Why do you have to jump it? You need to be sure the battery has a full charge and the connections are clean and tight. Use a digital multimeter across battery posts, everything off, the generic spec for a full charge is 12.6 volts. If the battery doesn't have a good charge, you can't test anything.
The tune-up may have an effect on the trouble codes, tune-up first. You do have spider fuel system, you need to check fuel pressure again, 60--66 psi, key on engine off. Once fuel pump stops, the pressure shouldn't drop more than 5 psi in 10 minutes.
Tuesday, June 28th, 2011 AT 3:16 PM