Tuning Accel gen VII
 

:( Hi everybody

I am new at this forum. I live in Sweden so there are very few people to talk about Accel DFI to. I have found one !!
I have -73 Corvette with 454 LS7 in it and using the Accel Gen VII.
I started up using the uttilities to get my first map. It runs badly.
At idle it's using the lower part of the V/E table = to fat mixture.
Perhaps I have t go to Alpha/N. How do I know?
Is there any place where people are sharing their maps so I could get info from there.
It would be great to get some hints from some using the Gen VII.

best regards
Bosv :(

Go to accels websight and download the tune they setup for there 454 crate motor setup, That will get you real close to start. Then from there just fine tune it. You dont' need Alpha/N mode. You also need a wide band before you can really tune anything for WOT. The narrow band will get you close. Look at the fuel trims and try to get them close to 0 by adding to the ve map to richen or lesson the Ve map to lean it out.
Before you can do this, you need to setup the commanded AFR map first. Idle should be about 14.5:1 through most of the map untill about 3/4 throttle where it needs to progressivly richen to about 13:1 afr at WOT. Also rich up the low vacume area of the map when you are accelerating hard progressivly to 13:1 also. After this, tuning will be a breeze.

Do you uderstand my extremely fast poorly written instructions?? :D

Thanks for your quick answer. But I can't find any setup at all on to Accel website. I looked at MrGasket and then under DFI.
Is there somewere else I should look ? Can you help me with that also?

/Bosv

I will look tonight if I still have a copy of a tune to start with and I can email it. I might not have it though, I have to check. Otherwise call them and they can email it to you.

I have the Gen7 on my car and if you don't have a wideband 02 sensor, you would do well to get one. I believe Accel will email the file to you if you call their tech line.

John

DL the latest version off the mr gasket site
http://go.mrgasket.com/calmap/calmapdownload.asp
Once installed it will put all the dfi pnp cals in the global cals folder. Match the model number to the crate engine that is closest to your setup. I have used many of these cals as starts