Rough LS1 idle

[anvlson1]

I had a look through the forums but could find anything that helped....
Basicly my car in the last few days has developed a really rough idle to the point were the car almost stalls. Its a 5.7ltr Vx with a maffless tune. Ive got no idea whats doing it, the only thing i though it could of been was if it was sucking up water through my cold air intake when i go through puddles (as it pokes out the bottom of front gaurd) but that wasnt it.
Any help?
Cheers

[soop]

I've had a similar issue, but its been kind of random in its occurance.
I'm waiting for a scan tool to arrive so i can check and see whats causing it, but im betting on a crank angle sensor though.

[SSINZ]

the issue is either the leads or quite possibly the spark plugs. its a common thing. change ur spark plugs if that dont work change your leads. it wont matter to much as u prob need these 2 new parts anywho so save yourself some money for next service. and they arent to expensive either.