Search results

Do you know of any good tuners locally in Phoenix?

The highest grade we have here is 91 and I run that all the time but my knock control was hitting 0.6. Apparently we have crappy gas here. On Phearables website they recommend adding 1.5 gallons of E85 to get 93 octane for better performance and adding E85 also brought my knock control down to...

Thats good to know. So the car is pretty much adding more fuel to compensate for the higher ethanol content because it takes more ethanol to produce the same power as regular gas. Is this correct?

Yeah the AFR seems to be on target. I did put 1.5 gallons of E85 (E51 here in Arizona) to keep knock control down. Thanks for the info.

Ok. I noticed the stock tune was running slightly lean as well. Do you know if these cars run slightly lean from the factory?

Completely stock.

Hopefully someone can shed some light on this particular issue I am having. I am currently running a Phearable tune on my '23 Civic Si (8200 miles). Car seems to be running fine but I did notice the fuel trims are running a bit lean. LTFTs stay steady at +3% while on the highway but as soon as I...