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Default 29E0 Fuel Mixture Control, every single day - 04-22-2016, 05:16 PM

been getting this code almost every day. It happens when I idle for more than a few mins.

I am now getting 29F1 - Fuel pressure, plausibility as well.

Fuel Mixture control code doesn't effect driving, but the 29F1 flicks on the half engine and fans at full speed.

Are we looking at injectors?


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Default 04-22-2016, 06:17 PM

Would an idle log work?


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Default 05-26-2016, 10:18 PM

I had the same code everyday on cold start - it was injectors


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Default 05-27-2016, 09:04 AM

You'd need to do a log when you are experiencing the issue.



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Blown95ImpalaSS Blown95ImpalaSS is offline
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Default 11-12-2016, 01:04 PM

hey OP, ever solve this?
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Default 11-12-2016, 01:10 PM

It's caused by the fuel scalar setting in the BEF not being set appropriately for the E85 mix used.


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JazRedGT JazRedGT is offline
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Default 01-13-2017, 04:31 PM

How do you solve it?


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N54QC N54QC is offline
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Default 01-13-2017, 04:51 PM

Quote:
Originally Posted by JazRedGT
How do you solve it?
Making changes to your fuel scalar or adjusting your E85/Gas mix. I have the problem when I run to much E85 for my setup


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JazRedGT JazRedGT is offline
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Default 01-13-2017, 04:57 PM

And that requires changes to the bin file of the backend?


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N54QC N54QC is offline
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Default 01-13-2017, 09:15 PM

Quote:
Originally Posted by JazRedGT
And that requires changes to the bin file of the backend?
Yes, if you continue to run the same concentration that you are currently running, you will make adjustments to your bin in tunerpro or equivalent. I personally lowered my concentration and the car runs better. To much ethanol seemed to have an adverse effect on performance, at least on my car it did unless your running PI, then that's a different story.


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Blown95ImpalaSS Blown95ImpalaSS is offline
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Default 01-13-2017, 09:47 PM

Quote:
Originally Posted by N54QC
Making changes to your fuel scalar or adjusting your E85/Gas mix. I have the problem when I run to much E85 for my setup
This was my issue btw. I must have futzed the mix up because I never had any more codes after that tank
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