chrisvr6t 19 Posted April 21, 2014 Report Share Posted April 21, 2014 Having issues again! With the maf unplugged it runs in the 14s with it plugged in its going straight into 17s on idle????? Also before I noticed the maf situation, at low boost the car will have it's full rev range and will not bog out as soon as it's turnt up it will boost hard then fall on it's face and sound of the car will totally change like a hose has popped off but it hasn't?? Starting to get pi**ed off with it a lot cos it's nothing but problems Sent from my iPhone using Tapatalk Link to post Share on other sites
UnitedMotorsport 55 Posted April 21, 2014 Report Share Posted April 21, 2014 You have a lambda probe fitted and its working? What AFR do you see just before "then fall on it's face?" At what boost is this occuring? Link to post Share on other sites
chrisvr6t 19 Posted April 21, 2014 Author Report Share Posted April 21, 2014 You have a lambda probe fitted and its working?What AFR do you see just before "then fall on it's face?" At what boost is this occuring?Sent from my iPhone using Tapatalk Link to post Share on other sites
chrisvr6t 19 Posted April 22, 2014 Author Report Share Posted April 22, 2014 this is when car warms up on idle Sent from my iPhone using Tapatalk Link to post Share on other sites
CALICO 130 Posted April 22, 2014 Report Share Posted April 22, 2014 You need to answer the questions united motorsport asked as he is one of the best people to help you. michael5556 1 Link to post Share on other sites
michael5556 247 Posted April 22, 2014 Report Share Posted April 22, 2014 As above. Answer his questions. No one better to help on here than them on this topic.... Link to post Share on other sites
UnitedMotorsport 55 Posted April 22, 2014 Report Share Posted April 22, 2014 With no lambda probe fitted on this system. Idle fueling will not be at 14.7. Its inherent to how we map this system. Fit a lambda probe and you will have closed loop (warm) idle control at 14.7 and what ever AFR in boost that you want by adjusting fuel pressure. Right now if you had a lambda fitted at 90 degree C your idle would be at 14.7, and at 1 bar of boost 12:1. Then if you adjust the fuel pressure to be greater, you'd still have 14.7 at idle and less than 12:1 at one bar boost. Can you show pics of how your dump valve is fitted? Link to post Share on other sites
chrisvr6t 19 Posted April 22, 2014 Author Report Share Posted April 22, 2014 With no lambda probe fitted on this system. Idle fueling will not be at 14.7. Its inherent to how we map this system. Fit a lambda probe and you will have closed loop (warm) idle control at 14.7 and what ever AFR in boost that you want by adjusting fuel pressure.Right now if you had a lambda fitted at 90 degree C your idle would be at 14.7, and at 1 bar of boost 12:1.Then if you adjust the fuel pressure to be greater, you'd still have 14.7 at idle and less than 12:1 at one bar boost.Can you show pics of how your dump valve is fitted? I haven't got any pics at the moment but I will take some for you ASAP, as soon as payday comes I will order a brand new lambda sensor, I think I'm just gonna run the car with out the recirc, the way I have it now is it's recirculating back into my boost pipe Sent from my iPhone using Tapatalk Link to post Share on other sites
chrisvr6t 19 Posted April 22, 2014 Author Report Share Posted April 22, 2014 mine is basically same as that neck into intake and recirculating back into the boost pipe and I have tried this the otherway round same thingSent from my iPhone using Tapatalk Link to post Share on other sites
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