5tox

Took out my ecu as ill be changing chip soon, what bothers me is that the 2 pins furthest from the white screw top and bottom (i believe pins 18 and 35)
are burnt and its also melted the connector on the loom

What are these pins used for? the diagram i saw says its connected to injector 1 and 4??

is it possible that it was damaged before i took the engine out or have i fooked it in the process... Bloody fool i am i forgot to disconnect the battery when i started pulling wires off

cozmeister

iTrader: (1)

The two furthest from the CO pot are 1 and19 - the ECU's earths. Might suggest there's a corroded earth at the other end that's gone high resistance.

5tox

will it do any harm?

at some point an extra earth has been added to the battery so may have happened previously

Paul_RS

iTrader: (4)

Personally i'd change it.

Stu @ M Developments

iTrader: (12)

IT WILL do massive harm, including potentially destroy your engine, you need it fixing as soon as possible.

5tox

i had better go find somebody who can replace the pins, either that or replace the whole lot (more money grrr!)

Im still a bit stuck as some diagrams ive seen say that they are earth pins yet others say they are connected to injectors

.....confusion?

5tox

someone i know has an ECU scanner thingy that checks for faults, would this tell me if its useable or not until i can get the lot replaced

cozmeister

iTrader: (1)

There, you've been told.


Nope. But an auto electrician might tell you how close to disaster your loom is. You can get kits to replace the ECU connector on ebay for about forty quid (http://cgi.ebay.co.uk/290436338483), or maybe Stu could sell you one. I wouldn't risk driving it until I'd replaced it personally.

Stu @ M Developments

iTrader: (12)

The 2 end ones, nearest the passenger window for want of a better description, are the ECU earths and arguably two of the most important wires on the ECU. They carry the injector current and the ground for the entire management system. When they cant pass current, everything slows down and starts to read wrong. It is very common on L1 and 6, less so on L8, and I have never seen it on P8.

The ECU wont report any faults as it cannot diagnose high resistance on wires, only open circuits and CPS PS timing errors. please just replace the pins.

carlo

iTrader: (4)

Best get another ecu mate or upgrade to L8 all more money tho but better that than ruin your new fresh built engine ! there is a level 6 ecu for sale in parts for sale room

5tox

will take a look mate,

cheers for the info stu, wont be taking any risks as ive just had the thing rebuilt.

will have to look for a new loom and ecu

cozmeister

iTrader: (1)

New pins for the loom connector: http://cgi.ebay.co.uk/290321833191 - can replace them yourself in a few minutes.

If your ECU's also melted, L6's are cheap enough as no bugger wants them - they all want L8s

5tox

nice one dude, got those new pins on the way

managed to source an old cut about 2wd loom off my older brother for a tenner so gonna have the ecu plug off the end and re-do the 2 burnt pins

This will sort out my loom until i have enough to buy a new one, is ryan still doing them on here? any idea of the price?

The ECU itself looks ok, hasnt caused a dry solder joint or anything.. just has melted plastic from the loom plug around the pins BUT im taking no chances and will have the ECU replaced also

CHEERS for the help fellas

cozmeister

iTrader: (1)

Cool beans! If you can, drop a tiny blob of solder on the crimped part to maintain a good connection and keep the moisture out.

As an aside, Stu, is it worth running an earth directly to the battery for the ECU? And when will you have new looms available on the website?

carlo

iTrader: (4)

Stu sells looms mate on his website

JamesH

iTrader: (21)

Replace the pins mate. It will soon be very hard to buy an aftermarket Weber loom

boost mad

iTrader: (8)

It already is James. You cant get the standard ECU connector anymore!

cozmeister

iTrader: (1)

Look at the first ebay link I posted...

boost mad

iTrader: (8)

thats someone carrying stock. tyco dont make them
anymore unless you want to put in a 1000 minimum order i think it is with these.

Ł38 fuck me. i paid Ł23 from polevolt when they had stock. lucky i have it still sitting here. may stick it on ebay and make some money off it lol

JamesH

iTrader: (21)

Exactly mate