2005 impala

[casper80]

got a 2005 impala and we replaced the sparkplugs drove fine for a while but then died out and wont start checked the icm and coils and they are fine when i connected everything back it started but then died out

[maxwedge]

If you have good spark to the plugs, check fuel pressure, no engine listed so cannot go beyond that.

[casper80]

3.8 engine and i dont have any spark going to the sparkplugs. i took the coils and icm to get checked at autozone and they said everything was ok i brought the scanner home and checked for codes none stored no freeze frame i wanted to know if maybe tje crank or cam sensors could be the cause. Ok so here is a little more on the story car was hesitsting as if tranny was slipping we replaced the sparkplugs and it helped a little but then after about 24 miles it started jerking again and died out started for a little then died hasn't started again. does any body know how to check the crank sensors and what is the input on the icm im only getting 1 power and 1 ground.

[maxwedge]

Check for cranking rpms on the scanner when turning the engine over, if none suspect the crank sensor or wiring from the cps to the icm.