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Over the winter I rebuild my 93 LT1, 355, hot cam, TF 185 heads, LT headers. Now I need a new tune. The tuner I have used in the past is telling me I now need wide band 02 sensor. I am at a loss which to get. He suggested I look at the moats site. What is the purpose of the wide band sensor and what do I need to hook it up? Do I just replace one of my sensors with a wide band one? I did a search here on the forum and found some have simply replaced one existing sensor with the wide band and the computer seemed to have no problem reading it. Do I need a gauge or can I just get by hooking it up to the lap top? thanks for any comments from those who have already done this.
If you're paying somebody to dyno tune, they should have all this already and all you need to do is have a bung welded in.
If they don't have this stuff already, you probably need a new tuner.
If it's an amateur buddy doing the tuning for free, different story, but in that case he still needs to tell you what kind of WBO2 he has experience with and how he wants it installed.
Vis, thanks for the reply, this is not a dyno tune, no dyno within 100+ miles of here. It is a mail order tune from a tuner who does not advertise here so will remain unnamed. And yes it is just a street tune, no need for absolute max hp.
Ignoring for a moment that your combo should be tunable with an off-the-shelf mail-order tune...
You need a WBO2 installed. No it doesn't replace the regular O2 (it can, but that just complicates things). You need some kind of hardware interface that records what the WBO2 is seeing and other parameters like TPS, rpm, etc. and feeds it to your laptop. Ideally you want it all integrated with the datalog from the ECM, but if you have TPS and rpm that can be done in postprocessing.
I don't know the 92-93 computer, so I don't know the best way to get there for you. It's going to be a few hundred dollars at the least plus a bunch of your time figuring it all out.
If you go that far, might as well get the equipment you need to tune it yourself.