I was looking at a log file I made to try to figure out what is causing my hesitation. As I increase the throttle, the afr jumps for a short time and falls back in line. As my engine load increases, so does my afr... I have a log file that I posted. It contains o2, throttle, engine load, injector duty, individual injector pulses, as well as the fuel map. I have tried adding fuel to the map, but still have the same issue. I am hoping that it is as simple as a MAP sensor, but not really sure. I could really use an expert's advice on this one. I want to get a touch-up tune after I take it out of storage, would want this problem solved before I waste time and money on a dyno.

log

Thanks in advance,

-Josh Brown

 

I didn't review the log, however it could be a tps issue.

If you can connect to your aem, what does your tps voltage say when teh car is not running and your foot isn't on the throttle?

When you depress the throttle completely, what does the final volatage read?

 

To be honest I never tought that would be an issue. I have heard that people who use cruise control often have an issue with flat spotting their tps. I lived in the middle of nowhere the past year or so, and pretty much used it on the highway for at least an hour a day (supercops)... I will look into this as soon as I can. I am pretty sure where its at. Thanks for just the tip haha.

-Josh