Read HPTuners Tune with EFILive. 2 Bar

[joecar]

Did you read out the tune from the PCM using V8...?

If so, then open the tune file using V7 and save it (overwrite the file).

Then flash using the V7 tunetool (but for Corvette, make sure you disable other modules that would chatter on the bus)...


hold on a sec, let me find out more about this...

[Blacky]

I was going to try immediately flash the PCM with the same Calibration that I read (it already had the 12212156 Program in it) and I got the following WARNING message I don't recall seeing before. (What does it mean? Is it OK to Flash the PCM or is there something wrong and I'm about to risk trashing it?)

That warning applies to vehicles fitted with electronic throttle control (ETC). If you took a tune from a cable throttle vehicle and flashed it into an ETC vehicle without first opening and saving the tune file using the V7 software then the throttle tables may be incorrect and the target PCM could be reduced to limp mode permanently.

By opening and re-saving the file using the V7 software the throttle tables are validated and updated (if necessary) for ETC operation. If you are flashing into a cable throttle vehicle or if you have opened and re-saved the file using V7 then you can ignore that warning.

The warning will exist in V8 until editing is enabled. Without editing enabled, the V8 software is not able to perform the necessary throttle table validation and/or updates.

Regards
Paul

[Black LS1 T/A]

That warning applies to vehicles fitted with electronic throttle control (ETC). If you took a tune from a cable throttle vehicle and flashed it into an ETC vehicle without first opening and saving the tune file using the V7 software then the throttle tables may be incorrect and the target PCM could be reduced to limp mode permanently.

By opening and re-saving the file using the V7 software the throttle tables are validated and updated (if necessary) for ETC operation. If you are flashing into a cable throttle vehicle or if you have opened and re-saved the file using V7 then you can ignore that warning.

The warning will exist in V8 until editing is enabled. Without editing enabled, the V8 software is not able to perform the necessary throttle table validation and/or updates.

Regards
Paul

Whew! ... want to make sure I get this right.

I had saved it, but not actually closed it and opened it back up. Since I have edited a copy of it and and re-saved it a couple times already, from what I understand, when I re-open it, this issue is not a danger?
I will also re-open the Original Program that was read from the PCM, and save it again, so if I have to revert to it, I won't be in that situation.

Thanks!

[Black LS1 T/A]

... (but for Corvette, make sure you disable other modules that would chatter on the bus)...

I bought the PCM from Flashmasters out of Cinti, OH and since it had the correct OS in it (12212156), I didn't use the base file from tunefiledepot. I did grab the 2002 Express Van OS.

Maybe I should start over and use the base file from the site, swap in the Express Van Fuel Segment, and recopy the fuel system parameters, fuel gauge calibration and Convert sender to volume tables back from the Camaro/Firebird base file as ChipsByAl mentioned?

Also, the tuner emailed the HPTuners file to me today.

[joecar]

Whew! ... want to make sure I get this right.

I had saved it, but not actually closed it and opened it back up. Since I have edited a copy of it and and re-saved it a couple times already, from what I understand, when I re-open it, this issue is not a danger?

Yes, correct.

I will also re-open the Original Program that was read from the PCM, and save it again, so if I have to revert to it, I won't be in that situation.

Good idea.


For all my LS1B stuff I use the V7 tunetool to read and flash the PCM (for now, until the V8 tunetool comes out).


C5 Corvette's have the BCM, radio, suspension, climate and a few other modules also on the bus; these may easily want to talk (e.g. BCM says something if you open the door).

4th gen Camaro/Firebird have the BCM isolated from the bus (was GM thinking this would be handy for flashing the PCM...?).

[Black LS1 T/A]

Thanks, jocar. I have transferred everything from the 1998 Calibration to the Base 2002 Calibration but the Engine Calibration. Working on that now.

[Black LS1 T/A]

I performed a Full Flash of the 2002 Camaro OS w/Express Van Fuel Segment copied over. (I did not know how to treat values that were beyond the 1998 table ranges. I capped it at 15.9 gal, for instance, for the rest of the cells in F0507 when the Value would have exceeded what was in the Camaro/TA tunes.)

The car cranked and ran, though it would not idle below about 1200 RPMs (granted, I did not give it a chance to warm up.)
It sounded normal.

I had the scanner up with the default PIDsand noticed that MAP was not moving and the Fuel gauge reads EMPTY. So, I guess I screwed at least two of these pin locations up (or didn't do the values for the Fuel System Segment correctly).

(Any advice how to troubleshot and correct without me trying 4 to randomly swap these 4 wires around would be good.)

64	GRA	416	MAP Sensor 5V reference Pin "C"
65	GRA	705	EGR Valve 5V Reference Pin "D"
66	GRA	474	AC Press Sensor 5V Reference Pin "B"
67	GRA	598	Fuel tank Pressure Sensor 5V Reference

Thanks!

[Black LS1 T/A]

I can give you the base file I came up with, and the HP file, if you want to take a look at it.

[joecar]

I performed a Full Flash of the 2002 Camaro OS w/Express Van Fuel Segment copied over. (I did not know how to treat values that were beyond the 1998 table ranges. I capped it at 15.9 gal, for instance, for the rest of the cells in F0507 when the Value would have exceeded what was in the Camaro/TA tunes.)

The car cranked and ran, though it would not idle below about 1200 RPMs (granted, I did not give it a chance to warm up.)
It sounded normal.

I had the scanner up with the default PIDsand noticed that MAP was not moving and the Fuel gauge reads EMPTY. So, I guess I screwed at least two of these pin locations up (or didn't do the values for the Fuel System Segment correctly).

(Any advice how to troubleshot and correct without me trying 4 to randomly swap these 4 wires around would be good.)

64	GRA	416	MAP Sensor 5V reference Pin "C"
65	GRA	705	EGR Valve 5V Reference Pin "D"
66	GRA	474	AC Press Sensor 5V Reference Pin "B"
67	GRA	598	Fuel tank Pressure Sensor 5V Reference

Thanks!

We'll figure out what to do with those cells.

It cranks/runs, good job

We'll have to figure out MAP (PCM needs this to run engine) and the fuel level.

Attached is 2001 PCM wiring diagram, see if you can match up those gray wires (you may have to locate what is at the other end of each of your gray wires).

I can give you the base file I came up with, and the HP file, if you want to take a look at it.

Sure, I'll take a look (extra pair of eyes to sanity check).

[Black LS1 T/A]

Thanks. Can you check your Private Message. I don't mind posting my tune. But, I don't want the shop to feel some kinda way about posting theirs.