Search:

With many thanks to all of you, and no thanks to my busy schedule, I'm pleased to say that I've finally gotten the tune ball rolling. We have 8" of snow on the ground and I have no dyno, so I've only...

Yes, I'm familiar with the C button -- you'll note that I mentioned it in the post you're replying to; I plan to filter out anything with C<100.

Here's the thing which I was asking and which you...

Looked again and now I think I see -- I just have to copy the bottom four values from the calculator into rows 13-16 of the spreadsheet. Then which row(s) do I copy into the tune, and where does it...

Okay, I've done everything except the injector timing. I'm not sure which numbers from the Summit calculator go where in the spreadsheet...?

141279

I already have DFCO and PE disabled. I've just turned off COT as well. I am not planning on using WOT as it's currently too cold to drive the car anywhere (below safe temps for summer tires) -- I'm...

I got the injector data I used from post #2 in this thread. Someone had already plugged the data into the spreadsheet and converted it.

Cam timing calculator results:

141273

Okay, so, putting everything in this thread together, here's my to-do list. Please let me know if I missed anything:

* Fix injector data (details TBD)
* Set MinPulse to 0.729
* Set Min fuel...

You've got that backwards...The MAF is being used when RPM exceeds 4k...or in your case 200rpm. However...the ECM does refer to the VE for transient fuel calcs. If you enter 0 in the MAF high freq...

Followup questions, to boost my understanding of how the system works:

I'm under the impression that, normally, the VE table is used when the MAF is not operational or when RPM exceeds 4000.

I...

Thanks for digging in and checking that stuff!


That does appear to be the right injector p/n. I'll copy that data.


Where does 31.12 come from?


Oh, I didn't even know this was a thing!...

They're both a riot, but very different. The Z28 is my personal preference, although the engine swap has been in the works for a long time and I haven't driven it in years! (I did back it out of the...

For context: I am a first-time hobbyist tuner, working on tuning a cammed, 24x LS3 in my 2002 Z28 with a P01/0411 loaded with the RTT OS. I have applied the correct injector data, configured the...

Yep, that's what I had in mind, same as what people do to monitor a wideband via the EGR circuit.

It seems like I can use the transmission fluid temp (TFT) circuit, but I think that's the only...

The pinouts are coming from the factory 2002 F-body service manual. Except for EGR; I pulled those from the 2000 manual.

Yep, thanks -- that's what I had just figured out. The "switch" ones appear to be off the table. :(

Turns out the fluid pressure switches are just that -- switches. They're either on or off, and they use ignition voltage. Thinking I probably can't use those.

Also thinking TFT might not work...

And, from the 2000 Service manual, here's EGR:

Blue Connector:


Pin
Wire Color
Circuit
Description

Found the equivalent diagram on the PCM side: 140226 <-- PDF with complete 2002 F-body pinout!

Red Connector:


Pin
Wire Color
Circuit
Description

Found this in the factory service manual, showing the pinout of the automatic transmission wiring harness: 140224

Here's the engine-side of the connector:
140227



Pin
Wire Color
Circuit

Also found this: https://lt1swap.com/99-02_vortec_pcm.htm

PRND A / B / C seem promising. I assume those are the same as the "transmission range switch signals" listed above.

Found this thread at PCMHacking.net, which discusses 0411 pinouts, but is not F-body specific.

These two were consistent across both platforms shown in that thread:
PIN 17 - Dark Blue - Circuit...

'02 Z28 M6, 0411 PCM.

I know that the EGR circuit is unused on '01-02 F-bodies and '01-03 Corvettes. I'm planning on using that for my wideband. But there are a few other things I'd like to add...

I'm curious if the HPT folks have any update here. It's been more than seven years and two major versions. :)

If this is still difficult to implement, I'll offer some suggestions:
1. In addition...

Sorry, I only meant that as a shorthand to refer to the issue you described. :)


I only found one:...