Lund Flex Fuel Tuning

[pwnall1337]

Both LUND flex fuel and non-flex fuel tunes have the 2nd set of o2 sensors turned off. They burn that feature into each tune. No need for another tune if you get headers in the future.

so are these the same sensors that tend to break when using e85 with long tube headers because of the condensation? Which set of o2's read for the ethanol content?

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[Lonmon]

No, the front A/F sensors are the ones used for ethanol content and also the ones that sometimes die early. The rear ones were only really used for cat monitoring.

 

[GTBOB]

so are these the same sensors that tend to break when using e85 with long tube headers because of the condensation? Which set of o2's read for the ethanol content?

No, it's the 1st set of o2 sensors that may burn up as they have the heaters built into them. They are also the ones that infere the ethanol content. The 2nd set is mainly used to detect cat efficiency and commands extra fuel if the cat reaches an over temp threshold.

 

[Dominant1]

Beef i'm curious, if i wanted to switch to e-85 from 93 and i have stage 3 cams installed can i get an emailed flex fuel or is that dyno only do to cam timing?

 

[Terminator2]

Beef i'm curious, if i wanted to switch to e-85 from 93 and i have stage 3 cams installed can i get an emailed flex fuel or is that dyno only do to cam timing?

I'm thinking if Lund did your 93 tune and have your cam angles then yes. If they were not who tuned you originally I'm going to say no unless they have done other stage 3 cam cars and I know you are one of the few with them. Optimum power can angles definitely have to be done on the dyno the others are mostly for fuel economy and drivability which can be done on the street.

 

[beefcake]

once the tune is dialed in on the cams, you should be able to swap no problem.

fyi, ngauge is on our black friday sale

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