Power FC ecu buzzing loudly when IGN off ?? relay ? Help need urgently

**subzero** · 29-06-10, 09:57

Arrived to work today, car driving away fine etc ...

turned off car went into work , came out bout 2 hours later, hear this crazy buzzing from the ECU ... a relay maybe ?/

buzzing only happens when the ign is off, car starts and runs fine ??

disconnected the battery so not to blow the replay or do any more damage ??

any 1 any ideas ... can hear a slight noise from the coil pack closest the bulkhead too ?? this shouldn't be getting power with the ign off right ??

**subzero** · 29-06-10, 09:58

oh ya , its on an s15 .....

reconnected the battery after a few hours and it had stopped, drove the car home , and turned IGN off and off the ECU went again mental

Not sure is it the ECU that is at fault , seems a coilpack may be sparking when the ign is off , what ever the f**k is going on with it

**Mick K** · 29-06-10, 10:12

Coilpack still sparking would be down to ecu if ignition is off no?

**subzero** · 22-08-10, 02:49

bastard clicking was back again yesterday, after going away for a few weeks...

left it clicking away (as in didnt disconnect the battery)

and got to finding out what the noise was from exactly .... wasnt the ECU thankfully ....

but was this brown connector ( relay i take it ) that ive disconnected in this pic

any 1 got any ideas what it does ??

**S14a johno** · 22-08-10, 06:34

relay, but what not working on the car?
like wes there no cover to say what it is johnny

**subzero** · 22-08-10, 07:58

Originally Posted by S14a johno

relay, but what not working on the car?
like wes there no cover to say what it is johnny

no tiz when the car is turned off , it goes mental ... seems to be like its sticking , besides being loud enough there is prob a chance of it going on fire i reckon .

there is a code of some sort on it alright .

**Driftma** · 22-08-10, 13:35

i think that could be your fuel pump relay,but i could be wrong. i have one of those relays here somewhere

**subzero** · 22-08-10, 17:24

Originally Posted by Driftma

i think that could be your fuel pump relay,but i could be wrong. i have one of those relays here somewhere

makes sense , tried to see would the car start without it plugged in and it wouldnt . ill be down sure weds

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