2003 Chevrolet S10 Q&A
2003 Chevrolet S10 Question: i have code p0304, how to fix it ?
Check for a vaccum leak near # 4 cyl. Check for injector pulse and fuel also. IF you have all that stuff you stated. How much compression did you get (psi) ? - pushrod
sounds like an inj issue or pulse signal at inj. - globalhelper