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So the short pulse adder is a compensation table for low PW, nonlinear flow from the injector. Looking back at it the name makes a lot more sense now. Can't wait to try out the corrected data on my...

What's the harm in zeroing out the 1+ area of the adder and leaving the rest as is? What is the purpose of the short pulse adder anyway? Came here after struggling with the spreadsheet on a gen 3...

Post another log and I'll take a look at it.

What cam is in it? Is your fuel pressure set correctly? No engine is ever going to have VE values lower than 50% in the idle and cruise areas. Set your High RPM Disable to 12000 rpm in the Dynamic...

Glad we could help :)

You were on the right track, just needed to put the same values in the high and low octane tables. 118686

I use an AEM 30-0300 and it's held up really well for the past 2 years I've had it. Did the tuner run the car with the converter locked?

DynoJet 248's did come with optional load control using the...

Turn off column lock.

Adaptive idle works once the ETC min is hit. Before that, all values to get your idle stable are in STIT and are not stored in the LTIT until the ETC is met. Log LTIT in gear, LTIT in p/n, and STIT....

DynoJet 248 has been around at least 15+ years and are pretty well established for being good dynos, any decently maintained 248 will give you solid numbers. There is no one AFR for max power, that's...

No it does not mean it’s at stoich, 450 mv is stoich. O2 readings are a really bad way to tune WOT, and you can grenade a motor doing so. Get a wideband, disable your O2s, and put it in one of your...

A shifted reluctor would cause timing and injector timing to be off, but to an extreme absolutely could cause a problem at higher rpm. The “window” for the crank to see the signal gets tighter with...

I don’t see how it could be valve float, it pulls solid. Do you notice the wave in the mass air flow hz? It’s a BTR stage 4 truck cam I know it’s making power up at 6500 rpm, it might be just...

The truck is now missing the 1-2 shift randomly. We lowered the shifts to 6500 rpm left the rev limiter at 7000, still cut out. SUPER interesting to note, we did a pull to the top of 3rd and as you...

Shnraines - I have the pressure test kit, that was also a thought I had. I do not log the shift solenoid signal, I will add that to the log. The truck can shift 2-3 at 6400 rpm just fine, so it’s...

Kevin - That worked for us, but only once. Got a solid pass, truck shifted firm, next pull it popped again but stayed running instead of turning off. I've seen this issue before with another friend's...

We're having issues with the 2-3 shift not happening on a friend/customer's truck. The 1-2 shift happens around 6700-6800 rpm, everything is scaled correctly: shift mph, shift rpm, gear, and tire...

Is the 7G Tronic transmission supported? I read from a W204 C63 and the OS for the TCM populated but the hardware doesn?t.

VE is how efficient the cylinder can breathe air at any given map value. With your injector data and a well tuned VE, the ecu knows how much fuel to spray at any given map value. In your VE, every...

I made quite a few changes to your tune to get you in the right direction. Under Airflow > Dynamic > High RPM Disable was set to 4000 RPM. Raised that to the max value so the MAP will always be used...

Hey, thanks for the suggestions, guys. The changes did help and the misfire counts did 0 out, but I still feel the truck is occasionally hunting for the timing still. I multiplied the low RPM...

My truck originally had the Mitsubishi style coils. I'm not sure what you mean by desensitized misfire detection, Kevin. Can you explain or post a link to this process? From what I've read this cam...

Confirmed. The the spark graph doesn't stay "steady" like other cammed and stock vehicles do. You can clearly hear the engine stumble on itself. To me, it seems like a trigger problem, like it gets...

As the title says, I have a P0300 for random misfire but only at idle. The truck is an '01 Silverado 4.8 with some mods done to it. I've chased this problem for longer than I'd like to admit, so here...