Throwing codes - Need Help...please.
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Throwing codes - Need Help...please.
I have the Predator 91 Octane Tune installed and just recently started throwing codes. Detailes are:
P0171 Too Lean Bank1 and P0174 Too Lean Bank 2.
I have the 91 octane performance tune installed and if I clear the code, it comes right back. It is odd that I didn't start throwing the codes like this until 500 miles after the install.
I need advice... should I go back to stock? Should I log the data first and ask for the custom tune? ...or a combination of both?
The supporting dealer isn't very reponsive with my situation so any help I can get from you guys is greatly appreciated.
P0171 Too Lean Bank1 and P0174 Too Lean Bank 2.
I have the 91 octane performance tune installed and if I clear the code, it comes right back. It is odd that I didn't start throwing the codes like this until 500 miles after the install.
I need advice... should I go back to stock? Should I log the data first and ask for the custom tune? ...or a combination of both?
The supporting dealer isn't very reponsive with my situation so any help I can get from you guys is greatly appreciated.
Melting Slicks
Joined: Jul 2001
Posts: 3,284
Likes: 3
From: Southwest Florida
Originally Posted by 05_C6Z51
I have the Predator 91 Octane Tune installed and just recently started throwing codes. Detailes are:
P0171 Too Lean Bank1 and P0174 Too Lean Bank 2.
I have the 91 octane performance tune installed and if I clear the code, it comes right back. It is odd that I didn't start throwing the codes like this until 500 miles after the install.
I need advice... should I go back to stock? Should I log the data first and ask for the custom tune? ...or a combination of both?
The supporting dealer isn't very reponsive with my situation so any help I can get from you guys is greatly appreciated.
P0171 Too Lean Bank1 and P0174 Too Lean Bank 2.
I have the 91 octane performance tune installed and if I clear the code, it comes right back. It is odd that I didn't start throwing the codes like this until 500 miles after the install.
I need advice... should I go back to stock? Should I log the data first and ask for the custom tune? ...or a combination of both?
The supporting dealer isn't very reponsive with my situation so any help I can get from you guys is greatly appreciated.
Mike
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Originally Posted by mikeyc6
Those codes mean that your long term fuel trims are more than +25 meaning that the computer is having to add more than 25% more fuel than base. Check for air leaks first to make sure you don't have any leaks around the area of the MAF (between the MAF and the engine). If everything is OK, you might just need to adjust the injector slope negative to zero your LTFT's.
Mike
Mike
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Originally Posted by mikeyc6
Those codes mean that your long term fuel trims are more than +25 meaning that the computer is having to add more than 25% more fuel than base. Check for air leaks first to make sure you don't have any leaks around the area of the MAF (between the MAF and the engine). If everything is OK, you might just need to adjust the injector slope negative to zero your LTFT's.
Mike
Mike
Sorry for the delay, I had to take care of the kids. Everything looks pretty tight. I readjusted then tested and I still throw the same codes.
I'm not comfortable making the changes without somone looking over my shoulder. Is it just one setting or are there several I need to make?
Rick
Melting Slicks
Joined: Jul 2001
Posts: 3,284
Likes: 3
From: Southwest Florida
Originally Posted by 05_C6Z51
Mike:
Sorry for the delay, I had to take care of the kids. Everything looks pretty tight. I readjusted then tested and I still throw the same codes.
I'm not comfortable making the changes without somone looking over my shoulder. Is it just one setting or are there several I need to make?
Rick
Sorry for the delay, I had to take care of the kids. Everything looks pretty tight. I readjusted then tested and I still throw the same codes.
I'm not comfortable making the changes without somone looking over my shoulder. Is it just one setting or are there several I need to make?
Rick
Mike
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Originally Posted by mikeyc6
Are you looking at the real time data while driving the car? You need to take a look at your long term fuel trims at a constant throttle of say 20%. When you do that, what do you see for your LTFTs and where do you have your injector slope set? To get those codes, your LTFTs in at least one of your block learn cells (RPM and throttle position) has to be 25 to 26 as that's what sets the codes you quoted.
Mike
Mike
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LTFT's
22% at idle
19% 3rd gear 50MPH (1st run)
20% 4th gear (2nd run)
Also, I noticed when I try to save the file to my PC, it is a different file extension then what the instructions indicate it should be.
I sent Johan an email and he contacted me right away so maybe he can help. Thank you Johan!
The fact is, I gave my business to a particular vendor based on their support model and I'm not expereincing the support. I wouldn't be so frustrated if the supporting vendor responded to my requests for help.
22% at idle
19% 3rd gear 50MPH (1st run)
20% 4th gear (2nd run)
Also, I noticed when I try to save the file to my PC, it is a different file extension then what the instructions indicate it should be.
I sent Johan an email and he contacted me right away so maybe he can help. Thank you Johan!
The fact is, I gave my business to a particular vendor based on their support model and I'm not expereincing the support. I wouldn't be so frustrated if the supporting vendor responded to my requests for help.
Last edited by 05_C6Z51; Feb 20, 2006 at 05:26 PM.
Race Director
Joined: May 2000
Posts: 17,101
Likes: 5
From: No more yankee my wankee, the Donger is tired!
Originally Posted by 05_C6Z51
The fact is, I gave my business to a particular vendor based on their support model and I'm not expereincing the support. I wouldn't be so frustrated if the supporting vendor responded to my requests for help.
Who is the vendor. They have a tendancy to help once called out.
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Originally Posted by c6vette
Most of the cars that had cold air induction system installed are throwing the same code. May be due to the removal of th MAF screen.
