![]() ![]() On a positive note I have learnt a bit more about XDF files etc ![]() Fortunately it's not the end of the world. ![]() I was hoping that changing the decay rate would be a simple way to solve this issue unfortunately it doesn't seem so. I am also off the opinion that the VX does drop the revs quicker after a cold start than the VS does but again without checking/sorting lean code I don't know if this is normal for this vehicle. What I did notice is that it did the same thing with the standard TB although not as bad as it is now. Hopefully I'll know more about this in a day or 2. The idle does drop lower then I think it should but that could be related to a possible fuel issue with is showing a lean exhaust code. I've been transferring over some of the scalars and there do seem to be some minor changes or maybe I don't have them 100% correct?ĪTM, it's not stalling so that is all good. Now im not saying this is anything like your issue, but something to keep in mind and also if you do try to drill a butterfly, start small, i worked up to 3.5 over a few trys! its easy to remove and drill bigger, but quite hard to make smaller! I ended up removing the TB and drilling a 3.5mm hole in the butterfly to effectively give it back that air leak it had, which meant i could have the butterfly closed but effectively allow more air past it! has been working great ever since! turning the idle screw down to fix this meant the IAC was open alot further and it was causing small issues. did my usual 10-20 steps at warm idle, then i found that it was open too far and causing the computer to drop in and out of idle, as it was seeing TPS %. Im not sure that it is relevant or not, but when i put the yella terra 70mm TB on my 202 i had to set the idle stop, all good, this was fine till i removed the PCV connection and ran only oil catch can breather lines, with no PCV at all. This goes hand in hand with the one above, so it will use the setting of what rpm to change from the above table, this one just dictates the time in seconds that it will remain that high till gradually decreasing to desired idle speed.įrom what i've seen in the VS it appears to use more smarts to get idle right rather than a fixed IAC setting it will sort of add/subtract from IAC value to get the idle right and such. IAC - Runtime to Disable Hot Idle Speed Offset V's CTS but also, its almost like they need another zero on the end, ie. I don't actually understand the numbers in this one, i would have expected them to be reversed, so more rpm increase when cold then down to nothing once warmed up. This one is going to be the one that will help with starting, if you find it starts but then needs to increase IAC to get desired idle, or you need more TPS to get it to go while cranking then increase this table at the desired CTS setting. IAC - Motor Park Position During Crank v's CTS probably can work this out with a log as you turn off, see the last IAC setting, and same at key on see where its at. i am not sure how it gets its "load" information, but i'm guessing when the engine is off it will park the IAC at those steps. ![]()
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