M35 Dtc Code 1805

[zei20l]

so is this wire that youre all cuting coming directly from the brake switch?

similar to andy's theory, just hook the park brake line directly up to the ECU brake activation so the park brake activates it instead

[spoolin12]

I have driven mine for about 130km and haven't had the light come on yet!

[zei20l]

looks like it might take a few days to come on

[andy65b]

I had driven about 450km before mine came on.

[zei20l]

its possible to drive for several hundred ks before needing the brakes. so 450 i could understand!

[Commsman]

so is this wire that youre all cuting coming directly from the brake switch?

similar to andy's theory, just hook the park brake line directly up to the ECU brake activation so the park brake activates it instead

This would work fine but harder to implement since you now have to find 2 wires & afaik the handbrake doesn't have a connection to the ECU. Also, the handbrake wire is prob an earth but what is the one we cut? It could well be a feed from the brake lights, ie 12V, so one of it's purposes is to let us know when the brake lights are out, not just kill our launching fun .

I think a simple switch to reconnect the circuit is simplest & possibly less problematic in long run. It can be mounted close to ECU (even in glovebox or top cubby near DVD) if you don't want to run wires across to driver's side.

[Jetwreck]

This would work fine but harder to implement since you now have to find 2 wires & afaik the handbrake doesn't have a connection to the ECU. Also, the handbrake wire is prob an earth but what is the one we cut? It could well be a feed from the brake lights, ie 12V, so one of it's purposes is to let us know when the brake lights are out, not just kill our launching fun .

I think a simple switch to reconnect the circuit is simplest & possibly less problematic in long run. It can be mounted close to ECU (even in glovebox or top cubby near DVD) if you don't want to run wires across to driver's side.

+1 on that.....I ran the momentary switch down in the slot below the Cig lighter.

[Sunkist]

did you notice a difference in drivability at all though craig?

assuming mines shown a light i dont think ive noticed any change at all

[Jetwreck]

did you notice a difference in drivability at all though craig?

assuming mines shown a light i dont think ive noticed any change at all

nup....noticed nothing...nothing at all!....could still do a stall and launch at 20PSI bagging all 4's right through 1st!

[Sunkist]

yeh i dont think im gonna bother with a switch..

my AFR's seem fine, i havent noticed any drawbacks over the past few weeks ive had it.

i have noticed the car seems to be pulling alot harder, but thats probably coz i just serviced it.

meh...

whats your stall at?EDIT: actually whats everyones stall at? if they were to sit on the brake and accelerator, what to the revs read(before spinning)

[Jetwreck]

whats your stall at?EDIT: actually whats everyones stall at? if they were to sit on the brake and accelerator, what to the revs read(before spinning)

at 3000rpm I cannot hold it any longer.....I have to let it go....that's at 19-20PSI.......if it's in 2WD I need to let it go a lot earlier!

[ironpaw]

hmm on mine its around 2.5k - 3k as well...

I think...I stomp on the brakes and rev it up and it doesn't seem to want to rev higher than that...

[Sunkist]

yeh mines at around 2500-2700.. my tires wont spin up at stall even at 10 psi.

if its when or really cold we have another story but that might be the brake bias or the pzeros

Jethro, can you confirm and let me know.. i have a feeling all(some) the stall converters are varied now..

[Daleo]

Yep, around 2700-3000rpm, mine is slowly churning both rear tyres and sliding the back end to one side in the lane. LSD FTW!

Let it go; solid chirp and it f**ks the f**k off out of there!

[Sunkist]

Yep, around 2700-3000rpm, mine is slowly churning both rear tyres and sliding the back end to one side in the lane. LSD FTW!

Let it go; solid chirp and it f**ks the f**k off out of there!

do you have four pot fronts?

[ironpaw]

do you have four pot fronts?

Shouldn't make a difference from standstill should it?

[Daleo]

do you have four pot fronts?

In a box under my workbench? Yes. On the car? Not yet.

Too many projects going on ATM, will have to get back to my Big Brake conversion soon. Do have to stand on them fairly hard too, and no wire snipping yet.

I'd certainly like a bit of Jetwreck's turning all 4 in first though...

Edited June 13, 2011 by Daleo

[Sunkist]

Shouldn't make a difference from standstill should it?

yours wont because you have rears..

but the brake bias changes with the four pot fronts(mainly GTR32 conversion)

I think anyway.. im sure cam will come and correct me.

looks like it will make it easier to spin up the rears at stall as you dont have to stand on the brakes as much to hold the front.

[Jetwreck]

Aaron try this.

Stall up in 2WD......when it starts spinning let it go and then flick your attessa back on and it should lock up the fronts launch like a mofo!

I did a couple of back to back tests with a mate the other night on a private road and this was by far the quickest way to launch my car.....sub 5's!

Edited June 13, 2011 by Jetwreck

[Sunkist]

dont have a switch yet.. and surely thats not good for the attessa system right??

and as i said, these tyre will JUST start to slip but wont spin at stall, they're still new and really soft and sticky.. sometimes i wish i had nankangs lol..

i reckon i'll get em spinning once i do the brakes, i wont have to stand on em as much