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What?s even the point of using AFR then? Shouldn?t it all be in Lambda? I tune it to run lambda 1, it doesn?t care if I use e10 or e30, lambda is still 1, so I am just adjusting fueling to whatever...

So it looks like I have my formula already set up for Lambda (not AFR) with my AEM wideband logging. Using the .1622*volts+.4990. So my lambda reading is at 1 for stoic regardless of what fuel I am...

Got it, so instead of changing stoichiometry to 14.1 got to change my lambda/eq to .96? So then 14.7x.96=14.112 and that will give me my desired AFR. And that?s under EQ ratio where my STFT is also?

Trying to tune for 14.1 AFR, changed my Stoichiometry to 14.12 and my equivalence ratio commanded displays as 14.12 in VCM scanner, but my math seems to be wrong, because at 14.2 on my wideband it...

Ordered new Delphi sensors, have a few wiring harnesses to try too.

So does the low voltage mean knock or issue with the sensors??

Drove the truck again and it has two codes pending for knock sensors. P0332 and P0327 low voltage. Power is good until codes pop up. It has new sensors (Dorman) torqued to spec and new pigtail. I...

Oh also my return to idle in Park or Neutral is very slow - another reason I suspect the throttle body. This does have a 4L80e and the HD torque converter

I just had one out the yesterday when I was doing the exhaust, good thing I lubed up those slip joints, will be easy to pull apart. This does have the heavy duty and very large catalytic converters...

I should also mention that it behaved similarly during my VE tuning a long time ago. Felt like the RPM ramp was slowed and the horsepower just wasn?t there. Now I?m wondering if I should be looking...

Cut out of the OE muffler (dual inlet/outlet 3? on 2500 HD) and replaced it with dual glass packs yesterday and ran like a scalded cat. Was doing a pull on the highway and hit ~100 at WOT in 3rd and...

Would you suggest maxing it out or putting in something similar to the minimum values at stock idle? I shifted everything to the max under my idle (32767) to 800 rpm and then mimicked the table that...

:doh: well I guess you don't know the things you don't know. I will try this. Wait, is this also why my torque converter never feels like it goes into lockup on the highway?

Most of my misfire...

have a 6.0 with 706 heads and BTR Truck Norris (212/22X, .552/.552, 107 LSA) cam in a 2500HD, 10.5:1 compression, stock manifolds, 50 lb/hr injectors and tuned VE and MAF. Truck has consistently had...

Yeah, for a tuning noob that?s really obvious! I see this is very similar to the other forums I have been on and now I remember why I stopped using those as well. No hate toward you guys, but being...

AEM might, but HP tuners says ?Please ensure your vehicle is CAN-based, as this is required for this product to function.? And that is super obvious to someone who has never tuned before. I...

Why would they not mention any of this on their website (hptuners) for this AFR gauge? It talks about all the compatibility and nothing about needing to hardwire it.

Have an AEM 30-0334 and MPVI3 and I am not seeing OBD Controller Unknown under my channel list and can't get any of the info into my scanner for logging. ECU is a P59 from a 2005 2500HD. Anyone run...