This is a list of computer locations, and some example 3 or 4 letter codes. These are purely examples as our database of codes is far to big to list them all. If your box code is not listed here it doesn't mean we cannot make a chip, simply email us, give us a call at 403-377-2277 or fax us at 403-377-2270 (24 hours)--have your code ready !

WHAT FOUR LETTER CODE DO WE NEED FOR THE PROM or MEMCAL?
Click HERE to view diagram (click on lower right corner icon to enlarge)

Check the Instructions Page for easy PROM and Memcal removal procedures and installation. Some performance memcals will be piggy backed to an adapter. Pay attention to installation procedures--and always use this page as a guideline.

Vehicle Box Location Example Codes
Buick Century Behind the glove box BDYC (Memcal or PROM)
Buick Electra Behind the glove box 4 letters beginning with A or B
Buick Grand National Passenger side kick panel BBKJ
Buick Le Sabre Behind the glove box -- remove under dash panel to access 4 letters beginning with A or B
Buick Park Ave Behind the glove box 4 letters beginning with A or B
Buick Reatta Behind the glove box 4 letters beginning with A or B
Buick Regal Pre 94 Passenger kick panel Post 94 Under hood AXDN, ASHZ, AZKJ, AJSA
Buick Riviera Behind the glove box 4 letters beginning with A or B
Buick Road Master Behind the glove box 4 letters beginning with A or B
Buick Sky Hawk Behind the glove box 4 letters beginning with A or B
Buick Skylark Behind the glove box 4 letters beginning with A or B
Cadillac and Northstar Under the dash towards firewall on passenger side AZYD, BBAW, BCRN, AZCY
1987-1995 Chevy Astro Van Passenger side kick panel 4 letters beginning with A or B
Chevy Beretta Under the dash passenger side AMAN, AJAB, ATDS, ACSY
1987-1995 Chevy Blazer V6 Behind Glovebox-Under Hood Flash (1994-1995) BARL, AMRU, ACTW, ANRW
1987-1995 Chevy Blazer V8 Behind Glovebox BARL, AMRU, ACTW, ANRW
Chevy Camaro Pre 1994 Under the dash passenger side ACXT, ANTT, BDLD, BDLF
Chevy Camaro 1994-1995 Under the hood passenger side VIN Needed
Chevy Camaro 1996-2002 Under the hood passenger side VIN Needed
Chevy Caprice Under the hood drivers side/Under dash Pass side. BKNF, BKBW, ATYR
Chevy Cavalier Under the hood passenger side BATX, AXDU, AXDY
Chevy Celebrity Behind the glove box 4 letters beginning with A or B
Chevy CK 1500, 2500, 3500 Behind the glove box 1987-1995 -- remove glove box liner, remove electrical connectors, slide ECM to the left and out ANLW, ASDU, ASDX, BDJL, BJYL, etc...
Chevy Corsica Behind the glove box 4 letters beginning with A or B
Chevy Corvette Passenger side under the dash AXCR, BAFL, BAFN
Chevy Express Behind the glove box 4 letters beginning with A or B
Chevy Impala SS Under the hood behind drivers headlight BLPR, BSDS, BCSY
Chevy Lumina Under the hood passenger side BFRS, BHAK, AUBU
Chevy or Pontiac F body Under passenger side dash 1986-1993 AUJP
Chevy Monte Carlo Passenger side kick panel BKLL
Chevy S10 Behind the glove box--remove glove box liner, remove connectors, slide PCM to the left and out AMRU, BARL, BCTW
Chevy Tahoe 1987-1995 Behind the glove box -- remove glove box liner 4 letters beginning with A or B
Chevy Tahoe 1996-2007 Under hood Need VIn and ECM Service #
Chevy TBI FS Vans 1987-1995 Behind panel / rearward of drivers' seat BPSA, ACUN, ARJT
Chevy Yukon Behind the glove box -- remove glove box liner 4 letters beginning with A or B
Chevy Z-34 Under the hood passenger side -- remove glove box liner 4 letters beginning with A or B
GMC Sonoma Under the dash passenger side ATKN, AZUS, BCZP
GMC Suburban Behind the glove box AXHJ, BASB, BANA, BAMP
GMC Syclone Behind the glove box AYBN,  BBZA
GMC Typhoon Behind the glove box AYBN, BBZB
Oldsmobile Passenger side kick panel--some under hood right side BMRY, AZJZ, BHFH, AXDN
Pontiac 6000 Behind the glove box -- Access from under dash. Remove panel 7mm screws 4 letters beginning with A or B
Pontiac Bonneville Behind the glove box -- Usually easier to access from under dash AYZB, ANWB, BHDZ, AZKN
Pontiac Fiero Rearward of center console between the seats AKYN, ALWM
Pontiac Firebird Pre 94 Under right side dash Post 94 Under hood passenger side ABWC, APYU, AUJM, AKXY
Pontiac Le Mans Behind the glove box 4 letters beginning with A or B
Pontiac Grand Am Passenger side kick panel BAKJ, BDBR, BFZW
Pontiac Grand Prix Under the hood passenger side BKXA, ARHL, ATYY
Pontiac Sunbird Behind the glove box 4 letters beginning with A or B

Chip BCC "codes" are located on the white paper label that's stuck to the computer. You can also find the chip code by removing the lid from the computer (two 1/4" screws) and checking what letter code is on the silver or white label attached to the Memcal or Prom chip. Once we have those letters, we can program your chip. When calling or Emailing an order we need to know the computer code, year, make and model of your car, the engine size and any after market parts you may have added already--remember our performance chips are computer code specific--that's why they're the best !!

If there's no removable chip (no removable cover, or 'knock module' only under the cover), it's newer than 1992 and it's a "flash" only computer. We will  need your VIN number and computer service number to send you a  performance computer.

INSTRUCTIONS Page
If you have further questions or problems -- contact us

Wester's Garage -- 218 Centre Street -- Box 159 -- Tilley, Alberta -- Canada -- T0J 3K0 ... We'll get YOU going FAST !!
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   Updated August 2010 ru