Electronic Caveman!!!

[Scooterwrench]

No, it uses an NBO2. There is a way to tune with a WBO2 by setting it up so you can see it in your data log, then tune manually, not like the EBL.


Yes. You can get an Emulator installed to tune/modify your .bin real time.

So if I install the Emulator I can read and change on the fly?

 

[PlayingWithTBI]

Seems these PCM's were used for the 4L60E and 4L80E tranny's,will I be able to use it for the 4L60/700R4 or the NV3500 if I decide to go that way?

Yes, there are .bins available for those too.

16197427 PCM Information $0D

16197427 PCM Information $0DThis PCM was used in 1994 - 1995 C/K Truck, Van, S-10, 4.3L, 5.7L & 7.4L The 16197427 came in many trucks and can run $31, $0D, $0E, $E6 mask. Click Here for thread on changing a 1227747 ECM to 16197427 PCM Pin by Pin! Click Here for long thread discussing...

www.gearhead-efi.com

So if I install the Emulator I can read and change on the fly?

Yes, if you can find one, they're around for sale. Since Moates went dark there aren't too many choices around. Here's a new site that's taking on the challenges of producing these.

BoostedNW.com

BoostedNW - Your source for the latest obd1 tuning essentials

boostednw.com

 

[Scooterwrench]

Been thinking about that emulator. I'm not coordinated enough to even talk on the phone while driving,don't think I need to be playing with a computer and driving the truck too. I think datalogging would be better for my dumb ass. Come back to the house,see what it did and change what I think would make it better,more efficient.
The WB02 needs a controller?

 

[PlayingWithTBI]

The WB02 needs a controller?

Yeah, this is what I have on mine. I don't need a gauge since I can see AFR on my WUD (What's Up Display) with the EBL.

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[Scooterwrench]

Yeah, this is what I have on mine. I don't need a gauge since I can see AFR on my WUD (What's Up Display) with the EBL.

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Does that wire into the ECM? My thought is using a WB02 connected to the ECM would make faster,more accurate STerm fuel corrections.

 

[PlayingWithTBI]

Does that wire into the ECM? My thought is using a WB02 connected to the ECM would make faster,more accurate STerm fuel corrections.

It does with the EBL. I can run "Learn VE" with it instead of the NBO2. You have to do it manually on the 7427 or 7747. They aren't equipped to "read" the 0-5V signal, just the 0-1V NBO2.

Edit: I also run normally with the WBO2 in CL too.

 

[Scooterwrench]

I'm surprised someone hasn't made a convertor to change the 0-5V signal to a 0-1V signal that the ECM could read. Think it could be as simple as a resistor?

 

[PlayingWithTBI]

I'm surprised someone hasn't made a convertor to change the 0-5V signal to a 0-1V signal that the ECM could read. Think it could be as simple as a resistor?

The problem is, the NBO2 is primarily just a switch. When your exhaust goes above Stoich (>.450V) the ECM thinks your AFR is rich and tries to lean out the mixture, and visa versa. With the WBO2 you're targeting Lambda, not lean/rich. 0v = 7.35, 5v = 22.39 AFR (the opposite of the NBO2 - the higher the voltage, the leaner it is) on the one I posted. So, as an example, I wanna got 16.5 AFR when driving Lean Cruise. With the WBO2, I know when it's there. With the NBO2 I'm guessing. When in Closed Loop, my cAFR will level off quicker with the WBO2 while INT/BLM can take a while before getting close.

As an example, I have my target AFR set to 14.5. On the right side, note cAFR: and WB: apposed to INT/BLM. IIRC it took about 15 minutes for INT/BLM to level off running in Closed Loop. It shouldn't take that long. Evidently my VE tables weren't dialed in yet.

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In PE (Performance Enhancement), based on TPS Position, I target 12.3 - 13.3 AFR depending on RPMs and the ECM will shoot for it immediately. Without the WBO2 you pretty much have to rely on your VE tables.

You must be registered for see images attach

 

[Scooterwrench]

So you're using your WB02 to monitor your AFR and your ECM is making corrections off the NB02 signal?

 

[PlayingWithTBI]

So you're using your WB02 to monitor your AFR and your ECM is making corrections off the NB02 signal?

Not with the EBL, it uses the WBO2 as a primary. With the 7747 and 7427 you'll use it to monitor.

I really don't need the NBO2 but, since I have it, some day I'll probably pull the WBO2 and use it somewhere else.