Air /Fuel Ratio

[LocoLightning02]

I working on my L and disconnected the battery. Every since then my air/fuel ratio has been reading 10.0-10.5 at WOT. It was a fine 11.5 before I disconnected it. I have a 6lb lower and tuned by Terry:). I wanted to ask some question before I put the SCT on there and start messin crap up. Any suggestions?

[PUMP]

Under normal accelerator, i.e. cruising, A/F should be +-14.7.
When the battery is disconnected, the long term learned fuel trims start at zero and have to be relearned. At WOT the A/F should read whatever is commanded in the short term fuel trim table.
So the question is, under what conditions are you reading 10.

[LocoLightning02]

Under normal accelerator, i.e. cruising, A/F should be +-14.7.
When the battery is disconnected, the long term learned fuel trims start at zero and have to be relearned. At WOT the A/F should read whatever is commanded in the short term fuel trim table.
So the question is, under what conditions are you reading 10.


It is reading 10.5-11.0 at WOT. It reads 14.7 at normal accel and while cruising. I just put a new LFP Dual Heatexchanger. Im blowing nitrous into the heatexchanger. Just put the system on Monday and Im going to the Denton track to see if this thing was worth the money Friday. Last time I was there a month ago it ran 8.71 @ 81.79. Today was the first time I got down on it and notice the A/Fwent from a perfect 11.5 to 10.3-11.0.

[bluesvt]

It is reading 10.5-11.0 at WOT. It reads 14.7 at normal accel and while cruising. I just put a new LFP Dual Heatexchanger. Im blowing nitrous into the heatexchanger. Just put the system on Monday and Im going to the Denton track to see if this thing was worth the money Friday. Last time I was there a month ago it ran 8.71 @ 81.79. Today was the first time I got down on it and notice the A/Fwent from a perfect 11.5 to 10.3-11.0.

Mine goes into the 10's sometimes depending on the conditions. I would rather run a little rich than lean. Thats just me though.

[LocoLightning02]

Mine goes into the 10's sometimes depending on the conditions. I would rather run a little rich than lean. Thats just me though.


I thought that was a little rich, but didnt know for sure. Maybe it just has to learn it again. I may put it to the floor once a week. Do you think if I went out and ran it a few time it would go back normal? Will the Nitrous on the heatexchaner lean it out any? I havent had a chance to get it filled so I havent got to test it yet. NX says it will had 30-50hp (I just dont have the balls are the money to put in the motor YET:twitch: )I guess will found out Friday.

[tiffo60]

I thought that was a little rich, but didnt know for sure. Maybe it just has to learn it again. I may put it to the floor once a week. Do you think if I went out and ran it a few time it would go back normal? Will the Nitrous on the heatexchaner lean it out any? I havent had a chance to get it filled so I havent got to test it yet. NX says it will had 30-50hp (I just dont have the balls are the money to put in the motor YET:twitch: )I guess will found out Friday.

I have heard the some seem to think that maybe the nitrous will leak up into the intake and that could be where you get the power from but this is all speculation, as for the air to fuel, just drive it for 50 to 100 miles and let the computer re-learn and it should be fine:tu:

[TXLIGHTNING]

I have heard the some seem to think that maybe the nitrous will leak up into the intake and that could be where you get the power from but this is all speculation, as for the air to fuel, just drive it for 50 to 100 miles and let the computer re-learn and it should be fine:tu:+1 It just needs to relearn :tu: Take it out and stomp on it a few times :evil.

[LocoLightning02]

Hey thanks guy, drove to the track and everything was fine when I made the first pass. Best time of the night 8.68@80.97. It ran 8.72 with the spray. WTF. NX owes me.