^^^ I'm guessing those "3 groups" would correllate to 3 different target AFR's for light load, mid load, and high load? I just went for 2 different groups, high load (13.1:1 AFR) and everything else (14.7:1).

 

kind of.. It really just depends on what the engine is happy with.

you can go much leaner than 14.7:1 at low load cruising type situations

 

with your current map whats the best mileage to your tank ?

 

From what I've read, the FlashPro doesn't give you the ability to tune for a lean burn cruise unless you either limit the max fuel trims or disable closed loop completely. However, now that I think my fuel map is dialed in so well, I'm thinking about limiting the fuel trims to around +/- 4%.

 

I do very little highway driving, and spend quite a bit of time at full throttle, so I rarely get over 200 miles out of a tank. My last tank was gone after 170 miles.

 

If you dont do much highway driving running it leaner wont do anything for you.

The most i ever saw with the stock ecu was ~24mpg, i got a consistent 27 with the aem. My driving is mixed with mostly beating the crap out of unless i was on the highway

 

I got 29 MPG during a 350 mile, 70 MPH cruise on the interstate in my '02 with a stock ECU. I realize that I wouldn't save much money with a lean burn cruise, but I would still want to do it, just because it would be "better". During the summer months, I probably do 200+ highway miles per week just because of weekend activities (boating, autocrossing, etc.), so it would help some.

I'm t hinking about starting another thread about the pros / cons of running open loop all the time on the street. How dangerous would it be, and how much would it improve the driving experience (throttle response, etc.)?

 

its funny, the ap2's always seem to get better mileage than the ap1's, stupid small motors. haha

Closed loop is good, so long as you have a good sensor and you can control it.

 

The 29 MPG trip that I got was with my '02 AP1. I haven't done a long enough trip in my AP2 to know what it will do, but I assume it will be better than 29 MPG with the higher 6th gear.

 

Mine isn't too far off but the suggestions will never get close if you give it too much variation in throttle. Quickly jumping on and off the throttle doesn't help the suggestions.