Car dies right after starting!!!

[yungrell468]

I have a 2004 Infiniti G35x and after owning it for 2 yrs i recently replaced the battery....since replacing the battery my car starts but dies right after. If i rev the engine a little then the car stays on. Sometimes it actually starts and stays on but it seems like it does it when it wants too! I really need help because i'm hearing so many different things...some say the car has to reset itself but some say that i may have an alternator problem. When i had the old battery in i never had a problem so i am thinking its not the alternator. If anyone knows of this or has heard of this problem please help me out because i really don't want to go to the dealer and pay basically labor costs if its something that i can avoid.

[tollboothwilley]

How long ago did you install the battery? Are the terminals tight?

I know that having taken off my terminals a lot the negative sometimes doesn't hold a tight connection unless I pinch it a little with pliers. Maybe yours isn't fully tight like mine was?

It's possible that you have a dirty MAF sensor or a vacuum leak also.

[BrandAidDesignG35]

Check your air filter, it sounds like its gasping for O2...

Did you check your terminals? Re-tighten everything to be sure.

[et751]

o4 g35x, same problem very intermittent for about 10 starts after new battery. Thought it was wet engine or bad gas. Went away about 2 weeks now.

[et751]

and it worked.

[et751]

Car must be relearned after new battery. Here is procedure. Start car and put a/c on coldest setting,put in drive--wait 60 secs--turn off a/c--wait 60 secs--put in Park and turnoff--wait 60 secs--restart. That should do it.My good friend is Infiniti service mgr and says local mechanic would probably not do it and he is right because I watched my guy do it and he changed batteries and then just gave me the keys. If Infiniti did it he said tech would have done this procedure.

[yungrell468]

Thank you all for all the help...I feel loved!!! I actually talked to an Infiniti tech at a dealership in my area and he told me I had to relearn the throttle valve. I'm not sure if thats exactly what he said but he told me to turn the key to ON for 2 secs then OFF for 10 secs then ON for 2 secs then OFF for 10 secs....he told me to repeat this 3 times and then start the car. I started the car and there wasnt a problem...i was amazed so pulled over and turned the car off then back on at least 4 times on my way home just to be sure. I just can't believe the problem was sooooo simple to fix. Thanks to you all for the help and I LOVE MY INFINITI again! LOL

[joe603]

Glad you got her fixed!

[et751]

Also used sequence to reset ccar after battery replacement .Drove from NY to Fla this week and no more stalling.