I have a 6e maf setup and I am wondering if I can some how hook a wide band o2 to the stock computer and have it tune itself on the fly while running WOT and part throttle. Do they make a software hack for this?

 

SDalt404, tuning on the fly or tuning at all is via software, not a hack for the .bin (code) being read by the ecm. Alot of use various offerings from Moates.net. I myself use Tunerpro RT (RT is Real Time) and an Ostrich (ECM Emulator). The emulator takes the place of an actual chip in my case.

WB02's can be used in stock ecms. Mine is plugged right into the back of one of the wiring harness connectors going to the ecm. However I'm only familiar with and speaking abou the 749 and 730 ECM's, your type (165 I think) is different. Look into EBL here in this forum and I think thats what you will be looking at probably using. Please, anyone who sees or knows I'm wrong step in.

 

AC: So your ECM can output the wideband info via ALDL? I'd be VERY interested if this is possible with the '165 (Either via codehack on an extra A/D input in the ECU or some stock workaround), as it would save me about $50 of having to get an external converter to plug into my laptop.

 

Malcom, again, I don't want to really speak for the 165 but if you search for EBL I think you'll find alot of info. For 730 & 749 Ecm's yes the ALDL will output WB02 data, IF you're using the CORRECT equipment, .bin and definition files. My case, 730 Stock ECM, Innovative WB02 with the output going directly to pin F14, Tunerpro RT, the $59 Code and correct .xdf (definition file). The definition and code have been edited to include this functionality.

 

I can understand how helpful that is to tune, but that still seems terribly ineffeicient. Is there a way to run system that with tune itself based on a wbo2?

 

For the -165(all ECM's) you "can" use the WBO2 signal for a sort of autotune.

If your WBO2 has a prg. output you can program it to simulate a narrowband O2 sensor. Just program the WBO2 to send say 500mV (depending on what mV the *.bin is trying to get) when its at 14.7 and your BLM/INT will try to achive that. Only for Closed loop and not WOT. Go to Innovates homepage and read their manual, its described there.

Otherwise I dont know of any code modified for the -165 ECM to read WBO" through ALDL....

/N.

 

I think to do what you are trying to accomplish, you're going to need a much different ECM/PCM. There aren't that many production cars that use *just* a wideband, and those that do are Honda's and other imports. (As far as I know)

It sounds like you want the ECM to read the WB input, than calculate or adjust the VE tables in real time. If I'm wrong, let me know. I just don't feel there is a factory or aftermarket solution for this. I've been wrong before though......

I do beleive Accell sells a ECM/Harness and software that utilizes a WB, but you still need to adjust the tables manually.

This is obviously way above my head, but it would be nice if there was an ECM upgrade that would relearn itself based on a WB setup

-jason

 

That is exactly what I am trying to do. Think about it. A tune for a particular day might work great, but tommorrow it might be slightly out of adjustment. For any number of reasons.

I am surprised they don't have some sort of piggey back computer that emulates a prom and adjusts tables on the fly. I know you can emulate with an autoprom. So I would assume it would be possible to perminately wire up an autoprom like device that took an input from a wide band and made adjustments on its own. All you need to do is hook it to a pc and set AFR tables and what not then plug it back into the car. You could even throw different cams in there and it would tune itself.... Well I can dream right. lol

 

Check out www.dynamicefi.com

/N.

 

If I am not mistaken thats only for tbi. I emailed them just to be safe though. I also didn't notice on there anything about wb02.

I bet you there is something out there to do this. With all this technology that we have it would be a crime not to have this ability.

 

You can use the EBL on TPI if you upgrade the ECM to fire the injectors once per revolution.

/N.

 

Hrmmmm $400 and it basically tunes itself huh?

Man, thats less than I've spent on my tuning stuff over the years

-jason

 

Long story short after reading what I think is you're ultimate goal. The answer is no. Nothing that will plug in stock will autotune itself. No hacks, no add-on, or "upgrade". I don't even think the FAST systems autotune.

 

Actually with the setup you have the stock 165 maf ecm does "autotune" itself and is very forgiving to light modifications to the engine. The only thing I see that could be a problem for the ecm is the fact you have 24 lb injectors and the ecm thinks you have 19 lb for a 5.0 or 22 for a 5.7 depending on which engine came stock in the car.

I ran my car for 3 years with a 270/276 cam and flat top pistons and had great power with 25/26 mpg on the highway. This was not the best tune for max power but it was still better than the stock engine. I didn't start screwing with the chip untill I changed the throttle body, injectors,afpr and modified the MAF sensor.

SDalt404, How does your car run now? If its running rich you could back off a little on your fuel pressure or put smaller injectors in.

Again, the MAF system is much more forgiving than the SD system. The reason for this is the fact that it measures the air as it enters the engine and not just how much vacuum its pulling.

What I have posted here was from my experience with my 89 TPI MAF Camaro and I was very happy with the way it performed. I hope to have the new engine back in the car in a week or so and TUNING SCHOOL will be back in session for me after 2 years of looking at it sitting in the back yard with a blown engine.

Dewayne