I won't hurt to download and install Pegasus, but you WILL NOT need it until your custom tunes are written. That application will put your custom tunes into the Gryphon.

When you get your Gryphon, all you need to do is this.- Jack

 

You'll be fine. I had an 01 with the 5.4, CAI and a programmer and I didnt have any trouble at all.
Funny thing is one of my company trucks is an 04 with a 5.4 and CAI and we've put 200k miles on it and never had any problems.

 

To be clear, you are wrong. Any change, no matter what application, to the MAF sensor needs to be tuned.

Based on your [wrong] information, that would mean the JLT intake and my truck doesn't need to be tuned, since it is not a 04 or 05.

 

i agree. its like the maf sensor would need to be re-learned in order to work 100% more efficient .

 

^^^ you two, wow, just wow, I have nothing nice to say so I'm not gonna say anything

 

???wat u talkin bout? all i agreed with him on was re-tuning the sensors..

 

Yes, the 2004+ F150s are more susceptible to maf housing changes to create lean conditions but it's the same principle with all of these trucks that run ODBII systems. I wouldn't want to run it for an extended period of time. Besides, you're not making full use of the potential of the cai without a tune.

What do you mean? i.ride.suzuki is exactly right.

 

yep...thank you...

 

The point I was making was that it isn't the combination of a programmer and a CAI that can be a problem; it's the CAI. Like I stated above, the 04 and 05 5.4L engines come from the factory in a near-lean condition, so adding a CAI to those engines can "push it over the edge" into a fully lean condition, which can potentially cause knocking and detonation. I never said that a CAI on a non-04/05 engine shouldn't be tuned or that benefits wouldn't be realized. In fact, I didn't specifically mention any years other than 04 and 05 because, based on what I understand, those are the only years where leanness is a problem.

 

Sorry to somewhat hijack this thread, but I have an Edge Evolution related question. '08 5.4 S Crew Lariat.

I'm running the level 3 performance tune. Everything seems to be working great except for one thing. The speedometer calibration doesn't seem to be making any difference. Every time I try to re-program it and input the correct tire size for my 31-inch tires, it doesn't save it and therefore there's no change. Even if I return to stock and start the whole process all over again, the computer isn't storing the new tire size.

I must be doing something wrong but for the life of me I can't figure it out.

And just for everyone's information, I'm running a K&N intake with zero issues.
:-)

Tony

 

See my response about this in the other thread, Tony. If you have 31" tires, I'd try a Tire Size (TS) of 2400mm. This would be the circumference in millimeters with about 3% squish. Make sure your Gear Ratio (GR) is set correctly too.

- Jack

 

I did, thank you. Why in the world would my GR be off? Heck...I don't even know what my GR is, nor did I think I would NEED to know. LOL

And BTW, I have 35-inch tires, not 31. My bad.

Tony

 

because it has been known to happen that the default is not what you really have. I had that problem.

 

OK, Tony -

For 35" tires, your diameter is 35 x 25.4 = 889mm. The unloaded circumference is 889 x pi = 2793mm (rounded to the nearest mm). Accounting for 3% "squish" you would enter 2793 x 0.97 = 2709mm for TS. (This is much higher than the "default" value you're seeing).

The Gear Ratio (GR) is something else you have to verify and reset if necessary anytime you open the custom options menu. You can find YOUR GR in the VIN sticker on your drivers door under the word "axle" as a code. Here are the codes:Mine is "B6", so I make sure it says 3.73.

Hope this helps.

- Jack