HELP!!!! CODE 24!!! No spark!!!

[TATTOO BILL]

My GN started running like crap, sputtering and misfiring.... then it would just crank. I finally got it started again and it ran like crap again, but now it wont even fire ! I found that the ignition modue was melted and replaced it with a new one. Still nothing. I replaced the coil pack.... nothing. ECM....nothing!


It is flashing a code 42 for no signal to EST I dont know which way to turn now!!!

Any ideas?

 

[TATTOO BILL]

Code 42............

Sorry about that!

 

[rmar]

Vortex Buicks


Great place to start.

 

[TurboBuRick]

Check harmonic balancer bolt.

 

[pacecarta]

Malfunction Codes Reference