Seat CUPRA 290 fuel delivery issue

Mar 26, 2025
3
0
My Cupra 290 has an intermittent fault up. Originally I had an EPC fault up which wouldn’t let me start the car. A few minutes later it was fine. Since then my car has been fine with the odd time it not starting and misfiring. I called AA out and they said I was getting a fuel delivery fault up and also rail pressure too low fault. Has anyone had this issue before or know what the issue is as Seat themselves don’t even know what’s wrong with it.

thank you.
 
Mar 24, 2025
48
15
Best bet is to try monitor the car while its driving with an obd or laptop or wen it has the issue and wont start plug it in see what the injectors and fuel pump are doin can u hear the pump when you put the ignition on
 
Mar 24, 2025
48
15
Check ur hpfp for any damage on the sensor any cracks or anything i reckon thats ur issue hpfp is high pressure fuel pump
 
Mar 24, 2025
48
15
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Mar 24, 2025
48
15
So much as damge that sensor on top of it ull get ur symptoms ther like chocolate stay well away from them if ur workin on the engine i broke mine pushin my engine cover on glued it back together was fine while it was brike was miss firing epc light on aswell
 
Lecatona HPFP (High-pressure Fuel Pump Upgrades)