i have an 03 350z the issue im having is the engine seems like its running fine however the whole car shakes heaving during idle and while driving. theres also a chugging type sound from the exhaust. ive checked the MAF sensor and the Crank position sensor and the TPS. im at a loss. any help is appreciated.

 

Are you throwing any error codes? check engine light on?

 

Misfire code P0300 and the service engine soon light is on and blinks when
I drive.

 

Engine is misfiring check your coil packs, common issue.

 

Thanks

 

^^ I agree with guitman32’s suggestion. Your problem description along with the misfire code suggests a faulty coil pack.

 

Don't go replacing your coil packs until you've tested them first. Unless you LIKE to blow wads of cash.

Also, it would have helped if you had posted your error code in your first post, along with the mileage on your car and any mods or recent work done.

 

I was surprised how fragile coil packs were after a car had 100k mileage. I tested after having the problem. --Spike