X6
Well the only time you should add a AFC controler is if you are RUNNING LARGER INJECTORS THAN THE ECU IS PRE-TUNED FOR. Putting a fpr on stock injectors is not going to make it flow more cc's than they are rated for.
The reason you got more response when you changed fpr's is cause you were using the stock EGT fpr on GTX injectors wich either gave them too much regulation or not enough to match the gtx fpr. So now you probably have close to proper fuel GTX curve. But now your confusing the ECU by having a AFC cause your changing the voltage signals that the MAF is sending to the ecu.
Also a turbo car is suppose to run slightly rich otherwise if its running lean then you will melt the pistons.
Im not dogging you I just want to point you in the right direction
When I had the 460cc injectors with the vf10 hybrid with a NA ECU. I copied Bugs's AFCII settings he posted awhile back, and guess what my car ran beautiful until I got greedy with the boost levels.
If you really want to get a good tune on a budget and still retain the stock GTX or NA ecu is to go Greddy E-Manage.
Otherwise leave it alone if your running GTX injectors and turbo, you do not need a afc controller or wideband.
Well the only time you should add a AFC controler is if you are RUNNING LARGER INJECTORS THAN THE ECU IS PRE-TUNED FOR. Putting a fpr on stock injectors is not going to make it flow more cc's than they are rated for.
The reason you got more response when you changed fpr's is cause you were using the stock EGT fpr on GTX injectors wich either gave them too much regulation or not enough to match the gtx fpr. So now you probably have close to proper fuel GTX curve. But now your confusing the ECU by having a AFC cause your changing the voltage signals that the MAF is sending to the ecu.
Also a turbo car is suppose to run slightly rich otherwise if its running lean then you will melt the pistons.
Im not dogging you I just want to point you in the right direction
When I had the 460cc injectors with the vf10 hybrid with a NA ECU. I copied Bugs's AFCII settings he posted awhile back, and guess what my car ran beautiful until I got greedy with the boost levels.
If you really want to get a good tune on a budget and still retain the stock GTX or NA ecu is to go Greddy E-Manage.
Otherwise leave it alone if your running GTX injectors and turbo, you do not need a afc controller or wideband.
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