engine light
 

my 97 boxster ran great for 6 weeks it now back fires; codes say too much air ,changed fuel filter my ? is do the codes tell you whats wrong or do they only point you in the general direction my mechanic seem unsure of how to proceed , any help or ideas would be of helpSmileWavy

The code either gives a specific cause or a list of causes. This is followed by a flow chart diagram saying look at this first, this second etc. Then there are expected values and tools needed for specific tests descriptions. Does your mechanic have a book like that (DME diagnostic manual) from Porsche? A PST2 or PIWIS test computer?

Can he at least give you the 4 digit P-code? Post it and we'll give you possibilities or even better search for that code using the forum's search capability. Not likely it is a new one and some one has probably already posted their solution.

thanks Mike
 

Monday I'll check with my mechanic for the codes;) great input let you know how it goes!