Alright guys I'm having issues and can't find any thing similar in searches. My wife's 04 g35 is acting up. When cold car starts up as it should and idles smooth as butter. As soon as it reaches normal operating temps the idle starts to get slightly rough and if u give it a quick rev and let off occasionally it will just die. Also once it gets warmed up it acts as if the battery is weak as in the starter turns over much slower than normal, but ONLY when its warm. Had the battery, starter, and alternator tested and all tested fine even tho it was doing this during the test. Also it's popped the main fusible link twice while doing this. No sel light or codes and if u let it cool all the way down it turns over as it should again. I'm lost on this one. Any help is appreciated.

 

sounds like cam shaft sensors to me

 

I agree with travlee. Exactly what happened to me before replacing the sensors. also worth having autozone or someone check the code for free. mine came up with a cam shaft sensor error.

 

Changed cam sensors and still does same thing. Gonna change the crank sensor in the morning and see if that helps

 

Did you use oem or vato-zone sensors?

 

Delphi sensors from rock auto

 

there are many of cases where people, just like you did, bought cheaper non oem sensors and the issues remained, but when they bought and installed oem the problem went away

 

can we confirm this? im having this issue right now my car just cranks i get fuel and spark , maybe i should try buying actual oem sensors?