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With laptop on, Ignition on, Wideband on... Try plugging wideband serial in first. I've tried what you did above that makes no difference. I spent a lot of time figuring this out as there was no...

Plug in wideband serial first, then the hptuners.

I had the same issue that's how I resolved it.

Here is something I notice.

When I was tuning with the AEM WB (hooked up through a serial to USB adapter) to my laptop the AFR error was showing around 5 percent across the MAF error map and at...

Attached is a log file from when I was on my 3rd VE tuning log with the aem wideband...

I think I am going to try these. Can you point me in the right direction for the injector data?

I was a bit worried about this myself. I got them off ebay. Do you think this could be the culprit of all my problems?

What injector do you suggest for my setup? Its a daily driver type vehicle...

Map sensor is stock 2006 Chevy Silverado 5.3 AC Delco Part #12614970 70461

I'm using a sheet metal intake manifold with 102 tb from southwest performance (OEM GM IAC and TPS sensors).

When I...

Yes I did but I guess part of the problem is I don't know what it's "supposed" to look like. I'm not sure what I'm doing wrong. I'm essentially following this and goat rope garage tutorials on...

From searching a few threads there's some guys out there that believe that you should keep the VE table relatively close to what the afr error spits out. On the scanner I was showing less than 5...

Hello all,

I just finished tuning my VE and MAF tables via AFR % error with an AEM 30 wideband. From everything I read it said to tune with the engine warm. I am fairly new at this but have spent...

Thanks for your input. It took a lot of reading and watching videos but I finally understand what I'm doing.

I purchased a mail order tune which I regret but that was the only option at the time....

Thanks for the response. I've watched and read many tutorials but none of them actually highlight the process of tuning WOT.

One more question: if I'm running a hybrid setup with a maf I assume I...

Plug in aem USB first, then the HP tuners USB after.

Thanks. Makes sense as to keep airflow smooth as possible.

Do you guys prefer to use the afr error % in the scanner or manually change the hertz to get desired afr for maf?

I read every single post.

There's no clarification on the method of tuning MAF TABLE for WOT. Do you ease into the gas to reach the upper hrtz cells or do you go WOT to redline? Mixture of both?

Ok, can you help?

I know. I figure I reply to this one instead of starting a new thread.

Thanks for the clarification on the stft open loop.

OP, did you get an affirmative answer on this? I'm tuning my 5.3 truck right now and in the same boat. My thought is to tune VE up until 4k bc I plan on running the Maf still.

I dialed in the maf...

On my editor I have " STFT OPEN LOOP". While I'm tuning VE with Wideband do I want this on or off?

Thanks

When you dial on 3k, 4k, 5k, redline.... Does the throttle position matter? Are you doing 3k, 4k, 5k, and redline at WOT?

It's not too clear on most tutorials but what is the tuning strategy for a blended tune of sd and maf?

Do you keep it in maf only and work your way up to wot then tune the SD only under 4k rpms? ...

Found this info online that helped me get things more inline with a starting point. Previously I was inputting the IFR values at my vehicles base pressure of 50 psi. As soon as I changed it for base...

Hey guys,

I recently finished my 5.3 swap into a Land Rover Discovery 2. It utilizes the stock landrover transmission. All work was done by myself in my driveway including wiring and welding the...