I've been reading through all the diffrent forums for a few weeks now trying to learn the trade. I havnt been able to find any threads explaining the diffrence between all the diffrent mask and how you are supposed to know what which one to use. I'm guessing that it will be based off of which ECU or PROM you are using??
you have an ecm (like a 7747)
that ecm has software written for it, identified as a 'mask' (like $8D). different masks are completely different programs, with tables and constants in different locations. some ECMs only have a single mask written for them, some have many available.
each mask has various factory calibrations, with a 4 letter code (like AMYB). that's basically 'the tune'...
Anyway you can dumb it down a little more? I'm still in the early stages of learning everything. No detail is to small.
steveo provided a great description of how ecm, mask, and calibration are related. If you provide some details about what you're working on or a specific question maybe we can provide specific information to help.
from steveo, in another thread:
That's good stuff. Ever help a 12:00 flasher? You know, the guy who's digital clocks are always blinking 12:00? Dangerous people there, and likely to burn up an hour complaining about "newfangled contraptions."i can make it simpler too, i did tech support for a while for people that couldn't find the 'on' button on their computer. you just have to tell me how simple to make it....
Yep, Ever removed a PBJ from a CD drive?
Square body stepsides forever!!!
94 suburban. I put a high press fuel pump, tbi spacer, and injector spacer and now it's idles like crap when it first starts up. After about 15 seconds or so it finds it's sweet spot and runs great. Exhaust smells foul all the time now too. I don't know if tuning will help, but it's a great excuse to learn the trade.
i guess my question here would be "how do I know what mask to use?"
Last edited by tjerica1201; 08-03-2014 at 06:04 PM.
Posting Permissions
Reply With Quote
Bookmarks