So i got my cop car chip today still in the ecu, from 91-93 caprice, my car 89 camaro now with 350 bottom end with stock 305 heads, intake,I have done the esc, knock sensor and the injectors i got from a truck I think are 65lbers but i'm not certain...What I'm trying to figure out is I plugged in the prom from the cop car ecu into my stock 746 ecu and I get a flickering check light, which from researching means it either doesn't like the prom, voltage low, or wiring..The car is misfiring and will hardly rev to anything over 1000 rpm.. I know the battery was a little drained from it sitting but i can charge that no prob I just don't think its the battery, have I done something wrong or missed a step?? I'm new to the tuning aspect so far I do have an aldl cable and software but I the cop car ecu was cheap and figuerd I could plug in and go,, do this ecu have a learning curve like some imports where it takes a few trips to calculate new info?? THanks for any help

 

The fast flickering SES means that it is the wrong chip for your ECM. The '92 and '93 Caprices didn't use the '8746 ECM.

Moving to DFI & ECM board.

RBob.

 

Ok so I still need to find a chip that goes into the 746 ecm? or just make my own, anyone have a good bin file to start from?

 

8746 is 1989-1992 F body and B body V8 305-350cid. I dont believe the F body used a 350 CID so you need one from a B body Caprice....
check craig moates site under downloads for .bin. One can be purchased at tbichips.com or EBay...

 

Your best bet is to always do your own tuning. Just start with a stock calibration (BIN) and go from there. If you are interested in a 5.7l Cop Car cal that works in the '8746, it is ANLU.

RBob.

 

Thanks guys, is there a catalog or something for the 4 letter wording on the chips then the numbers afterwards as to what they mean and what cars they are for and what not, I'm new at this and apparently was told wrong by someone the other day what these mean, now I have a cop car ecm and prom that is of no use to me, anybody need it?

 

Post with the Service No. from the paper label on the ECM along with the 4-letter code on the EPROM. I can tell you whether they should work together along with what they are from.

RBob.

 

ok, in the meantime i'm gonna burn the 746 anlu file from moates website, we work on a lot of bmws at my shop and the chips we use are a bit different, what chips will i need to burn on, where is a good place to buy... thanks

 

ANyone? I just need to know what chip to buy, the numbers and what not on the chip or where to buy them

 

tbichips.com

Here is a thread that may help you...
https://www.thirdgen.org/forums/tbi/...3-350-9c1.html

 

I want to burn my own, brians site doesn't sell just blank chips, not that I saw anyway

 

The '8746 ECM uses the 2732 EPROM.

RBob.

 

thanks RBOb, I found this webpage and was wondering what the ns means in (2732 - 2732 32K 450ns EPROM)
speed i guess there is 200 250 and 450 will this matter or do I need a specific ns




http://www.futurlec.com/cgi-bin/sear...i?part_no=2732

 

For that ECM they can be 450 nsec or faster and work OK.

RBob.

 

nsec as in Enterprise Warp Drive? Beam me up Scotty !