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2007 GMC Sierra 5.3L, Controller PN 12614088

I was simply doing AFM delete on this truck and when it was done flashing the tune it gave a $06FF Checksum Failure error. Now there is no...

Thanks joecar! I will mess with it some more on Monday. After driving the truck around a little bit I can say that it already feels much better and seems to run stronger. I'm looking forward to...

Does this look better? Still heard a little knock and looks like a lot more fuel than before. Maybe a little too rich in some places.

Ahh yes, I had messed with those. I will re-do the log now.

Yeah, although I don't really understand what that pid is I was expecting it to do something different with the added fuel. Is it like the pcm's desired lambda or something?



Okay, I will

Here is another log I made after adjusting the MAF on the upper end. There was a bobble in the transition but fuel came in much better where I made adjustments. I will have to figure out how to...

Well the serial cable showed up tonight and I crimped the RJ11 connector on there and I'll be damned if it didn't work perfectly. It was easier than I expected so here is the log with the wideband...

Exhaust is in good condition. There isn't anything banging. It is definitely spark knock that I hear and it logged it when I heard it.

Also, after looking back and studying the log I noticed the LTFT's adding 9+% WOT and I'm thinking that is probably not normal (not sure). Is this an issue?

Here is a log without wideband. Still waiting on the serial cable for the LM-2. First WOT knock was very audible. There isn't a saw tooth pattern but it does appear that timing is being pulled...

I have been pouring through the forums trying to figure out the best way to get my LM-2 connected to the scanner so I can log A/F and have decided that serial connection is the best way to go. I...

Update: I have fixed the fuel pressure problem. I know have 58psi with reference hose disconnected. Truck is going into open loop under acceleration but still has some knock. Air/Fuel ratio stays...

Hmm, yes. I will investigate this. Could this cause no open loop though? Fuel trims are perfect even with high fuel pressure...

I don't have any logs to post at the moment and I didn't bring my laptop with me today so I will have to get them tomorrow. There is no oil in the PCV tubing and fuel pressure is 68psi with fpr...

Here is the tune

2001 Silverado 2500 6.0L stock work truck

For a while now I've been noticing knock during hard acceleration. I was thinking my fuel pump was starting to get weak and since I've never changed it...

Just did a full reflash and that seems to have fixed it. We'll see how it goes through this tank of diesel. Thanks

Originally it was a full flash. Maybe I should try it again? Pretty sure the OS is right.

I'm having problems with a fuel gauge on an 08 Dmax. When you fill the tank the gauge only reads 3/4. The gauge drops really quickly for the first half tank and then slowly after that. The low...

Thanks Zach, the books are great. Now I just need books like these for the gassers. Robert

Sure thing, i'm running a 2.8inch pulley. The cam is a custom cut nitrous cam: 226/232 .603/.609 111* (not a good blower cam 2.8 pulley would make more boost with a different cam). I've been 11.76...

Was at the track (drag strip) Saturday evening to practice launching my ole truck. Got a new personal best 60' time of 1.70sec and ET of 11.44. Previous best 60' was 1.77 and previous best et was...

Nice kit. Who makes it?

There is data on the cd for some ford injectors. I was wondering if there was some way to use it to get the data I need. I'll have to take a harder look.

After watching "Calibrated Success" i'm sure I don't have correct injector data. I've been searching the internet for some information on my injectors. I've checked links posted on here and can't...