I have a 2003 G35 that is having some issues. Currently, when cranking, I have to hold the key in the crank position for 2 - 4 seconds before the car cranks. The battery, starter, and alternator are all good and I recently had the spark plugs replaced. I recently had the crankshaft position sensor replaced and I was getting an error code for IAT (P0113) which seems to have gone away (not replaced). Before I get ripped off by going to the dealer, I want to explore other options. Aside from the slow crank, the car drives fine, but I know something is wrong. Thanks in advance.

 

If you are sure that the battery, stater and plugs are good then it might be a grounding problem somewhere, might wanna post in the v35 sedan section as well, might be a known issue to some.

 

Alright - new information. I took my car to the local Infiniti dealership for a dianostic. Before going there, I pulled code P0345 (pending) which is for camshaft sensor bank 2. I had already replaced this recently. The serviceman at the dealership told me that bank 1 and bank 2 needed to be replaced. I told him that bank 2 was already replaced. Well, I replaced bank 1 tonight. Unfortunately, nothing has been resolved. I cleared the codes with my scanner and they come right back immediately when I crank (slowly still) the car. Any ideas?

 

I've recently been told by auto zone that bank 1 & bank 2 are having issues. Plus my car has been slow to start as well. Do you have any update on your situation?

 

Yes, my new bank 2 sensor was not tightened well. Once I tightened it, all the issues went away. I replaced the bank 1 sensor also. However, I was not getting an error code for that one. So far, I haven't had any further issues.