Combined map/maf with frequency maf

Forum for discussing how to install MicroSquirt(TM), choose and troubleshoot sensors, wiring, and communications for MicroSquirt (TM) and MicroSquirt Module(TM).
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Post Reply
jmenke
MegaSquirt Newbie
Posts: 1
Joined: Fri Oct 12, 2012 3:32 pm

Combined map/maf with frequency maf

Post by jmenke »

I was planning to use the combined map/maf option. It seems that frequency maf sensors can now be used, but I'm confused by the language in the quick start guide.

The guide states - "If, however, the combined MAF/ MAP option is selected, then MAF MUST be connected to the Barometric/second EGO sensor pin (#29)."

But it also states - "You can also use pin 5 of the Ampseal for MAF. Plus, if you have Frequency output MAF, you MUST use this pin because it is simultaneously tied to processor pin T7 which is the only timer pin that has a special read Frequency period mode, so it automates this process, making it much more accurate."

Since both of these state I MUST use a certain pin, does this mean that I can't use a frequency maf sensor when choosing the combined option?

Thanks!
Post Reply