Quote:
Originally Posted by rennat_2006
Does your fuel pressure gauge have the bleed port on it?
Hopefully it does, hit the bleeder and see if the engine dies. It shouldnt kill it when you hit the bleeder. P0300 with the description of runability you described id bet $100 that pump has pressure but no volume and it will die instantly when you open the bleeder.
Remove the 1st o2 sensors on each bank(precat 02's) and go drive it, if the power is improved you have clogged cats like mentioned above.
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ok thanks I will try it mine does have the bleeder hose. I did check the pressure with it running but not like you said. also I will check the 02s