Steeda CAI runs poorly in 2011 Mustang GT

downeytim · Post by **downeytim** » Mon Jul 28, 2014 2:15 pm

I have installed the generic 100 mm 93 octane tune on my 2011 mustang gt 5.0. It has the Steeda Cold Air I just bought and Borla axle back S-Type exhaust. After the install of the tune the car is much less responsive. It acts like it is not getting enough of something at low rpm's below 2500. The power seems to come and go below that level. It also does not seem nearly as quick as the 93 octane performance tune I had one it before.

I have the ford_can_gas tunes loaded from the latest crom I loaded a few days ago.

Can anyone advise as to what I am doing wrong.

Post by **mikel** » Mon Jul 28, 2014 2:40 pm

can you post the tunes from the tool here?

downeytim · Post by **downeytim** » Mon Jul 28, 2014 3:49 pm

here is the std 93 octane 100mm generic that I loaded.

downeytim · Post by **downeytim** » Tue Jul 29, 2014 2:00 pm

Were you going to post me a new tune to load or are you just checking that one out? Just trying to see where we are going.

The car is running poorly, so thanks for your help.

Post by **sohfast94** » Tue Jul 29, 2014 2:27 pm

Could you get me a log at idle please?

Or a reading of the LTFT and STFT percentages will do fine as well.

downeytim · Post by **downeytim** » Tue Jul 29, 2014 6:34 pm

here is the log at idle you asked for.

Post by **sohfast94** » Wed Jul 30, 2014 11:14 am

The only change between the regular 93 tunes and 100mm is the maf slope. Maybe the load calc is off. Try this.

downeytim · Post by **downeytim** » Thu Jul 31, 2014 7:40 am

The last one you gave me seems to be great when you open it up all the way. It is seriously quick. But it bogs down a bit at very low RPM's and it runs a bit rough when you are just cruising. It acts as if it is either starving just a bit or that it is wanting to go and you won't let it, if you know what I mean.

The standard tune has a very loud and deep additional tone from the engine than it ever did before, the Steeda I assume. But the latest tune you gave me does not have that sound. Don't care one way or the other just giving you info.

Thanks for the efforts so far. It is appreciated.

If you need some more information let me know.

Post by **sohfast94** » Thu Jul 31, 2014 12:03 pm

See if this is any better.

downeytim · Post by **downeytim** » Wed Sep 03, 2014 10:00 am

I am going on a long trip, 2000 miles round trip. Is the tune you sent me considered a performance tune, race tune, or something else? Is it ok to drive long distances with the standard 100mm tunes or this custom version you created for me?

Thanks

Post by **sohfast94** » Thu Sep 04, 2014 9:35 am

Just use the tune I posted it will be fine.

Steeda CAI runs poorly in 2011 Mustang GT

Steeda CAI runs poorly in 2011 Mustang GT

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Re: Steeda CAI runs poorly in 2011 Mustang GT

Re: Steeda CAI runs poorly in 2011 Mustang GT

Re: Steeda CAI runs poorly in 2011 Mustang GT

Re: Steeda CAI runs poorly in 2011 Mustang GT

Re: Steeda CAI runs poorly in 2011 Mustang GT

Re: Steeda CAI runs poorly in 2011 Mustang GT

Re: Steeda CAI runs poorly in 2011 Mustang GT

Re: Steeda CAI runs poorly in 2011 Mustang GT

Re: Steeda CAI runs poorly in 2011 Mustang GT