There are very few people reporting the pinging issue and there are lots of suspects as to the cause.

Timing, with some variants of the JKs PCM there could be too much timing advance.

Fuel, some fuel might not be delivering the octane as stated on the pump.

Spark Plugs, some aftermarket spark plugs might be hotter than the OEM plugs causing pre-ignition.

Ambient temperature, the net result of AIT sensor readings and air density could be placing more air through the throttle body causing a lean condition.

Elevation, thinner air at higher altitudes and misreads by sensors.

Humidity, low humidity will cause a slight air mass increase although only a minor consideration but will promote higher combustion temperatures which may result in pre-ignition.

Manifold pressure, improper reading of pressure by the MAP sensor could cause a lean condition.

O2 sensor, getting false reads from an O2 sensor could also cause a lean condition and pre-ignition.

Throttle Position Sensor, the throttle blade being open more than expected can cause too much air to enter the manifold.

While there is a lot of sensors that play a role in assuring proper fuel trim, part of the equation is still table based. So for every read there is a subsequent expected reaction and there is obviously a pretty long list of items that could be the underlying culprit. Some of these issues could be easily masked by the much more conservative stock timing advance.

In all, there are numerous things that could go into the pinging issues a few people are having and the remedy might not be something that can be fixed on the programmer side. For example an O2 sensor might be functioning well enough to not throw codes but may be degraded enough to not function properly. For lack of a better term, an O2 sensor might be lazy having a rich or lean bias.

One other thing is if these lean problems are occurring with after market spark plugs, there is a possibility that the replacement plug does not have the same heat range as the OEM plug. Each of the spark plug manufacturers have their own heat range designations and these heat range designations do not necessarily align themselves with the OEM plug. This is why Superchips recommends the OEM plugs so they are working with a known quantity, and anyone experiencing pre-ignition/pinging issues with after market plugs should revert to the OEM plugs.

 

Hey guys, I'm sure this has been answered earlier in the thread but I honestly don't have the time to read all 178 pages of it, so sorry for the repeat, but what are the advantages in terms of performance if using the Flashpaq with a manual transmission?

Thanks guys.

 

How do I see the Air Fuel Ratio?

Is it:
Data logging (ADVANCE)
Oxygen Sensors
B1-S1-Volts (Varying .050 - .705, WOT .840)
B1-S1-Trim (99.21%)
B1-S2-Volts (.705)
B1-S2-Trim
B2-S1-Volts (Varying .050 - .705, WOT .840)
B2-S1-Trim
B2-S2-Volts (.745)
B2-S2-Trim

What is B1-S1-Trim (99.21%)?

I got this:
Sensor output ranges from 0.2 volts (lean) to 0.8 volts (rich). A perfectly balanced or "stoichiometric" fuel mixture of 14.7 parts of air to 1 part of fuel gives an average reading of around 0.45 volts.
So this means I am still running rich?

 

Do I need to tune with 87 or performance tune before I can use the Advanced trans tune or can it be used on its own?

I would love to test it but as I am getting ping I would like to stay on stock while doing this.

 

I just bought one off fleabay, it update & worked beautifully.
Seat of the pants, feels a little peppier. The real judge will be the wife, this is her daily driver & I'll have to wait until after her normal commute tomorrow to see what she says.

 

So, I have the Superchip 91 octane program installed on my Jk and I'm digging the low end power increase, until I'm leaving the mall with my Mom and Daughter, when I start my motor, the headlights come on and the wipers start going!! On their own! Turn signals stop working too. I kill the motor and restart, Jeep still thinks it's dark and raining out. So, I drive all the way to Mom's house with the wipers going, got some weird looks along the way, once I get there I disconnect the battery for a few minutes and then reconnect it and everything's fine. Just curious if anyone's heard of this happening??

 

Mine did that one time too. Update the flashpaq on the web and re-install the 91 tune. I did that and havent had the problem since.

 

I have updated the thread on the pinging issue with some new info: https://www.jk-forum.com/forums/show...hlight=pinging

Scott

 

I decided to get the Advance Trans Tuning

Got some time on my hands to play with it.
Read all the Ram Hemi and Commander posts on the Net.

Will start with the Superchips settings to get a feel for it and then work from there

 

looking forward to your results