S13- SR- Gas going fast! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Boost_Fiend · 02-09-2012, 08:43 PM

^^ are you sure about that? I have a redtop with a "redtop harness" and am currently using a "fat" black top o2 with a e5 ecu. I did nothing but take out my skinny o2 and put the fat o2 in. do you have a wideband to actually know if there is no difference? because as soon as i put the correct o2 in to match the e5 ecu my afr's were much different, no longer rich all the time, and maintained a stable 14.7 at cruise and 13.5 at idle. maybe your rich problems stem from else where.

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02-09-2012, 08:43 PM	#39
Boost_Fiend Zilvia Member Join Date: Jan 2009 Location: Ft. Lauderdale, FL Posts: 199 Trader Rating: (0) Feedback Score: 0 reviews	^^ are you sure about that? I have a redtop with a "redtop harness" and am currently using a "fat" black top o2 with a e5 ecu. I did nothing but take out my skinny o2 and put the fat o2 in. do you have a wideband to actually know if there is no difference? because as soon as i put the correct o2 in to match the e5 ecu my afr's were much different, no longer rich all the time, and maintained a stable 14.7 at cruise and 13.5 at idle. maybe your rich problems stem from else where.