Computer/ECM/PCM

Also see the sub pages on the left side.

Best OBD2 scanners on a budget:

• • Under $30: https://amzn.to/3d4gog3 when using the proper software(Car Gauge Pro does extended codes but is kinda dated DO NOT BUY), cheaper Android only version: https://amzn.to/2Z2dZKv

  • I used to recommend CAR GAUGE PRO as it handled the extended codes.  However, they abandoned the app that we paid for and now are offering a "new" app, which has horrible reviews.  That is some shady shit so whatever app you buy into, DO NOT BUY CAR GAUGE PRO.

  • Best ~$100 scanner: https://amzn.to/3aQy3Ff or https://amzn.to/2Z3M3pF without wifi, this is if you don't mind using a computer to run the Tech2Win software(think setting tire size/ABS bleed/etc).  Even so this is the one I recommend because of working with Tech2Win as well as with PCMHammer, etc.  Tech2Win supports 1991-2013 and even though they say you can't run it in a virtual machine, you can indeed.

  • Best $200+ is the Tech2 clone available from Asian sites like alibaba/express etc.

If you change segments, OS section or complete OS, write entire file, otherwise just write cal.

https://pcmhacking.net/forums/search.php?search_id=active_topics

For pre OBD2 http://tunerpro.net/

http://support.moates.net/92-95-4l60e-4l80e-tbi-trucks/

Hardware for Tuning

G1 Chip adapter and C2 27SF512 chip required to reprogram ECM

BURN2 Chip Programmer programs 27SF512 chips

ALDU1 with CABL1 required for datalogging

Ostrich2 required for real time tuning

APU1 AutoPROM All-in-one device works great, taking the place of BURN2, ALDU1+CABL1 and Ostrich2

Software for Tuning

These computers use the $0D, $0E, $31 or $E6 masks from the factory.  The $0D and $E6 are generally found on 4L60E trucks.  The $31 and $0E are generally found on 4L80E equipped trucks.

TunerPro RT + the $0D, $0E, $31 or $E6 definitions works for editing and datalogging.  (this is the recommended software.  It is included with the AutoProm)

TunerCat OBD1 tuner with the appropriate definition works for editing.

TTS Datamaster with the appropriate definition works for datalogging.

Recommended Hardware to Buy

G1 + BURN2 + C2 = most basic

G1 + BURN2 + C2 + ALDU1 w/ CABL1 = basic with logging capabilities

G1 + APU1 = Chip tune / realtime tune / datalog – full capabilities

G1 + APU1 + MTX-L = full capabilites with wideband logging

• https://tis2web.service.gm.com/tis2web

• https://pcmhacking.net/forums/search.php?search_id=active_topics

• http://www.gearhead-efi.com/

• http://www.superchevy.com/how-to/0704gm-factory-pcms/

• http://www.lsenginediy.com/tuning-software-equipment/

• http://www.lsenginediy.com/comparing-gen-iii-controllers/

• http://theblattners.com/Projects/TinyTuner/default.html

• http://theblattners.com/projects/tablemodifier/Default.html

• http://www.thirdgen.org/forums/diy-prom/696609-houston-we-have-reflash.html

• https://www.customecm.com/bench-harnesses/bench-harness-pinouts

Factory PCM List(not exhaustive):

4.3l

• 1986    1227747 or 1227137

• 1987    1227747 or 16144288

• 1988    1227747 or 16144288

• 1989    1227747 or 16144288

• 1989    1227747 or 16144288

• 1991    1227747 or 16144288

• 1992    16156647(cpi) or 16196392(cpi) or 16144288(tbi)

• 1993    16168625

• 1994    16168625

• 1995    16197427

• 1996    16244210

• 1997    16229684

• 1998    16250279 9355699 9366810

• 1999    16250279 16263494 9366810

• 2000    12200411 16263494

• 2001    12200411 16263494

• 2002    12200411

• 2003    12581565 12576106

• 2004    12586243 12587603

• 2005    12589452 12589462

Note: 92-95 TBI PCM/ECMs are largely interchangeable – as a rule of thumb, any of the 4 hardware boxes ( 16197427, 16196395, 16156930, 16168625 ) can run any of the 4 main masks ( $0D, $0E, $31 or $E6 ) BUT you will have issues using a V6 memcal for a V8 application or vise versa.  Your memcal MUST be from a vehicle that has the same number of cylinders as the engine you are trying to run.