2006 si hi a/f and short term help

Chblakest · Post by **Chblakest** » Sun Nov 12, 2023 10:45 am

Ok guys got a super good deal on an 06 si recently and brought it back from the dead. Its finally on the road but the A/f is aroumd 21-22 at ifle. Short term trim is off the charts at idle. Under load everything fine. Should i worry? Has a chopped up used to be skunk2 cai. Alpha header. 650cc dw injectors. Slunk2 fuel rail. Dw fuel pump. Mega power rr exhaust. Skunk2 pro manifold.

CalibratEd · Post by **CalibratEd** » Sun Nov 12, 2023 8:11 pm

Welcome to the forum,

When the fuel trims are out of wack like that you should be worried. Something might be off. The tune would definitely need adjustments if the injectors were upgraded.

Post the calibration file you are running and a datalog of normal driving the car. I can take a look at it.

-Ed

Chblakest · Post by **Chblakest** » Mon Nov 13, 2023 11:10 am

files attached. thanks for checking it out

CalibratEd · Post by **CalibratEd** » Mon Nov 13, 2023 7:57 pm

The VTC0 fuel table is running rich. The fuel trims are maxed at 47%. The rest of the nonVtec tables need to be cleaned up as well there are many instances of the lines over lapping. I posted a picture of you map and a stock map so you can see how the lines are not crossing in the stock fuel table.

-Ed

stock.PNG

needsadjustment.PNG

Chblakest · Post by **Chblakest** » Mon Nov 13, 2023 8:08 pm

So i should adjust the lines until it runs right?

CalibratEd · Post by **CalibratEd** » Mon Nov 13, 2023 8:17 pm

If you want to do it yourself I suggest you find a basemap that has not been tampered with then dial in the fuel. If you plan to get it properly tuned then adjust the fuel at VTC0 and normal drive the car until you get it tuned.

Where did you fine the current calibration you are running? Did you try to make adjustments?

-Ed

Chblakest · Post by **Chblakest** » Mon Nov 13, 2023 8:21 pm

I used autotune. Seems to be making it worse. Would you recommend any of the preset tunes eith the bigger injectors?

Chblakest · Post by **Chblakest** » Mon Nov 13, 2023 8:22 pm

It was a skink2 peset tune

CalibratEd · Post by **CalibratEd** » Mon Nov 13, 2023 8:32 pm

Any of the preset tunes you use will need some adjustments. Find one with the mods closed to yours. I suggest you restart your tuning process but do not use autotune. Look up evans tuning on youtube. He has some videos that explain the basics.

-Ed

Chblakest · Post by **Chblakest** » Mon Nov 13, 2023 8:36 pm

Will do. I figured autotune would be pretty awesome to get me close to where i need to be.

CalibratEd · Post by **CalibratEd** » Mon Nov 27, 2023 11:43 am

I am not very familiar with auto-tune but I assume it has caveats.

-Ed

Hondata

2006 si hi a/f and short term help

2006 si hi a/f and short term help

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Re: 2006 si hi a/f and short term help

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Re: 2006 si hi a/f and short term help

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Re: 2006 si hi a/f and short term help