darknezz7
Proven Member
- 571
- 80
- Mar 30, 2014
-
Eugene,
Oregon
Maybe I just have no idea what I am doing tuning wise but here is my issue...
This is on ECU+ and I know no one uses it or knows much about it but it seems a pretty general tuning system. So please give advice even if not related to ecu+.
With the stock maf when I push the throttle even slightly it leans out and stumbles, idles good at 900rpm 14.7afr though. Looking at a capture the maf output is way low compared to the input when I press the throttle.
If I check maf bypass mode (this sends the stock maf signal through the ecu+ to the cars ecu with no alteration) the car revs good but idles rich around 12, most likely because large injectors, capture shows maf input output the same. Obviously I cant tune it like this though.
The GM maf is the same thing but it idles better and ofc I cant bypass it. I had the analog output 0 and 1 voltages set to simulate for the iat and baro. Lets focus on the stock maf sensor for now though.
I'm just not sure what I need to do here, keep raising the fuel map till it does not lean out?
I feel this is directly related to some setting or fuel map I need todo in ecu+. I just do not know what todo... The car sounds pretty good though .
I have the injectors scaling set to 780 (highest it will go), but they are FIC 850cc installed.
Any advice appreciated.
This is on ECU+ and I know no one uses it or knows much about it but it seems a pretty general tuning system. So please give advice even if not related to ecu+.
With the stock maf when I push the throttle even slightly it leans out and stumbles, idles good at 900rpm 14.7afr though. Looking at a capture the maf output is way low compared to the input when I press the throttle.
If I check maf bypass mode (this sends the stock maf signal through the ecu+ to the cars ecu with no alteration) the car revs good but idles rich around 12, most likely because large injectors, capture shows maf input output the same. Obviously I cant tune it like this though.
The GM maf is the same thing but it idles better and ofc I cant bypass it. I had the analog output 0 and 1 voltages set to simulate for the iat and baro. Lets focus on the stock maf sensor for now though.
I'm just not sure what I need to do here, keep raising the fuel map till it does not lean out?
I feel this is directly related to some setting or fuel map I need todo in ecu+. I just do not know what todo... The car sounds pretty good though .
I have the injectors scaling set to 780 (highest it will go), but they are FIC 850cc installed.
Any advice appreciated.
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