Hi!
I've got a 2009 Fit 5-Speed that I just turbo'd.
The stock tune says the injectors are 310cc but they're actually 277cc. I tuned my fuel to compensate for this but I want to step up to the RDX 410cc.
When I put in the "old" (310cc) and "new" (410cc) injector sizes, the car doesn't start. And yes, I changed the injector dead times.
When I save the tune, close, and re-open the tune it still says the same old and new sizing. Shouldn't this put the 410 into the old and new spot once the tune is re-opened?
Thank you!
- Jason
Fuel Injector Scaling
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- Posts: 39
- Joined: Tue Sep 05, 2017 4:20 pm
- Location: Dallas, Texas
Fuel Injector Scaling
2003 Accord V6 6MT. PCD, J-pipe, Ktuner v2, TL can and ecu conversion harness
Re: Fuel Injector Scaling
Feel free to use the individual cylinder trims to offset the difference. The new and old size is not relevant other than the math for such a thing.
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- Posts: 39
- Joined: Tue Sep 05, 2017 4:20 pm
- Location: Dallas, Texas
Re: Fuel Injector Scaling
So if I put in the old / new values in the "injector sizing" field does it make changes to the individual cylinder trim numbers?KTuner wrote:Feel free to use the individual cylinder trims to offset the difference. The new and old size is not relevant other than the math for such a thing.
And if it's supposed to, do I need to save, close out of ktuner, and re-open the new tune for the values to change?
Thanks!
2003 Accord V6 6MT. PCD, J-pipe, Ktuner v2, TL can and ecu conversion harness
Re: Fuel Injector Scaling
It's a separate set of settings.
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- Posts: 39
- Joined: Tue Sep 05, 2017 4:20 pm
- Location: Dallas, Texas
Re: Fuel Injector Scaling
Is there a way to verify the parameters have been applied?KTuner wrote:It's a separate set of settings.
Right now if I change the “old” to 310 and “new” to 277, nothing changes with my air/fuel or short term fuel trims
2003 Accord V6 6MT. PCD, J-pipe, Ktuner v2, TL can and ecu conversion harness
Re: Fuel Injector Scaling
It would affect fuel pulse, but you can use the cylinder fuel trims in the same way.
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- Posts: 39
- Joined: Tue Sep 05, 2017 4:20 pm
- Location: Dallas, Texas
Re: Fuel Injector Scaling
For Main Fuel Trim and Cylinder Correction Fuel Trim, is that value the percentage between the old and new injectors, or is it CC capacity?
For my tune that's setup for 310cc and RDX 410cc, that's a 27% increase.
Would 27 (percent) go in the field or 100 (difference in CC)?
Thanks!
- Jason
For my tune that's setup for 310cc and RDX 410cc, that's a 27% increase.
Would 27 (percent) go in the field or 100 (difference in CC)?
Thanks!
- Jason
2003 Accord V6 6MT. PCD, J-pipe, Ktuner v2, TL can and ecu conversion harness
Re: Fuel Injector Scaling
As an example, -10 would reduce by 10 percent.