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Discussion Starter #1
Car is misfiring bad, getting the following codes
P0300
P0301
P0302
P0303
P0304

I have replaced the following
Spark plugs (gapped to .28)
Injectors
coil pack
wires
Camshaft Pos sensor
Coolant temp sensor

I have run Seafoam through the intake as directed on the spray can
Added seafoam to the oil and fuel as directed on liquid can

I am about to replace the fuel filter however, ran into an issue with the connectors at the filter and now have to replace those too.
there was flow through the filter as it was not 100% blocked but not sure yet until i replace it fully if it is the cause.

What other things could be wrong? on a side note, i did not replace cam shaft pos sensor, it was performed by someone else, is it possible they knocked the timing off?

Thanks
 
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