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987-1 codes
Alansd - 4 months ago
preventing my son from passing emissions codes showing up
; new plugs and coils installed car runs well, but ; P300
p302
p0300P
P0306P
P0305p
p0302P

P0074P
as most are misfire codes, maybe he need to clear them?
If so what are we doing wrong here?
He bought the car from a snakey dealer in North Carolina, who owes him some things still, Like an a/c part.
Were those codes there before replacing the plugs and coil packs?
When the parts were replaced were the codes cleared?

P0074P is the ambient temp sensor
P0300P Multiple cylinder misfire
P0302P Misfire cylinder 2
P0305P Misfire cylinder 5
P0306P Misfire cylinder 6

Clear the codes and drive the car a few miles. If there's a problem the coxed will come back.

Happy Boxstering,
Pedro

Pedro Bonilla
1998 Boxster 986 - 299,000+ miles: [www.PedrosGarage.com]

PCA National Club Racing Scrutineer - PCA National HPDE Instructor - PCA Technical Committee (Boxster/Cayman)



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