Nismo FPR installed, alternator died.

[biosehnsucht]

ot the Nismo FPR installed yesterday.. started that on tuesday, but doing so w/o completely removing the fuel rail was nearly impossible. But that fixed the richness problem (from the Walbro 255 lph high pressure pump) and it ran like a champ until the battery died.

To get hte stock FPR off we got one screw off that holds it on, but the other just stripped. so we had to unbolt the rail, remove the injectors, and flop it around until we could get at the screw with a dremel.. we destroyed the screw until we could spin it with pliars then it was off.

We had to loop the return line around since I was using the one courtesy stocks which isn't for CA but for pretty much everything else, the return line on the FPR comes off at the wrong angle (if looking at it from the rail side, normally it comes off at around 30-50 degrees below horizontal on the left side, this one was about 40-60 degrees below horizontal on the right side)

Regardless, got that sucker adjusted and it ran great.. until it died.

Apparently my charge warning light is toast, and however the alt died it was causing sveeral other idiot lights to come on.. AFTER the car was turned off. We're theorizing that the diode crap is shot so bad that it's bleeding positive battery voltage some of the time after the car is shut off into the IGN ON/START section of the fuseblock, and from there it hits the idiot lights (which are ground switched, so they turn on since when the car is off the oil pressure is at 0 psi and generally the ebrake is up so those both come on)

this was on a rebuilt alternator, going to get it rebuilt again and maybe the spare if I can afford it right now, and tell the place to do whatever it takes to make it survive at 7000rpm (since I do a lot of 4-7krpm driving, granted most of the time I'm not up there, but I'm up there alot). The place we got t rebuilt at is where most of the shops around here take theirs and its where several locals have recommended so it's not like they're just shady or something.

[RMiller]

Don't run the car with a new alternator until you completely recharge the battery. The guys that rebuilt my alternator told me that was important and the alternator could die if the battery wasn't fully charged.

[biosehnsucht]

Yeah, I'm going to replace the battery (since it was run completely dead, I'm doubting the charger will resurrect it, but I'll try) and charge it first using a friend's charger before actually putting it in the car.

But as it's been fine for several months and just now died it seems more likely that my recent increased use of the top end of the rev range may have been more than it could handle. I know I killed the one on my S-10 truck from too much high end use (I was ghettoshifting it all the time and driving it hard)

[originalsin]

wonder wat they can do to make it take more abuse

[biosehnsucht]

Well got the re-rebuilt in, working great so far.Interestingly my headlights are much brighter than they've been in many months, perhaps the combination of new battery and rebuilt (again, perhaps better?) alternator ..

As for the FPR.. wow.I just drove for ~60 or so minutes averaging around 70mphish (guestimating from RPM and such, as the speedo and therefore odometer aren't working right now), and the fuel gauge only went down ~2-3 gallons.. guestimating as I didn't top off before and after to compare..

But it looks like hwy driving I just got most likely ! 25 - 28 mpg, could be anywere from 23 to 35 from those estimations but until I get the speedo working again no telling..

Now to get some new spark plugs and maybe a new O2 sensor since I was likely fouling the crap out of the plugs before w/ teh mad richness and I'm using the sensor that came on one of my motors originally