Quick question (o2 sensors)

[Tsar]

So i need 4 new ones, the fronts and the backs are the same right? i mean i got 4 wire 02s in front so can i assumes that the back ones are the same or is there a difference. and where can i buy them the cheapest(not the crappiest kind tho)? thanks!

[foff667]

i know with ls1's the front ones are a different length then the rear so there is that difference.

[JL8Jeff]

On my 96 SS the fronts were 4 wire flat connectors and the rear ones are 4 wire square connectors so they are different. Take a look to be sure. The fronts should be the AC Delco AFS75. I put simms in for the rear ones with the headers.

I think I bought the front AC ones here: O2 sensors

[qwikz28]

ha! i was right!

[foff667]

chalk another one up to 96-97's being the redheaded stepchildren

[qwikz28]

Originally Posted by foff667

chalk another one up to 96-97's being the redheaded stepchildren

[foff667]

dwelling on my recent experience tuning LT1's...1/2 the file size...tables split up to where it make tuning very difficult. Finding out the commanded a/f ratio is a calculation:

Air Fuel Ratio per Andrew =
(1 - ([# in Temp Table] + [# in RPM Table])/100)*14.7



A/F Ratio per Jody Shapiro =
14.7/(1+Number in the Cool temp table/100+ number in the RPM table /100)

just trust my word...theres a reason im no longer tuning them

[qwikz28]

Originally Posted by foff667

dwelling on my recent experience tuning LT1's...1/2 the file size...tables split up to where it make tuning very difficult. Finding out the commanded a/f ratio is a calculation:

Air Fuel Ratio per Andrew =
(1 - ([# in Temp Table] + [# in RPM Table])/100)*14.7



A/F Ratio per Jody Shapiro =
14.7/(1+Number in the Cool temp table/100+ number in the RPM table /100)

just trust my word...theres a reason im no longer tuning them

lol ok

[Tsar]

thanks all, i got all the stuff that i needed.