Smoothing out inputs
#1
Senior Member
Thread Starter
iTrader: (3)
Join Date: Dec 2007
Location: Seven Valleys, PA
Posts: 638
Total Cats: 11
Smoothing out inputs
I have been chasing inconsistent AFRs since i first installed this EECU back in 2009. No matter how smooth i make the fuel map table, i still get AFR values that move in the range of .1 to 1.0 from their median value. While logging i notice that at steady state throttle and rpm (cruise) the RPM value is constantly wandering ~30rpm and the MAP will wander ~2-8kPa. These transitions are pretty quick. So the logging tool at ~9 updates per second is having a tough time showing these changes.
-Is there some sort of electronic filter i could apply to these inputs?
-What can be done to filter the pulses that the MAP sensor is seeing? Maybe a canister with cotton in it between the manifold and the sensor...
-I believe the RPM variation is due to a low resolution of the stock trigger wheel. Is there a better trigger wheel available?
-Is there some sort of electronic filter i could apply to these inputs?
-What can be done to filter the pulses that the MAP sensor is seeing? Maybe a canister with cotton in it between the manifold and the sensor...
-I believe the RPM variation is due to a low resolution of the stock trigger wheel. Is there a better trigger wheel available?
Thread
Thread Starter
Forum
Replies
Last Post
Zaphod
MEGAsquirt
47
10-26-2018 11:00 PM