Originally Posted by JKTUNING 
Originally Posted by Evlnxr Fuel Cut tables have always baffled me, the description in help says a lot of stuff, but not what changing things higher or lower rpm, and/or making the rpm values closer or further apart will change the driving experiance.
I recently picked up a GTIR Pulsar, with totally stock ecu, and its a joy to drive compare to my P10, it starts and idles perfectly, can be driven at light load low speed easily, has rock steady idle all the time. My P10 is a pig in traffic, and idles horribly at times. Yeah the P10 with the tuned ecu is faster and fine under load, the the light load and idle stuff is baffling and so hard to work out what and where needs to be adjusted to sort these issues out.
I think that you will find that the majority of the idle problems that customers have are tied to mechanical issues.
The idle and light load is ALWAYS the hardest part of the tune to dial in and get just right, but anything like a MAF leak or vac leak at the IM will cause all kinds of problems.
To the OP, if you car is literally stalling after over run fuel cut .. it is HIGHLY likely that you idle air valve is not opened far enough to catch the idle OR that section of the fuel/ignition map needs some adjustment.
A lot of people also make the mistake of thinking that they can idle larger injectors (earlier style) at the same AFR as smaller stock injectors. This can definitely cause an erratic idle, try adding a little fuel to the idle portion of the map or even adjusting your battery offset tables.
I do understand that the idle and fuel cut parameters can be a little overwhelming when you first look at them.
But if you take the time and really read how it all works together and adjust 1 thing at a time to see a trial and error you might get the hang of things.
Also, if you guys have some more specific questions, other than this stuff baffling .. we can give you a more specific answer on what to change!
Thanks John,
I'm sure , like me we read over all the notes to try and grasp what all this stuff means over and over. While not getting it at all. Then one day you read it again and you understand it a lot more haha.
BTW Nicoxis has stated what his issue is. The very slow, parking lot speed of light to no throttle and you get that embarrassing wild bucking horse phenomenon
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