Performance Tuner for 2007 Ford F150 5.4L w/ Cold Air Intake That Wont Make Engine Run too Lean

Question:

Hi, I got a 07 f150, 5.4 it or, I had a kandn cai and a afe tb spacer, I installed this edge device the 15051, I only want it for the # 1 setting for the transmission mode and to be able to change the tire size, now I am hearing that this unit might make the truck run too lean and make it stall, if this is the case which one would I get?

asked by: Marcio

Expert Reply:

According to my Edge representative, using an older tuner like the # EP15051 in conjunction with a CAI kit can indeed cause the engine to run excessively lean and stall out. A CAI by itself can cause an engine to run a bit leaner, but when a tuner like the Evolution # EP15051 can make the lean condition worse.

Newer tuners like the CTS3 # EP59YR actually offer a CAI-dedicated tune that will adjust for the CAI and prevent the engine from running too lean. A transmission only mode is also offered and you will be able to adjust for tires size.

expert reply by: Mike L