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Dylan Walsh
Newbie
QLD
V8

Posts: 3
Reg: 01-2011

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Saturday, October 08, 2011 - 07:06 pm, by:  Dylan Walsh (Dyl) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Gday all,
Ive been searching and searching but havent seemed to come across any answers..

Every time I turn the ignition to "ON" i can hear the EFI kick in, and what i assume to be the fuel pump doing its thing..

This is all okay, but heres where the problem begins.

After i switch off the car (completely, keys out of the ignition) the EFI seems to be still running, it used to run for about 5 seconds but now it is running until the battery dies..

To get it to stop i have to pull the EFI relay.

Ive suspected the relay sticking, and swapped it but the problem still occurs.

I also discovered that if i pull the 30A efi fuse the problem will stop.


I guess i can work with it, just have to remember to pull the fuse every time i get out of the car.. but this is going to get pretty repetitive after a while..

so yeah, any advice/suggestions would help, before i lose my mind completely and burn all the wiring in the car.

cheers
Dylan Walsh
Newbie
QLD
V8

Posts: 4
Reg: 01-2011

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Saturday, October 08, 2011 - 08:58 pm, by:  Dylan Walsh (Dyl) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

okay so ive still been hunting around and discovered someone with the exact problem.. turns out that the main ECU is where the problem lies. this sounds like its going to cost a fair bit. ouch

for interest ill post the thread of a different forum where i read up:

http://www.clublexus.com/forums/sc-400-300/471435-efi-fuse-killing-battery-overnight-2.html

still open to any suggestions
Jason Hall
TryHard
Victoria
SC400 Ltd V8

Posts: 138
Reg: 02-2010

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Sunday, October 09, 2011 - 09:01 am, by:  Jason Hall (Halljps) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

This would be a crappy work around but put a normally open relay in the the line and run it back to the the ign on feed from the key.

When you turn the key on it will close the relay allowing the EFI to run normally and when you turn the key off it would be the same as pulling the fuse but it removes the dependancy on the ecu and will cost about $15 in bits from Jaycar...
Dan McColl
Goo Roo
Victoria (The Nazi State)
Pretty Red Thing and The Black Beast

Posts: 3065
Reg: 07-2005

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Sunday, October 09, 2011 - 10:14 am, by:  Dan McColl (Hoon) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

Get the caps in the ecu changed.

Or get another ecu. Plenty of people wrecking soarer's these days.
Joshua Baldwin
Goo Roo
victoria
1990 ucf11 c+f celsior. 1991 uzz31 toyota soarer 2003 vy sv8 ute

Posts: 1538
Reg: 10-2009

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Sunday, October 09, 2011 - 07:24 pm, by:  Joshua Baldwin (Celsior101) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

seems to be a long line of people wanting v8 ecu's but i've noticed!
James Buchan
Goo Roo
Vic
V8

Posts: 1195
Reg: 10-2008

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Sunday, October 09, 2011 - 07:28 pm, by:  James Buchan (Jrbuch) Quote hilighted text Edit Post Delete Post Print Post   View Post/Check IP (Moderator/Admin Only) Move Post (Moderator/Admin Only)

You're not wrong there Josh. Fair bit of demand for the things.

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