ignition wire in the loom and find the break and fix it.   I know which option I favour.......any thoughts???

[grinder]

i cant help - but at least you know that you havent killed the apexi

[m4drx]

stop being a sissi and wire it up already! its meant to have 12V thru it so it wont explode
















m4drx is not liable in any way shape or form for any comments stated ever should you have a complaint keep it to yourself.

[evo_ray]

stop being a sissi and wire it up already! its meant to have 12V thru it so it wont explode
















m4drx is not liable in any way shape or form for any comments stated ever should you have a complaint keep it to yourself.

As soon as i posted, I went out and did it but just wanted to hear others views as well.  The Apexi Powers up but the car does not start.  It turned over but did not fire up.

[m4drx]

As soon as i posted, I went out and did it but just wanted to hear others views as well.  The Apexi Powers up but the car does not start.  It turned over but did not fire up.

well then you know what to do! it must be the sensor earth, you may have even pulled the live wire out by accident but the bad earth must have been there, failing that check your main sensors e.g Crank angle as i said last night

:Thumbs-up

[Hayward North]

If you have cranked it without fireing check for flooding as well.

[m4drx]

If you have cranked it without fireing check for flooding as well.

have you done this yet? if you canr remember the procedure bro search on the forum or check stickies but you must rule this one out!