Seeing as how most people running an AEM EMS are boosted I figured this would be the best place to put this request (I've already tried the search feature with little luck).

I've recently rebuilt an ap2 that was previously comptech boosted using an AEM EMS, 650's, blah blah. I have tossed in another 2.2 bottom end with stock injectors and want to get things running NA before I move on to a planned turbo set-up but I do not have, and cannot find a stock (or nearly stock) 2.2 basemap to use with the AEM. I've tried manipulating the AEM supplied 2.0 map but am having startup issues. Also I do not have a stock ecu. Basically I would just like to get a known quantity (so to speak) to upload to the ecu so that I verify if the starting problem is ecu related or something else (i.e., wiring, coils, spark plugs, other).

Any help would be greatly appreciated. Please reply here or to my email at s_bucch@hotmail.com

 

Take the AEM base map, add 10% fuel, subtract 1-2 degrees of timing and it should be close. I found that the AEM base map knocked at part throttle and ran a bit too lean everywhere.

The other big changes should go to startup/coolant/IAT tables. The temperature corrections in the base map are way off for cooler weather. LOTS more fuel is needed at low temperatures during starting. IIRC, the rule of thumb is subtract 10% per additional 10 degrees C for a proper IAT correction. I like to keep 20C or around 68F as my zero point.

I would send you a map, but I just moved to a new computer and won't have access to all of that for two weeks.

Tim