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Title: Testing Audi ecu on Seat, pin 121? Post by: TijnCU on January 19, 2016, 02:14:11 AM Hi all, I was helping someone out with a Seat Ibiza 1.8t 6K that had a drowned ecu. These ecu's (032AA) are pretty rare and expensive around here so I tried to set up one of my Audi ecus with the 032AA flash. The ecu's are not exactly identical, but if you don't try you'll never know right :-)
It boots just fine on the bench, but in his car it doesnt boot. I could not think of any wiring problems except for the pin 121 not being powered in the car? Don't have the car near so I cant measure the ecu connectors at this time, but if I can help this guy out by adding just power to pin 121 I can give him an ecu for €20 instead of €300+... Title: Re: Testing Audi ecu on Seat, pin 121? Post by: aef on January 19, 2016, 04:02:25 AM If i remember correctly:
There are early me7 cars/ecus without motronic relais. They will never switch on pin 121 which goes to the relais. If the car has a relais but the new ecu doesnt give power out of 121 you simply have to remove the 121 pin from connector and solder it to KL15 (ignition on power) Title: Re: Testing Audi ecu on Seat, pin 121? Post by: TijnCU on January 19, 2016, 06:39:29 AM He is measuring if there is switched 12v on the connector side pin 121 tonight, if it doesnt we'll just add it and test again :-) (good time to clean the connector contacts as well, terrible location for an ECU without a water box...)
** he measured...nothing because pin 121 is not present in the connector loom ;D Might be because the other narrowband ecu's on this car are ME7.1. Dont know. I think I'll run a wire inside of the ecu first to see if it starts up, to keep it plug n play. Title: Re: Testing Audi ecu on Seat, pin 121? Post by: TijnCU on February 13, 2016, 04:54:04 AM To confirm:
I am now successfully running an Audi A4 ME7.5 512kb ecu on a ME7.5 Seat Ibiza 156hp by powering pin 121 through a bridge wire in the ecu. Title: Re: Testing Audi ecu on Seat, pin 121? Post by: eliotroyano on February 14, 2016, 11:43:09 AM To confirm: I am now successfully running an Audi A4 ME7.5 512kb ecu on a ME7.5 Seat Ibiza 156hp by powering pin 121 through a bridge wire in the ecu. ;D ;D ;D Great to know that TijnCU. I had same problem with a ME7.1.1 almost a month ago. Powering pin 121 do the trick... |