Tired of looking for the right answer.. IX rpms hang up when shifting
Now to answer this question.
I dont know what it is with a vendor badge, but as soon as you get one, it seems if people are always looking to make what you say look wrong. (see example above.)
This is WHY I dont always post things publically and is leading to me posting even less tips and tricks.
Tell all the haters thank you.
I dont know what it is with a vendor badge, but as soon as you get one, it seems if people are always looking to make what you say look wrong. (see example above.)
This is WHY I dont always post things publically and is leading to me posting even less tips and tricks.
Tell all the haters thank you.
You know your entitled to your opinion. But there are other ways to tune. Just like scaling injectors. Many methods no answer that's 100%.
I personally have seen no difference between adjusting the two different tables. Like always, written form of communications leave us to assume each others moods. I was being playful not rude. You read it wrong sorry. I felt mis understood and I do know as I have read all these threads. So the evo 8 debate led me to be firm but not trying to be rude. Im sure your experience is creditable, but the fix I posted worked for me and other costumers. If I run into a car where it doesn't work completely I will admit it and use the decel tables as well. But it has been needed for me yet.
Evan Smith
I personally have seen no difference between adjusting the two different tables. Like always, written form of communications leave us to assume each others moods. I was being playful not rude. You read it wrong sorry. I felt mis understood and I do know as I have read all these threads. So the evo 8 debate led me to be firm but not trying to be rude. Im sure your experience is creditable, but the fix I posted worked for me and other costumers. If I run into a car where it doesn't work completely I will admit it and use the decel tables as well. But it has been needed for me yet.
Evan Smith
You know your entitled to your opinion. But there are other ways to tune. Just like scaling injectors. Many methods no answer that's 100%.
I personally have seen no difference between adjusting the two different tables. Like always, written form of communications leave us to assume each others moods. I was being playful not rude. You read it wrong sorry. I felt mis understood and I do know as I have read all these threads. So the evo 8 debate led me to be firm but not trying to be rude. Im sure your experience is creditable, but the fix I posted worked for me and other costumers. If I run into a car where it doesn't work completely I will admit it and use the decel tables as well. But it has been needed for me yet.
Evan Smith
I personally have seen no difference between adjusting the two different tables. Like always, written form of communications leave us to assume each others moods. I was being playful not rude. You read it wrong sorry. I felt mis understood and I do know as I have read all these threads. So the evo 8 debate led me to be firm but not trying to be rude. Im sure your experience is creditable, but the fix I posted worked for me and other costumers. If I run into a car where it doesn't work completely I will admit it and use the decel tables as well. But it has been needed for me yet.
Evan Smith
Last edited by Boosted Tuning; Sep 21, 2010 at 04:08 PM.
Ok, thank you all so far.. I finally got around to adding the .xml files so I can adjust the fuel cut tables. I have 4 tables, cut 1 cut 2, and two others. What values do I want to change to? I tried to follow another thread listed in the link but was still kinda unsure of it all.
Regarding Decel Fuel Cut Delay:
What is it's purpose and do we need it?
Here's what I know. Most cars cut off the injectors if TPS=0(or close to it) and RPM>several hundred RPM above idle. So even though there is a small amount of air getting to the cylinders, the injectors are completely cut off. Those with a wideband will see this during deceleration when the AFR goes off the chart lean (or starts reading % oxygen).
The fuel cut delay essentially delays when the injectors are cut off. You can see the delay on a wideband.
When the throttle snaps shut, there is still a path for air to get through... the idle air bypass. This is why making adjustments to the ISCV tables affects this problem. The problem would be compounded if the BOV was not opening properly. You'll have a higher differential pressure between upstream and downstream of the throttle butterfly. Which would mean more air getting through to the cylinders. Running higher boost with a problematic BOV would make it even worse.
Why is the Load on the Load vs Delay table limited to 70? This doesn't make any sense to me. The hang usually isn't a problem for me below a load of 100.
So, again... What is it's purpose and do we need it? Has anyone tried zeroing out the delay table?
What is it's purpose and do we need it?
Here's what I know. Most cars cut off the injectors if TPS=0(or close to it) and RPM>several hundred RPM above idle. So even though there is a small amount of air getting to the cylinders, the injectors are completely cut off. Those with a wideband will see this during deceleration when the AFR goes off the chart lean (or starts reading % oxygen).
The fuel cut delay essentially delays when the injectors are cut off. You can see the delay on a wideband.
When the throttle snaps shut, there is still a path for air to get through... the idle air bypass. This is why making adjustments to the ISCV tables affects this problem. The problem would be compounded if the BOV was not opening properly. You'll have a higher differential pressure between upstream and downstream of the throttle butterfly. Which would mean more air getting through to the cylinders. Running higher boost with a problematic BOV would make it even worse.
Why is the Load on the Load vs Delay table limited to 70? This doesn't make any sense to me. The hang usually isn't a problem for me below a load of 100.
So, again... What is it's purpose and do we need it? Has anyone tried zeroing out the delay table?
Last edited by AutoXer; Oct 23, 2010 at 03:36 PM.
Regarding Decel Fuel Cut Delay:
What is it's purpose and do we need it?
Here's what I know. Most cars cut off the injectors if TPS=0(or close to it) and RPM>several hundred RPM above idle. So even though there is a small amount of air getting to the cylinders, the injectors are completely cut off. Those with a wideband will see this during deceleration when the AFR goes off the chart lean (or starts reading % oxygen).
The fuel cut delay essentially delays when the injectors are cut off. You can see the delay on a wideband.
When the throttle snaps shut, there is still a path for air to get through... the idle air bypass. This is why making adjustments to the ISCV tables affects this problem. The problem would be compounded if the BOV was not opening properly. You'll have a higher differential pressure between upstream and downstream of the throttle butterfly. Which would mean more air getting through to the cylinders. Running higher boost with a problematic BOV would make it even worse.
Why is the Load on the Load vs Delay table limited to 70? This doesn't make any sense to me. The hang usually isn't a problem for me below a load of 100.
So, again... What is it's purpose and do we need it? Has anyone tried zeroing out the delay table?
What is it's purpose and do we need it?
Here's what I know. Most cars cut off the injectors if TPS=0(or close to it) and RPM>several hundred RPM above idle. So even though there is a small amount of air getting to the cylinders, the injectors are completely cut off. Those with a wideband will see this during deceleration when the AFR goes off the chart lean (or starts reading % oxygen).
The fuel cut delay essentially delays when the injectors are cut off. You can see the delay on a wideband.
When the throttle snaps shut, there is still a path for air to get through... the idle air bypass. This is why making adjustments to the ISCV tables affects this problem. The problem would be compounded if the BOV was not opening properly. You'll have a higher differential pressure between upstream and downstream of the throttle butterfly. Which would mean more air getting through to the cylinders. Running higher boost with a problematic BOV would make it even worse.
Why is the Load on the Load vs Delay table limited to 70? This doesn't make any sense to me. The hang usually isn't a problem for me below a load of 100.
So, again... What is it's purpose and do we need it? Has anyone tried zeroing out the delay table?
So it all comes to ISCV tables, the "decel fuel" ones and the RPM adder ones.
The original theory of why the decel fuel tables was that the ECU was still dumping fuel into the engine and helped caused the hang. It turns out that wasnt the case.
Edit:
I found it... https://www.evolutionm.net/forums/8744106-post133.html
Last edited by AutoXer; Oct 23, 2010 at 06:35 PM.
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