The first thing we need to check is for spark and fuel ,we need these 2 to start and stay running?
check for vacuum leaks,smoke test or spray starting fluid at idle when running does engine rpm surges up when you
any security light flashing on dahs?
the ckp, crank shaft position sensor is most common if u missing spark
in case it lost sync with security system ,try below procedure
do you have a capable scanner to retrieve fault codes
I do not believe the headlight issue is related ,the hood switch will be related if the secuorty is triggerd on
1- Disconnect Battery Cables ( Negative & Positive Cables )you can use any electrical wire as an extension if battery cables don't reach .
do not worry no spark will happen since we took power source out of the loop by taking both cables off, by touching them we are taking all residual power off the modules to reset them as if we using factory scanner .
2- Hold cables Together for 60 secs ,then let go
3- Wait 30 minutes
4- Make sure all doors are closed
5- Reconnect battery Cables
6- Lock & unlock the vehicles using the key from driver door side (if you have a key fob with no blade key, just lock & unlock using the key fob buttons)
7- Enter the vehicle and attempt to start
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