Power Fc Rattling?

[bygrave316]

Just got power fc installed and tuned.....

noticed when i give it a little bit that the ECU its self is making some sort of rattle vibration noise anyone else had this problem?

What does it mean and what can i do about it?

[paulr33]

the powerfc doesnt bolt into the stock bracket, so it may wobble around a little. it sounds like thats what you are referring to ? try some electrical tape or a cable tie

[bygrave316]

Its a fast vibration sound and only happens when accelerating hard.

[paulr33]

as in, inside the car or external? like engine noise?

it could be detonation. MONITOR, 1 CHANNEL, and select KNOCK

then press UP. then repeat and see what the max knocking value is

[bygrave316]

its inside the car.....

sounds like the actual ecu its self.....

knock was i think 15 at the most when tuned.....

car still runs fine just get this wired noise

[streamer]

Bro,

My PowerFC in my 34 GTR doesnt make any noise but i notice my hand controller makes alot of noise.

Just holding it up and shaking it around will give you sounds like its not put together well and like something is loose on the inside.

If im not mistaken, my PowerFC unit fits snugly..

I took apart the hand commander by the 2 screws behind and it just looks like the board is somewhat loose so i used some blu-tack and i wedged a few pieces around to make everything tight and compact and closed it back up and now its really silent.

Hope it helps!

[paulr33]

maybe a ticking relay? try watching ETC,SENSOR SW / CHECK when you notice the problem, do you see anything going on and off rapidly (block dot flashing)

[bygrave316]

maybe a ticking relay? try watching ETC,SENSOR SW / CHECK when you notice the problem, do you see anything going on and off rapidly (block dot flashing)

ok ill give that a go when i go drive in a min...

if it is that what can i do about it?

[paulr33]

no idea, probably nothing. it could indicate something wrong if its a relay ticking on/off rapidly

[bygrave316]

ok took the car for a drive and did the things u suggested paul.....

know went to 8 at the most and the sensor check didnt seem to do anything strange had some come on and off as i pushed the pedal but nothing flashing rapidly.....

anyone else got any ideas....

Im going to check to see that it is mounted really well shortly does anything in the unit cause it to vibrate if not mouted tight?

[paulr33]

i had mine in the stock braket (not taped down or bolted) for about a year. no rattles, noises or anything

[bygrave316]

checked that it was well mounted and it was......

want to know if i pull the plug out of the ecu will my tune be deleted?

[paulr33]

no, the tune is in nvram.

maybe try opening it up as well

[wilch]

Its a fast vibration sound and only happens when accelerating hard.

Maybe it only sounds like it's coming from the passenger footwell?

Checked your exhaust manifold lately? Still got all the studs holding it on?

[G_Force]

You didnt fit a Apexi boost control kit as well did u? I had mine in just last week n the solenoid valve makes a rattle when it comes on boost, alot louder than i expected. Apparently the Apexi valve is one of the loudest ones around so i was told.

[Kinks]

Its a fast vibration sound and only happens when accelerating hard.

the hamster's struggling to keep up

[bygrave316]

yeah i got the boost control kit as well..... maybe it is when it comes on boost....

ill try unplugging it and putting it back in agian see how that goes

G Force is the rattle really quick and rappid.....?

[R32gts-t]

You didnt fit a Apexi boost control kit as well did u? I had mine in just last week n the solenoid valve makes a rattle when it comes on boost, alot louder than i expected. Apparently the Apexi valve is one of the loudest ones around so i was told.

this will be your problem, i have an avcr and it makes the same noise, farken annoying sounds similar to detonation, which freaks me out sometimes.

Some are louder than others, a good friend has one that's almost twice as loud as mine, next time your car is on the dyno try and get close to the boost controller solenoid, you will here that little tapping noise.

[G_Force]

Yup rattles quick just as it comes on boost, its annoying so u may have to just put up with it. When i first had mine in, i thought it was my turbo wheel hitting the housing, took out the intake pipe, checked the shaft for play n was all good. Took me awhile but i soon realised that it was just the BC valve.

Perhaps a good pair subs will help drown the noise out......

Im trying to overcome the drone from my Blitz catback, now that's loud, even hurts my ears if im in the car for awhile...

yeah i got the boost control kit as well..... maybe it is when it comes on boost....

ill try unplugging it and putting it back in agian see how that goes

G Force is the rattle really quick and rappid.....?

[bygrave316]

ok but this sounds like its coming from the ECU its self to the solenoid

will this sound be passed through the ecu?

and does anyone know if it is fixable in anyway?