anyone got a memcal part nr 16146696 ?
need it for a manual trans 1990 firebird 3.1
thanks

If your interested I can burn you one or reprogram your or I have a Hypertech

Btw the 16146696 superseded number from atrj is bawx gm or acdelco 16176864

thank you maybe for my other bird when i am done with the engine
but for this one i want an original

what does that mean ? because with the number 16146696 i cant find one on the internet to buy

The 16146696 has the letters atrj on it. It’s a old program that has been updated to bawx

i found this information here https://www.3rdgenformula.com/90/promcodes.htm
so the 1990 there is ALSX,ATRJ 16146696
and the 1991 ARPL, ARPK, BAWX 16176864
there is a different number

The bawx will work for 90-92

the only difference i know is that the 1990 3.1 has the secondary air inj. before the o2 sensor and the 1991,1992 after the o2 sensor directly into the cat
so this makes no difference ?

I would think if that’s the case it would make a difference if the o2 is seeing additional air it needs to compensate.
Your only option might be to ask in the diy prom section for the 90 binary program.

so i bought a ARPL ,listet for 1991 and 1992 only i hope this works on my 1990
do you have any information why the 1990 3.1 memcal is differend ? or just a better prom for the later models

I don’t know why the binary program is different in 90.
The letters on the memcal or bcc identifys the usage. Gear ratio/ transmission type , year used , application.
engine size.
you can do a file compare using tunerpro to see the differences.

http://www.gearhead-efi.com/Fuel-Inj...Information-88


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