Ok so I bought a 2000 gtp last night ran good on the hour and a half drive home went out this morning to start it and it started running really rough so I went to work and when I got back I started it and it was running perfect so I went ahead and put new plugs wires and fuel filter and also added a cold air intake..
Then it started doing it again after driving it for a while so I scanned it and it shows cylinder 3 injector circuit open. And cylinder 3 misfire so could you guys help please
And if I do need a new injector should I buy a whole set of aftermarkets or just buy one new stock one??