Problems w/ AFC II, Datalogger, TPS, etc.

[ChvyKc]

First questions would be what is the best way to tune the low throttle settings on the AFC? I have a Palm MIII running MMCd, what exactly do I need to log and how should it be logged to get the low throttle settings right. I am having a problem with the car wanting to buck like it is hitting fuel cut at part throttle.

Secondly, I have been having problems with the car every since putting the AFC II on here. The car is still throwing check engine codes randomly. I finally pulled the code with my datalogger and it pulled a TPS code. Just wondering if you guys could help me out with this. Do I need to replace the TPS? It only throws the code at idle and it doesn't do it all the time. When it is throwing the code, the car hestitates when I try to rev it, but as soon as the RPM's go up the code goes away.

I am trying to work through all these problems, so if anybody can help, I would greatly appreciate it.

David

 

[95gstnj]

i'm having the same problem. 92 awd, 550's, afc. bucking under part throttle. wot is fine. it is very annoying to say the least.

 

[ChvyKc]

I finally figured out that mine will quit doing it if I turn the boost down. I am not for sure what is going on, but I am guessing that I am overflowing the stock MAS.

Just thought that I would add that in.

David

 

[DSMTalonAWD51]

the tech section teaches you exactly how to tune it. if you're too far out of tune the ecu cant compensate for enough fuel or lack of fuel and with throw a CEL

 

[ChvyKc]

the tech section teaches you exactly how to tune it. if you're too far out of tune the ecu cant compensate for enough fuel or lack of fuel and with throw a CEL

I am not that far out of tune, but I am still throwing a check engine light for the TPS. I finally got my logger cable in and got the code pulled. I am still trying to figure that out. I can't seem to adjust it right. At idle the logger says that TPS is at 14% and at full throttle it is at 96%. I can't get it to work right.

David