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Thread: Where do y'all source 12v for your wideband???

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Posts: 21-30 of 33
2014-03-27 19:04:14
#21
Originally Posted by LAM-PARK
BATTERY:
What battery are you using? EverStart MAXX (Walmart) 3 year
What is the CCA on the battery that you are using? 640
How old is the battery? 2 years (3/2012 sticker)
Have you performed a load test on the battery? How?

ALTERNATOR:
Are you using a B13/B14 or B15 alternator? B13 (2 years old)
Have you performed a load test on the alternator? How?

Do your headlights dim when you turn the blower motor on? No

Have you connected a volt meter to see if system voltage drops when you turn the blower motor or headlight on or when the radiator fans come on? Yes, see 2nd video above


^answered questions
2014-03-27 19:10:29
#22
Do you have nismotronic?
2014-03-27 19:13:03
#23
Also, dunno its useful info at all...after I shut off the ignition I turned it back one click to the on position, turning on the wideband without the motor running. It read a stale 14.5'ish bouncing up and down .1 or so. I turned on the lights and blower motor which made no change to the reading.
2014-03-27 19:17:21
#24
Originally Posted by 93specv
Also, dunno its useful info at all...after I shut off the ignition I turned it back one click to the on position, turning on the wideband without the motor running. It read a stale 14.5'ish bouncing up and down .1 or so. I turned on the lights and blower motor which made no change to the reading.
This is really good info, and a really good test. I wish I'd thought of it.

This likely means your wideband wiring is fine, and the AFR change is true. As mentioned, could be injector battery voltage offset being wrong, or it could be the load on the engine placed by the electrical system forces it into a slightly different section of the fuel tune.
2014-03-27 19:18:21
#25
No. I have what would have eventually been nismotronic: Calum Realtime
I use TunerPro for adjustments, There are injector tables. Lemme hop on my laptop quick and see if I see an injector battery table.....
2014-03-27 19:26:25
#26
Well either that or like ben said load on the engine is forcing it to run in different fuel cells at idle or something..

Also how old is your sensor? Mine just died after 4+ years however it wasnt reading correct anbi was actually .5-.9 lean under boost
2014-03-27 19:28:42
#27
So it could quite possibly come back to my crappy tune from the Subaru guy who didn't know anything about a TP scale and tuned me with a faulty wideband on his machine?

In TunerPro with my tune open all I see sounding like what's being talked about is "001A- Injector Voltage Adj", which is currently set at 102.
2014-03-27 19:32:20
#28
Sensor is entering its 4th year of use. 30k on the motor since the swap June 2008, wideband installed summer 2010...and I've hardly driven her the last couple years. I don't drive her in winter. Sensor installed properly mid-exhaust.
Last edited by 93specv on 2014-03-27 at 19-39-56.
2014-03-27 19:45:02
#29
Id def upgrade to nismotronic man fo real.. might l ook into replacing that sensor its lije 50 bucks usually
2014-03-27 19:55:25
#30
Maybe I'll just shelf this till after my Marsh tune in May, if it then still persists. I had no idea the problem could be in the tune.
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