Challenger problems

[magintie]

Default 99 challenger
Hi there have a challenger 1800 I'm pretty sure it's a 99 put key in no beeps engines won't fire but when bridged there sparking and turning over sometime I don't think it's recognising key sometime beeper just staying on also getting one beep also when key was not on post one engine was turning over itself any help much appreciated thanks marc

 

[2x2smoke]

start with good battery, good earths (grounds). Check or bypass neutral switch which might be giving you the single beep fault.

 

[magintie]

start with good battery, good earths (grounds). Check or bypass neutral switch which might be giving you the single beep fault.

Thanks very much I'll try this thank you