Me78569

Yea I am unsure on why some guys have idle PSI now all of the sudden I am guessing it is the colder temps, but I am not seeing the change on my truck. I am still mulling it over, but NOTHING changed in the code for calculation of Boost since a few weeks before the issue popped up. I think it is an outside source causing it. Maybe alternator V being higher is causing a slight scew in Map output? I dunno.

However remember that once you trigger the high idle mode in the ECM the only way to get out of that mode is for ECT to reach ~170 or for the truck to be off for 30 seconds. You can flip it to mpg mode on the fly and it will be in fooler mode but if you let the truck idle again it will go back into high idle mode. The switch only triggers a mode, it cannot cancel the mode.

Looking good, I am happy to hear that a 12" extention was enough.

The more numb / lazy your tune is at cruise makes the cruise control work better. Typically if you have bigger than stock injectors your cruise area of your tune should be below %100 in order to prevent cruise control from jumping. Remember under %100 means you have more resolution in the fueling range compared to stock. If the ECM asks for a %5 bump in fueling to keep speed your message will be greater than %5 thus you get the jump. Above %100 means you have less resolution in the fueling range compared to stock.

Lvl 0 or OEM tuning will show a huge dip in timing as TPS comes up. You will watch timing drop to nearly 12* when TPS is at 25-30% while at cruise. Above lvl 0 There is ALOT of code in the quad to set cruise state timing near what the user what's it at. Cruise timing addition is the variable you set in the custom tune. Setting this at 3.5* will result in approx 20* at cruise. The quad uses multiple maps to use based upon what situation you are in. In order for the quad to see cruise state TPS and mph need to be semi stable between 45-80 mph when TPS is between 12-35% . Too much TPS or mph movement will cause the quad to jump out of cruise state timing and revert back to normal timing. Now when at cruise state the ECM timing still "pulls" on cruise state timing as a safety feature. That is why you are seeing what you are in the logs. The reason why decreasing throttle = lower timing is because the quad jumps out of cruise timing state. Timing cruise state doesn't rely on boost.

The page shows how to load it on 10 but the steps are similar for Windows 7 and 8. If you have flashed a tune before it will work without troubles.

You don't need windows 10 for the new tunes.

The truck needs to cycle power before the settings apply, I think. Did you do this?

I really need to get my air tools setup so I can use a stupid impact wrench to tighten all the cointrols arms etc.

Too add to this, I feel like it is mostly on the passenger front side. It seems to be fine some days and worst others. the truck seems to "side step" on really rough bumps where the clunk is worst. compared to @CSM truck my steering is also much less stiff, but I also don't have a dampener

No WTS light is the dead sign for the ecm, but we have to remember that the Juice recieves info from the ecm directly. So the ECM can't be %100 dead. No lift pump blip is another sign of the death of the ecm. Do a cluster test to verify that your WTS actually works.

My math was off 3.55's are about right for those revs If timing is coming down to 15-18* at 70 then you must have a ton of load, I might try to beef up your tune a bit to get load down and timing back up.

Good to hear

at those speeds with 4:10's I am thinking that 20mpg is pretty good. for my truck ~19.5-20* timing seems to net the most mpg.

I have been spending some more time tuning. I now have a more aggressive DD tune, I only get haze, which is more than before but still only haze.. The perk of the new tune is a good bit more offline go. I am still sure I could pass emissions with this tune.

What speed are your cruising at? what rpm? Etc

Yep you have that right, ECM timing seems to be purely related to RPM, if you do some data logging on lvl 0 you will see this. Timing stays pretty low until ~2300-2400 rpm. The Quad advances and pulls based upon a number of different axises. but generally speaking boost is important to the Quad for timing. Think of it as related to boost when you are tuning your settings.

@xxTJRocksxx Scaling tutorial so imagine that timing increases on a linear basis in relation to boost( it doesn't but for explaining it is easier to think of it that way) We will do 2 made up tunes to compare, only looking at timing Tune 1: Timing Max: 8* Timing Scaling: 100% scaling Tune 2: Timing Max: 15* Timing Scaling: %53 For Tune 1 you will get a max of 8* ( 8 X %100) = 8 or (8 x 1) = 8* For Tune 2 you will get a max of 8* ( 15 x %53) = 8 or (15 x .53) = 8* so you can see that max timing is the same between those 2 tunes. Now how the scaling works is it sets a upper limit for timing that = whatever you have set from above, but before that limit is reached the timing will ramp up as if it was going to 15*. So lets look at what happens if the map says we need %20 of max timing. Tune 1 at %20: 8* x %20 = 1.6* Tune 2 at %20: 15* x %20 = 3* So at the same point in the map you are getting nearly 2x the timing with tune 2 So lets look at what happens when the map says %50 is needed Tune 1 at %50: 8* x %50 = 4* Tune 2 at %50: 15* x %50 = 7.5* Again you can see tune 2 has nearly 2 times the timing addtion So lastly lets look at what happens when the map calls for %75 Tune 1 at %75: 8* x %75 = 6* Tune 2 at %75: 15* x %75 = 11.25....... BUT 11.25 is greater than the max scaling % allows for from above in RED so the Quad will only allow *8 from above So lets look at a pretty graph to show the same thing Different numbers but you see how the red line increases faster until it hits max timing, which is always (Timing max x scaling %) Does that clear it up?

Yea pin 7 does require a pull up, forgot about that.

@Dynamic Ever seen any info on rotary valves?

Scan for codes using a code reader the 1693 is telling you there is another code stored in the ecm.

@CSM might want it.

I would scan for codes, you can have them without the CEL being on. I would pull the power puck off and return the truck to %100 stock. I am assuming your fuel pressure gauge is reading 25?

Swed's haha. Germans hat.

No changes to the boost read were done. I am guessing temp is playing a role in how the map sensor is reading. Warm up mode has not been touched, I am assuming you just need to reapply the setting from the phone app. Keep in mind that you need to turn off the truck for the quad to put it in warmup mode again. Once the temp is reached once during running warm up mode is canceled until power is cycled. It's likely loaded correct. @Quadzilla Power I am really digging the new page. Edit: I found another Bug from the old days of Quad. I fixed it today. Timing is increasing as we would expect when using timing numbers above 10* Not a big bug, but @TFaoro was pointing out to me that timing numbers were not making sense. Issue was the base tune was limiting timing max to 10* but the app was allowing 15*. 15 might seem like a lot, but if you use the scaling function to limit upper end timing you can limit max timing increase to 8* but have a timing curve that looks VERY similar to the Smarty timing. Setting max timing to 15* and scaling to 55% will give you a max of 8.25 * timing but 16-17* of timing at 10-15 psi of boost. Anyone running the V2 stuff should ask questions about how the scaling works if they don't understand. The Scaling function is a VERY useful tuning item.