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Gm PCM Tune Up?

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Old Feb 9, 2004 | 07:29 PM
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Default Gm PCM Tune Up?

Hello Members,
I went to GMs Vehicle Calibration information sight and typed in my vin #s.
I have a 1998 TA and the upgrades came back as: Control Module Calibration, New calibration corrects setting of a false po103 maf code, and new calibration to correct the a/c compressor from cycling improperly during heavy acceleration. Has anyone had this upgrade done to their 98 Z or TA? Would be worth to do this even though my car runs fine? Our dealership charges 100.00 do the upgrade. I was wondering if i should just invest in LS1edit instead.
Thanks
Tom
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Old Feb 9, 2004 | 08:17 PM
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Originally Posted by Spooln
Hello Members,
I went to GMs Vehicle Calibration information sight and typed in my vin #s.
I have a 1998 TA and the upgrades came back as: Control Module Calibration, New calibration corrects setting of a false po103 maf code, and new calibration to correct the a/c compressor from cycling improperly during heavy acceleration. Has anyone had this upgrade done to their 98 Z or TA? Would be worth to do this even though my car runs fine? Our dealership charges 100.00 do the upgrade. I was wondering if i should just invest in LS1edit instead.
Thanks
Tom
You would need to get a copy of the updated program that GM has to be able to update it using a non GM tool.
Maybe a better approach if you want the upgraded program is to call some tuners in your area to see if they have read that program from a car and they 'might' flash it in as is cheaper than GM would.
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Old Feb 12, 2004 | 10:17 AM
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I wouldn't bother if the car is running fine. There is most likely little to nothing to be gained by it.

If you are looked for more power, get LS1 edit and find a dyno.

Good Luck
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Old Feb 15, 2004 | 09:16 AM
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The update stops the AC compressor from cycling under hard throttle. I went through 4 compressors in my 98.
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Old Feb 16, 2004 | 12:11 AM
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question

How much the the ls1 edit cost? Does it give any HP?
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