Technical Q&A
To search for questions answered before May 7, 2014, visit our Archives
07.25.2020
928 | Electrical
1989 928 S4 85 000 Electrical Salt Lake City Utah Looking for guidance in resolving my loss of gauge info after running out of gas. My working gas gauge falsely indicated 1/4 at the time my engine...
02.13.2020
928 | Other
1989 928 S4 85 000 Other Salt Lake City Utah I recently drained my power steering resevoir to change the two leaking hoses. Needing to refill the system, I am confused by all the different...
04.20.2019
928 | Electrical
1989 928 S4 62 000 Electrical Tucson Arizona I have a issue that shows up after I drive my 1989, 928 S4 on a warm day (65 F +), that after I shut off my car, a code flashes on my dash, TYP04-6, that...
04.25.2017
928 | Engine
1989 928 S4 114 000 Engine Ringwood New Jersey New Jersey My Porche has had a power drop, often when rpm's drop suddenly as in coming down a hill. The idle gets rough and smooth acceleration...
10.02.2014
928 | Fuel System
1989 928 GT 40 400 Fuel System Lantzville British Columbia I believe the minimum safe Octane rating required for the 928 5.0 ltr engines is 95 Octane fuel. I'm wondering if this is true. The...
