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So I drove through monsoon rain storm the other day and my car started misfiring. The codes are P0306 for cylinder 6 and P1820. What is P1820 and will it go away when the misfire code is fixed. Thanks for any help
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Re: Throwing codes
The water and misfires = ignition system. Our cars seem to be somewhat suseptable to that.
Check coils, Ignition Control Module (ICM) and spark plug wires.Now Playing: \'99 Pewter Firebird, stock, bone stock, and nothing but stock, so help me God!<br />Comming attractions: K&N Filter, Lid Mod, Intake Bellows Smooth Pipe Mod.<br />I dream about: Forced Induction (TC or SC) or NOX (or both!) -
Re: Throwing codes
DTC P1820 - Internal mode Switch Circuit A Low.
I have no idea what that concerns
But have no fear, as there are a couple of GM Techs that frequent this forum and hopefully they can shed some light on the subject.Now Playing: \'99 Pewter Firebird, stock, bone stock, and nothing but stock, so help me God!<br />Comming attractions: K&N Filter, Lid Mod, Intake Bellows Smooth Pipe Mod.<br />I dream about: Forced Induction (TC or SC) or NOX (or both!)Comment
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