troubleshooting codes P1136 and P0300 indicate misfire, low fuel pressure, vacuum leak, Bank 1 oxygen sensor and engine mech. condition. What first steps are recommended in order to correct problem? I have already replaced oxygen sensor.
I would check coils first
1 out of 1 people think this is helpful.
Find and correct vacuum leak, clear codes and check again.
2 out of 2 people think this is helpful.
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