Citroen c4 Coupe 1.6HDi 90HP 2006

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Citroen c4 Coupe 1.6HDi 90HP 2006

Postby Citroen032 » Fri Apr 24, 2015 2:30 am

Rate my tune. I tuned my car, bat I am not happy. EGR is off. Black smoke at lower revs and when the car gets stuck. The only consolation is that the car accelerates very well. And do not spend a lot. :D :?:

ORI:
412_f247dce5a4.bin



MOD(tuning and EGR off):
Swiftec (Citroen C4 HDI_1.6_90hp Version_#03 SW#1037376754)Tuned v2 EGR OFF.bin
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Re: Citroen c4 Coupe 1.6HDi 90HP 2006

Postby scoppack » Sun Apr 26, 2015 10:53 am

The injection durations are increased at lower pressure, but the start of injection is not. You may be injecting past best EOI so it smokes. Or you could rescale the IQ columns to scale fuel properly for the increased amount that is already calculated in durations

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Re: Citroen c4 Coupe 1.6HDi 90HP 2006

Postby Citroen032 » Sun Apr 26, 2015 11:45 am

scoppack wrote:The injection durations are increased at lower pressure, but the start of injection is not. You may be injecting past best EOI so it smokes. Or you could rescale the IQ columns to scale fuel properly for the increased amount that is already calculated in durations

Would you be able to fix it for me? I re-mapped file bought on the tuner did not really mastered EDC16. Or explain to me, so I'll do?

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Re: Citroen c4 Coupe 1.6HDi 90HP 2006

Postby scoppack » Mon Apr 27, 2015 11:25 am

Drivers wish requests torque
Torque is limited through curve
Torque is converted to fuel quantity
Most of the maps are scaled to 40 fuel quantity (This is where you could re-scale them to 50+)
( a lot of tuners increase the amount of fuel that is requested for injection durations, so instead of injecting the equivalent of 40mm3 at full throttle at 3000rpm, it puts in 50mm3, but the ECU still thinks its 40 and calculates everything else for 40 (smoke, start of injection, turbo, etc)
so, for each of the maps you modify, it is better to re-label the axis as a higher fuel quantity so everything works together.

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Re: Citroen c4 Coupe 1.6HDi 90HP 2006

Postby EVO Pro » Thu Jun 25, 2015 6:54 pm

thanks :) best regards

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