ben_edwards30

Just swapped ecu's over on my car 93wrx and it wouldn't start, so swapped ecu's back still won't start, checked all wires to the ecu plugs none are really loose or broken. When you turn the ignition on you can hear alot of clicking from either under the dash or under the bonnet (drivers side). Tried another coil pack just to check i'm getting spark and i'm NOT getting a spark at all, but i can't understand what i've done to stop a spark or it starting???

If someone has an idea please say because i can't be doing with a big bill from the garage.

ben_edwards30

i've got fuel my the way coz car stinks of it when it's turning over just no hint of it even firing.

ben_edwards30

can't read a fault code with my standard 2c ecu as all the relays go mad when i plug it in but when i plug in my freinds sti ecu it get fault code 13 and the relays don't go mad either????? Please help.

dan83590

Main Heading Goes Here <----- Clicky here.

Any help to you?

dan83590

All the relays etc SHOULD go through their own diagnotic check.

ben_edwards30

I've got fault code 13 which is cam sensor, where is it located on the car can you clean it up?

dan83590

I've just searched for 'Cam Sensor'.. (search this forum)

Loads comes up, try that.

ben_edwards30

I 've just been outside and cleaned the cam and crank sensors gonna eat my tea while the ecu resets itself then try again. Cheers for the help.

Jam Performance

iTrader: (3)

are u using the correct ecu mate?the only ecu's that will work in ur car is U8, W6 or Z4

ben_edwards30

the ecu that came in the car is a 2c? but i've been running round with an sti one for 2 days while my 2c one was being chipped. Now that i've got my chipped one back and we went to swap them over it won't start with either.

dan83590

Ah, if its been chipped check if the chip is seated properly.

ben_edwards30

Oh and cleaning the sensors made no difference still won't fire, when you wind it over you can hear a relay click not fast just every maybe 4 seconds? There is also another light on the dash when i'm winding it over like a plug with heat coming of it????

ben_edwards30

both ecu's are chipped and both chips are ok, i've even taken the chip out of my standard ecu and joined the resistor back together still no joy?????

dan83590

My suggestion would be to double check the codes with your intended ECU and go from there.

ben_edwards30

it won't read faults with my ecu as it just makes all the relays go bad everytime a relay clicks the engine light flashes with it?

girl-in-a-scoob

whee you based?

ben_edwards30

in oswestry, shropshire

girl-in-a-scoob

oh dear, got someone miles from you. Does anybody know anybody decent to help now we know where you are

dan83590

Its got to be a fault with the ECU installtion surely, as the car was fine before?

ben_edwards30

i thought that maybe had pulled one of the wires out of a plug when swapping over the ecu's. Is there anyway of testing each wire???

ben_edwards30

Anybody???

silent running

YOu've not got the diagnostic plugs still connected under the dash have you?

ben_edwards30

No mate checked that already, has any1 got a diagram for the ecu plugs, showing what each one does?

ben_edwards30

I'm not getting a spark what are the best things to check?

myblackwrx

iTrader: (1)

www.polarperformance has ecu pin diagrams in the FAQ section.

ben_edwards30

it's ok i've found the problem now, both ecu's were at fault i've tried two different ecus now and the car starts first time. thanks for the help.