I know this is a dumb question, but my dyno time is this saturday and it turns out there is no tuner available. so it looks like I have to run around with the hitman map. The map works perfect, but gas mileage is killing me.

I'm using the stock o2 sensor. What settings need to be dialed in so it can be enabled?

 

What O2 sensor? 1, 2, 3, or 4 wire? Settings are basically what ever you have. Where are you located? im going to be in the US from monday, and will be doing quite a bit of traveling. If you need tuning we can work something out.

What ECU is this?

 

sorry, E6K, stock 1 wire. i'm in salt lake city, ut.

 

You should really consider getting a 3 or 4 wire sensor for better results, but for best results you should really get a wideband.

 

i guess I should have made the post more clear

I need to know what closed loop settings for the output options to use to make it so my o2 sensor is functioning and putting the car into closed loop on the freeway. Cruising at 4K rpm I can watch my gas gauge drop.

 

You definately buy a wideband and tune your car for better economy, or have a professional tuner get the best out of your setup, either way, sounds like you'll need to improve the tune on it if you're seeing the fuel gauge needle dropping as you drive it. Your spark plugs should also be checked.

 

well you need a couple of things.

1. you need to know the voltage of the o2 sensor @14.7:1 afr, they vary with sensor type/brand/age etc. the haltech doesnt know this, you have to tell it

2. the map needs to be pretty close, with the o2 unplugged on a stock ecu its running in the low 14's, they just use the o2 sensor to lean it out a little bit.

i think most people here dont use the o2 in feedback, it takes time to set it up, and then you can go a little leaner and get some mpg anyways

 

yeah I definitely need a tune. dyno day was today and unfortunately the owner sold the dyno and canceled all the sessions