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Any HP tuners on here? My car came with a locked Trifecta tuned PCM. I just recently swapped in a stock replacement PCM. After installing the stock PCM, my car has a very rough idle when you first...

Yeah My car is a 2009 Cobalt SS TC Sedan. Not sure if the sedan/coupe has anything to do with the PCM # being different then what you say? Everyone else I showed this too didn't say anything about...

Hey Guys.

Hopefully someone can shed some light on the issue I am having. A month ago I bought a completely stock 2009 Cobalt SS TC Sedan. I am the 2nd owner and the previous owner was an older...

The last time I used 2.23 it didn't seem to read error codes. It would say I have none yet I clearly have a light on my dash. After reinstalling and using 2.22, I saw the error code.

I use 2.23...

Alright so with some cars I still tune with 2.22. However with my car and others I have to use 2.23 beta. Well its sure getting annoying having to remove and reinstall these two different versions.
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I will try to make it as step by step as I can. I just wish I didn't work as much these days where I could spend the time to throw a decent guide together. I will try my best to make one up as soon...

Unless you car is enabled to reference the VE tables in your 3800, then there is no point in tuning the VE table in these cars. Now the LS V8 motors do use the VE table and those guys have to tune VE...

oakleafresin: Ideally you should put some custom filters into that histogram of yours. You should filter out decel and as well any AFR below 14.6 AFR. If not its going to make things harder for you....

Yup you are right.

Even if its commanding 11.7 the actual maybe far off.

Saw in my car and another buddies car that we were commanding 11.8 AFR however after a wideband was installed we were...

That's what I thought thanks.

Told the guy to fix his header leak first and see how it runs afterwards. If still crappy then throw some new 02 sensors in there.

After he gets that all fixed...

Do I just delete the error codes for the rear 02 sensors for that or is there someplace inside the actually bin I need to adjust to turn off the rear 02 sensors?

Thanks sir. I will let him know.

So if he fixes his header leak and also the 02 sensor problem it may go back to normal and the trims won't be so crazy again in the scan?

I had a feeling there was an issue with the 02 sensors.

For B1S1 and B2S1 which one is the pass side and which is the driver side?

I suspect B1S1 is driver and B1S2 is Passenger?

So is that...

I'm sorry there is no wideband hooked up to this car yet. You will notice in the scan it will say a WB is logging but that isn't right. I just forgot to disable that.

I updated the first post check it out with files now

Thanks I will scan the car tonight when I look at it.

Alright guys I got a few scans of his car last night.

This is for a 2002 LS1 Vette 6 speed. Current mods are zip tie mod for intake, headers, no cats, no egr or rear 02 sensors.

The thing runs...

This should be booked marked on the site here. Alot of people ask me how to wire up the PLX with Narrowband support and this guide certainly helps. Not sure if it applies to all cars but certainly...

I can tell you this. I can only use my wideband to tune my Maf for WOT 7625hz+. If I used my wideband to tune my idle/cruise maf hz range it would throw the fueling off.

So pretty much I use...

Alright with my own car and all the other Series II 3800's I just do a write calibration data only and within 30 seconds its done.

On my buddies 2008 GXP with the V8 I have to do a write entire or...

I acutally thought of doing that this week lol.

I now currently have my bin setup that 1st and 2nd WOT upshifts are zeroed out and work off the WOT RPM chart instead.

For the 3rd to 4th gear I...

I tried that along time ago and idk for some reason the car didn't seem to want to downshift as much as it does when you also have the WOT MPH table filled?

Also shot you a PM if you don't mind TiredGXP

Thanks will give it a shot.

A buddy of mine owns a 2008 Pontiac Grand Prix GXP with the 5.3 LS4 V8 motor in it. Well I tried hooking my scanner up too it with the config file I use on my car and of course things weren't'...