Club G40 Forum

Technical => Electrical => Topic started by: Robin on December 14, 2008, 02:20:42 pm

Title: Just to be sure
Post by: Robin on December 14, 2008, 02:20:42 pm

Does the chip sit in this orientation or the opposite way with the grey line nearer the edge of the ECU?

(http://i19.photobucket.com/albums/b155/robinyau/chip1.jpg)

Title: Re: Just to be sure
Post by: PeteG40 on December 14, 2008, 04:44:08 pm

well i think they only work one way round anyway

Title: Re: Just to be sure
Post by: juan on December 14, 2008, 05:05:19 pm

you see on the chip there is a little u shaped indentation on one end that should line up with a small u shaped indentation on the chip holder (this is the general rule in electronics).

although im not sure when it comes to g40 ecu's, can't do any harm to check though :)

Title: Re: Just to be sure
Post by: Nick_S on December 14, 2008, 07:59:33 pm

Think the notch goes towards the edge iirc.

Title: Re: Just to be sure
Post by: Robin on December 14, 2008, 08:14:46 pm

thanks for the input guys

i changed the chip today for a more 'tweaked' one and now the fuel pump won't prime, changed the chip back to the original one and still doesn't work, tried the chip sat in both ways but didn't work so i am guessing i may have killed the ECU.

oh cock.

Title: Re: Just to be sure
Post by: PeteG40 on December 14, 2008, 08:18:45 pm

hmm dknight once had a fuel pump that would only prime when you bridged the relay... was a simple transistor...

Title: Re: Just to be sure
Post by: Robin on December 14, 2008, 08:22:41 pm

transistor in the ECU pete?

Title: Re: Just to be sure
Post by: PeteG40 on December 14, 2008, 08:24:36 pm

yeah, someone else had suffered it - it was pence, bet he can't remember which one it was tho!!!!

tried other relays mate?

Title: Re: Just to be sure
Post by: Robin on December 14, 2008, 08:29:31 pm

yeah i tried another relay but Yoof said the relay might not be a working one, the next plan of action is to take the ECU to Yoof's and try it on his Polo and see if it works or not, if not then a G40 ECU will be on the xmas pressie list!

Title: Re: Just to be sure
Post by: PeteG40 on December 14, 2008, 09:08:08 pm

may be repairable you know! but yeah rule ecu out first.

Title: Re: Just to be sure
Post by: Andy on December 14, 2008, 10:06:37 pm

If it's dead Robin give it to Yoof and I'll have a look at it. If it's just the fuel pump drive transistor it's easily fixed.

Title: Re: Just to be sure
Post by: Robin on December 14, 2008, 10:15:29 pm

cheers Andy that would be brilliant!

Title: Re: Just to be sure
Post by: Robin on December 17, 2008, 09:18:46 am

Found the problem, looks like i have killed the ECU chips, put in another chip which i got for aquamist set up and the car starts fine and runs fine.