rough idling


Asked by captahab Jun 28, 2011 at 01:39 PM about the 1986 Porsche 928

Question type: Maintenance & Repair

I hve a 86 928 that has 99981 miles on it has run like a charm for 10 yrs with minor maintanence now all of a sudden its idling erraticly thrusting fron low to high rpms I tried adjusting the knock valve did,nt help i use high octain but because gas prices am using a cheaper gas,but still high octain I,m about install a new fuel filter if that does,nt work next will be a fuel pump,unless some one has a better and cheaper suggestion?

1 Answer

Chris Folsom

Start with the basics: Tune up, compression check, fuel pressure test diagnostic codes

Your Answer

Add photo

Related Questions

Search Porsche 928 Questions

Porsche 928 Experts

#1 MTA1968
Reputation 100
#1 Michael Griffin
Michael Griffin
Reputation 100
#1 Tom Demyan
Tom Demyan
Reputation 100
View All

Related Models For Sale

Used Porsche 911"
141 Great Deals out of 4,275 listings starting at $11,950
Used Porsche 944"
84 listings starting at $9,900
Used Chevrolet Corvette"
221 Great Deals out of 13,258 listings starting at $4,500
Used Mercedes-Benz SL-Class"
113 Great Deals out of 3,111 listings starting at $3,999
Used Porsche 924"
10 listings
Used BMW 3 Series"
987 Great Deals out of 37,629 listings starting at $1,500