WEIRDNESS!!

b20beast · Post by **b20beast** » Sun Jan 25, 2009 3:13 pm

hmm its weird

b20beast · Post by **b20beast** » Sun Jan 25, 2009 3:18 pm

I once checked wideband as closed loop input but i press cancel.... dont know if its related

b20beast · Post by **b20beast** » Sun Feb 01, 2009 2:24 pm

Ok i changed the alternator, got one from the junkyard. It still fluctuates, but not as much. Here is a pic, tell me if this is normal

Post by **calvin** » Sun Feb 01, 2009 2:56 pm

wat is your avg voltage above 3k rpm?

b20beast · Post by **b20beast** » Mon Feb 02, 2009 10:10 am

Fluctuates in the range 12.9 - 13.5 3000-4500 rpm Ac on.

Post by **calvin** » Mon Feb 02, 2009 10:53 am

well it should be more in the region of 14-14.2

b20beast · Post by **b20beast** » Mon Feb 02, 2009 11:11 am

Could it be the alternator alone, or antything else.

JaredKaragen · Post by **JaredKaragen** » Tue Feb 03, 2009 5:13 am

check the wire form the ALT to the fusebox... look for any rusting or anything.... replace if you see it... tis worth the effort. Secondly, get your battery tested for CCA's... if good; then I would suspect the alternator for being bad; at anything above 1,500 RPM, it should be well close to 14.7v.. at the least 13.6, but that is on the extreme end of the low scale IMHO.

Post by **Gaskleppie** » Tue Feb 03, 2009 2:07 pm

maybe he has alternator control shut off?

Post by **calvin** » Tue Feb 03, 2009 2:28 pm

JDM doesn't have that..

b20beast · Post by **b20beast** » Sun Feb 22, 2009 5:03 am

i was thinking, I am using stock injectors. Is the stock battery offset table accurate? Or do they always need to be tuned? Still trying to figure out my inconsistent afr readings. btw, my alternator had bad parts. i will install it tomorrow and keep you posted. Stephan

Post by **calvin** » Tue Feb 24, 2009 1:22 pm

let us know. and i found the 1.02 or 2% thing fixed it.

b20beast · Post by **b20beast** » Wed Feb 25, 2009 4:49 am

calvin wrote:let us know. and i found the 1.02 or 2% thing fixed it.

installed the alternator, volts are not in the 14V range under wot

also idle, battery voltage tables jump from 14-12V i might need to tune the battery offset table to fix this inconsistent afr.

Post by **calvin** » Wed Feb 25, 2009 11:59 am

fix the problem where it is. It's charging, ground or something related. it should be 14.x V at idle

b20beast · Post by **b20beast** » Wed Feb 25, 2009 4:55 pm

Not sure whats happening, took the car back to the guy who repaired the alternator. he put a meter on it, idle at high 13's Rev it, it stays at 14.0V I am lost I have been thinking My Wideband Gets power from A25----yel/blk------PGM-FI Main Relay (power) I Hope this does not screw up my battery reading And Wideband Ground is on A24