Replaced both High Pressure Fuel Pumps after P1025 code in December. Adaptions and codes cleared. Now, Check engine light coming on again with same code. I/M ready. Onboard monitoring are all pass. No noticeable change in performance. Any ideas?
What makes this problem better or worse?
take relay out and in makes the time between check engine lights longer.
How long has your 2015 Porsche Macan had this problem?
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Hi, perhaps someone with more Porsche / VW experience can weigh in, but I'll say that it sounds like some professional assistance is needed. This is because most work on these cars requires proprietary diagnostic tools and reprogramming capabilities that may be essential to make final repairs possible. I'd reach out to an experienced shop near you.
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