Spark plugs: Piece that produces the spark inside of the engine. It turns on the mixture of air and fuel that enters into the cylinders.
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It is made up of an electrode (the tip where the spark burns), a metallic nut, a white ceramic insulator, and a connector the spark plug's wire is connected to. It is tightened around the cylinder head. The engine usually has one spark plug per cylinder.
Distributor, coil, ignition control module have been replaced 3 times by 3 different mechanics computer has been replaced bad ground found causing no signal code but still no spark
I have replaced all 4 O2 sensors and even put the spark plug fouler on the one with issue bank 1 sensor 1. Replaced spark plugs and replaced camshaft sensor however the code p0420 comes back. I thought I cleared it and it didn't come back when I fixed it and cleared it I got back code for camshaft sensor so I replaced it cleared code for camshaft and then code comes back for p0420 stuck don't know what else to do except replace catalytic convertor
Horrible rough idling
No accelartion
Lost of power
Changed spark plugs
Changed coils
Changed intake manifold gaskets
It then stalled while driving on highway
Had it towed home
Any suggestions greatly appreciated
Thanks allen