Hondata

I did a little service on the car. New Spark plugs, cleaned the MAF, intake tube and throttle body. I wasn't sure of spark plug age or type. Turn out they were Denso and I replaced them with Laser IR NGK.

Seems like I am getting better readings now. OEM tune seemed more consistent, so I threw the ...

Thank you for the suggestion. Unfortunately I don't have the factory air box, but I'm going to try cleaning the MAF and doing a few other things. It's probably due for a little tune up, and I don't know how old or what kind of spark plugs are in it.

I had a chance today to flip back to the factory calibration and do a few logs.

1st pull I didn't really get the same result as the previous ones with S trim. Logs 2 and 3 I did get similar S trim readings as the other calibrations. Log 3 was even with different fuel.

I did a 4th log which was ...

Glad I touched base here, Thanks for the response. That is something I haven't tried yet. I'll try data logging on a factory setting and see what I get. The car does have 140K on it, so maybe something else is going on. I'll post up a a factory data log once I have chance to do it.

Hello everyone,

I am new on here and was hoping to confirm my understanding of my data logs. I am new to engine tuning, but I am not new to how engines run and perform. I have a 2007 Civic Si.

I made some changes to my setup and it seemed that the base map could use a change as well.

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