2009 Tahoe z71 5.3L running rich

[krom]

Hey gang,

New to the forum. I am thinking of purchasing a 7194 for my 09 Tahoe Z71 5.3L. I have a Flowmaster Series 50 SUV muffler and Volant CAI. The motor seems to be running rich now due to the CAI. Wondering if one of the tunes on the 7194 or a Diablew tune can help fix this. Thanks for your input.

[06MonteSS]

yes, it can be fixed by getting your fueling adjusted correctly...

and can also be fixed and more power gotten via a custom tune...

[krom]

Thanks for your input.

[redfoxsa]

Hey gang,

New to the forum. I am thinking of purchasing a 7194 for my 09 Tahoe Z71 5.3L. I have a Flowmaster Series 50 SUV muffler and Volant CAI. The motor seems to be running rich now due to the CAI. Wondering if one of the tunes on the 7194 or a Diablew tune can help fix this. Thanks for your input.

i have a same setup you have

i have a magnaflow cat back

after i install the volant CIA i feel like i lose some power and the motor seems unstable maybe running rich due to CAI.

i don't know what i have to do .

Regards

[06MonteSS]

check the stickies and do some data logging, adjust your slope to get your fueling adjusted correctly so that your average ltft's are in the 0 to -2 range...

[krom]

Hi Monte,

In another Q&A thread the member posted:

-- Can I make my own custom tunes (not just a modified tune)?

You said this is possible only if you are a dealer or authorized tuner with the software. I take it the exception is being able to adjust your injector slope so that you can bring the ltft's in range as you specify?

Thanks

[06MonteSS]

yes... that's considered a "modified tune"... you can modify the tune via the predator/trinity yourself...


a "custom tune" is done via the tuning software...


With the 7194 predator for your vehicle, you can do/adjust all of these things yourself, via the predator unit itself:

#
COT time delay
#
DoD disable
#
Idle RPM Drive/Neutral
#
Injector Slope adjustment
#
WOT Fuel 2k-3.8k / 4k-4.9k / 5k-7k
#
Rev Limit
#
WOT Spark (in degrees) 1k-3.8k / 4k-5k / 5.2k-7k
#
Fan adjustment, individual adjustment per temp dependent cell
#
Tire Size
#
Speed limit(truck/SUV only)
#
Clear codes supported
#
Live data and log supported

[krom]

Yes. I found that list on the product page. In addition to that, what is the custom tune able to provide?

[06MonteSS]

a custom tune, done by a diablosport CMR tuner such as myself, adjusts a lot more parameters that the end-user doesn't have available via the predator/trinity handheld unit...

the CMR tuning software is like hp tuners, efi live, etc etc and allows access to EVERYTHING in a tune file...

the fueling and timing adjustments can be done more precisely, instead of just a general range like the handheld has you do...

torque management settings, knock retard settings, throttle settings, WOT/PE settings, AFR settings, fueling, timing, and a whole slew of other things...

[krom]

Excellent. Thank you.