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P0300 in need of help badly.

PTGsDaytona500GTP

PTGsDaytona500GTP

New member
Had a misfire on cylinder 4 originally. So i did all the wires spark plugs and the 3 coil packs. Now im getting a p0300 code which is random multiple misfire. I am really low on options here i tried my best to do it without any guidance but i dont know what to do anyone who has some advice woukd be great. And no i didnt mix up the wires. Im going to grab some carb cleaner and see if its a vacuum leak.
Thanks for your time.
 


If you only had a #4 before and now you have a multiple, you either have wires in the wrong locations or something else is off.

What brand of wires did you use?
Where they new?
 
spark plugs not sure (got them from autozone) i know they are pre-gapped and iridium tipped. wires i believe i got bosch wire set. Coilpacks i got bwd. ill double check to make sure they are not mixed up though. my car is stock btw.
 
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