I'm at a loss now..
few weeks ago, my 08 g37s sport started throwing random battery and brake dash lights. A few times it died on me, as well as having issues starting. Battery tests bad so i went a head and threw on a battery and fresh new( not reman) NAPA alternator. Now the lights are off and went for a test drive...it did the following
- pulsating lights
-pulsating idle
- I got dead pedal about 4 miles in
-wouldn't start.

So I thought maybe it was the battery sensor plug on negative side. I unplugged it, and I was able to get home. Still pulsating idle and interior lights.
I start it in the drive way and it idles fine in park... then I put in drive and then it has no pedal at all. I have no engine codes at all to go off of! Help an old man out please!

 

Read through this thread as it explains the flickering. In short, the alternator is the issue. These cars are extremely fussy when it comes to aftermarket / remanufactured/ Chinese-branded units. Some work / most don't.

If it were me I would get a used OEM (Mitsubishi-branded) unit from eBay and call it a day.

 

I figured this might be the problem. I'll install another one and see what happens. Thanks!

 

whats the verdict on denso reman?? Ebay is saying it might take a week and a half. Need car asap..

 

I can not say one way or the other if the Dsnso unit will work or not. As I said, some do and some don't - it is one of those "trial and error" or "luck of the draw" crapshoots.

Is there a local pull-a-part yard near you that might have one laying around?

 

My alternator from Goodyear Auto lasted 2 months before I needed another one. My buddy brought a new aftermarket one that was d.o.a out the box for his truck . Unfortunately, sometimes you gotta pony up for oem when dealing with alternators. Infiniti dealers all wanted around $1,200 parts and labor. Goodyear charged me half that.

 

I've tried everything. 2 brand new batteries, 4 alternators. This last one is a nissan alternator and I had it tested prior to installing. The first one charged at 14v for a day then just quit. And all others charging at only 12.3 volts. No parasitic draws either. Checked all the grounds too..No battery lights or brake lights on display either. I'm at my witts end yall. Any ideas?

 

Any updates?

 

Now I was told the IPDM was possibly bad after diagnosis. So I replaces it with a working ipdm off another g37... and still only charging at 12.4 volts... im clueless here still.