need help car wont start after sub installed

[PeterUbers]

Originally Posted by g35couture

ok guys, first of all thanks alot for your help guys. i got the sub up and running today everything works great but my car still wont run unless i give it some gas i thought it was my alternator so i disconnected my battery and reved up the engine. then i thought it could be the battery so i went to recharged it. still the car will start but it will shut off right away UNLESS i give it some gas then its drivable. what could be the problem?

does it struggle, or does it start up right away like normal and then die?

[Manual G]

The problem will go away on its own or do the "Idle Volume Air Re-learning procedure."
Here's the link.

engine idle is messed up

[g35couture]

Originally Posted by PeterUbers

does it struggle, or does it start up right away like normal and then die?

it will start up right away like normal then die... could it be a bad alternator?

[Manual G]

Originally Posted by g35couture

it will start up right away like normal then die... could it be a bad alternator?

I don't think its the alternator. The car will stay on as long as he taps the gas on startup. The ECU needs to learn the idle because it was reset when the battery was disconnected. If I am wrong please correct me. There are some infiniti techs around here that can step in with some info.

[PeterUbers]

Why would the ECU need to re-learn the idle just b/c the batter was disconnected? i've disconnected 100's of batteries from vehicles of all sorts and never had to do this. Perhaps i would believe this if something interefered electrically with the ECU directly -- like something related to his radio ...

[Manual G]

It happens to me every time I disconnect the battery for long periods of time. The car starts up and dies unless I give it gas. After a day or two the issue goes away.


Read post 9 and 13
After Dead Battery Replaced, Car Stalls After Start, Won't Idle Unless GasPedal Tap'd

Idle after spacer/intake install

I have a wierd idle

[PeterUbers]

I think ManualG has your answer.

[g35couture]

thanks alot for your help guys

[johnjohn077]

I have same problem when I have my battery disconnected for a long time. Like Manual G said it goes away after a few days.. or you can try that procedure.