ECU location - ?

[mmatthej1 1]

Feeling a bit daft but I can't find where the ECU is positioned in 1.9 GTI - can anyone guide me, please?

[Rob_the_Sparky 9]

It is on the firewall inside the car.  It has been a while though so I don't remember if it is passenger's or driver's side.

 

Found this with a search:

 

Ecu Location - Topics from 2008 - 205GTIDrivers.com

 

Worth using the search function on here, there are LOT of old posts that contain a lot of answers

Edited July 12, 2022 by Rob_the_Sparky

[mmatthej1 1]

Thank you, I will look for it right now! (I did try search for 'ECU' but, surpisingly, nothing came up !)

 

[petert 554]

It's hidden right up there, under the dash, drivers side. Annoyingly, the mounting plate is retained by one of the dash retaining bolts which go through the firewall.

[Tom Fenton 1,526]

Above your right knee as you sit in the drivers seat.

[pug_ham 241 3 Cars]

Where Tom says, up under the lower dash panel by your right knee as you sit in the drivers seat, you have to lay over the sill with the door open to see it, tachymetric relay is usually by it too.

 

 

 

g

[mmatthej1 1]

Thanks all - actually, my interest in the ECU has waned, as I gather that it plays no part in controlling the ignition spark, lack of which is my current problem !

 

(I will raise that as a separate post/query)

[Anthony 1,000]

On 7/14/2022 at 10:40 AM, mmatthej1 said:

Thanks all - actually, my interest in the ECU has waned, as I gather that it plays no part in controlling the ignition spark, lack of which is my current problem !

 

That depends whether it's Jetronic (1.9 non-CAT) or Motronic (1.9 CAT) - the former is fuel only, the latter controls both fuel and ignition.