Voltage drain causes rich condition!? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*NemeGuero* · 08-02-2006, 02:49 AM

So.. at idle with my headlights on... my AFRs read from 10ish to "rich".. after I turn the headlights off.. they climb back to 12.9 and 13s.. (I have a rich tune)..

Headlights on... 10s to "rich"

Headlights off... (high 12's to 13s) <---Normal

Question: Is the drain from low voltage to my walboro? Bad alternator? Low voltage to injectors?

How do I go about diagnosing?

I'm gonna try the fuel pump hard wiring kit...
Any other insight, suggestions?

Thanks Zilvia.

08-02-2006, 02:49 AM	#1
NemeGuero No more nissan. Join Date: Jan 2003 Location: RAIN, Washington. Age: 40 Posts: 8,132 Trader Rating: (10) Rides Gallery: NemeGuero Feedback Score: 10 reviews	Voltage drain causes rich condition!? So.. at idle with my headlights on... my AFRs read from 10ish to "rich".. after I turn the headlights off.. they climb back to 12.9 and 13s.. (I have a rich tune).. Headlights on... 10s to "rich" Headlights off... (high 12's to 13s) <---Normal Question: Is the drain from low voltage to my walboro? Bad alternator? Low voltage to injectors? How do I go about diagnosing? I'm gonna try the fuel pump hard wiring kit... Any other insight, suggestions? Thanks Zilvia. __________________