Pages: 1 [2]
Author Topic: Ignition: open circuit  (Read 1271 times)
Sandstorm3k
Sr. Member
****

Karma: +7/-7
Offline Offline

Posts: 278


Leon 1M 1.8T AUQ


« Reply #15 on: September 09, 2021, 03:59:54 PM »

I do not have access to Seat wiring diagrams. However looking at the diagrams for my GTi it looks like the ignition coil wiring is part of the body wiring harness and not the removable engine wiring harness. There is also a 14 pin connector by the battery on the GTi. Maybe seat uses this too?? I think a pin to pin overlay is in order.
This is some really good info - we'll get to it. Thanks.
Logged
Sandstorm3k
Sr. Member
****

Karma: +7/-7
Offline Offline

Posts: 278


Leon 1M 1.8T AUQ


« Reply #16 on: September 09, 2021, 04:01:30 PM »

Not really.  There is power from the ecu relay.  But it’s all joined to pin one of the coils.  If there were no power from the ecu relay coil pack 1 and 3 wouldn’t be working either.  On mine it’s violet and black.  If you continuity check between 1 on each coil plug they should all be joined.  Is there a ground wire on the valve cover on yours?  Maybe that’s dirty.
There is, but that's not the issue as the entire engine loom was replaced.
Logged
Geomeo
Full Member
***

Karma: +1/-0
Offline Offline

Posts: 51


« Reply #17 on: September 09, 2021, 04:59:41 PM »

Did you try another ecu? 
Logged
justinvw2646
Full Member
***

Karma: +13/-3
Offline Offline

Posts: 144


« Reply #18 on: September 11, 2021, 10:17:57 AM »

Also check the grounds under the battery tray. Beetles with 1.8t used to set all kinds of weird faults from corrosion on those grounds. ECM disabled intermittently if I remember correctly. Which I know is a seemingly unrelated thing, but if the ECM was being disabled by poor grounds there it stands to reason its possible it could be causing your issue as well.
Logged
Pages: 1 [2]
  Print  
 
Jump to:  

Powered by SMF 1.1.21 | SMF © 2015, Simple Machines Page created in 0.014 seconds with 17 queries. (Pretty URLs adds 0s, 0q)