Hondata

Both the oil pressure and oil level work with the AFM calibration.

If they don't then either a FN2 calibration is not loaded, or there is a difference in wiring between your vehicle and the UK FN2 which we base the calibration off.

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Hondata

Any update on this as we have the same problem? When we uploaded a MAP based calibration we lost the oil presure warning light. If we upload the gpN AFM calibration the oil presure light works normally. The car is a european FN2 rally car. Thanks

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Broderick Motorsport

We tested this and it worked correctly on a Euro FN2. What you need to do is look at your vehicle wiring / oil pressure sensor and determine if there is a difference between the FN2 and your vehicle. I believe there is a difference, but we are not in a position to determine what it is.

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Hondata

Our vehicle is a 08 UK Spec. FN2 Civic Type R. The wiring harness is the standard Honda Unit. The oil presure warning light worked normally with the standard ecu. When we uploaded the Civic-Si RSP-2-Group N calibration the light continued to work normally. We could not tune this satisfactory. When we uploaded the MAP based Civic Si Race-8-RC440 the oil presure light stoped working. Now if we upload the Group N calibration the light works but the car is tuned on the Race calibration. Surely this cannot be the wiring when the light works with the Group N calibration?

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Broderick Motorsport

How does the calibration affect the oil presure light? Is there any fix to get the oil presure light working eg. connect senor directly to a certain wire. Thanks

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Broderick Motorsport

:x Can anyone help with this?

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Broderick Motorsport

Are you talking about the oil pressure light or the oil level?

Hi, sorry did not check this in a while. It the oil presure light. Need to sort this out soon as car is still sitting here. Thanks

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Broderick Motorsport

Can you determine the difference int wiring between that vehicle and a UK spec FN2?

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Hondata

There is no difference it is a uk spec. FN2

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Broderick Motorsport

Have you being able to find out anything for me?

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Broderick Motorsport

For all 2006+ Civics the engine oil pressure switch is wired into the ECU via pin B7. The ECU then sends the oil light off/on command to the gauges via CAN. As far as I know this works correctly on all year FN2s - many of out users have used race calibrations.
If your oil pressure light is not working then first start by checking voltages on pin B7. Make sure the low oil voltage is less than 0.3V when measured to a logic ground (look in the manual and find a logic ground pin on the ECU). Check the voltage goes to battery voltage when the engine is running. If you're more than 0.3V different either way then the signal may not be close enough to ground or battery voltage to trigger the ECU. Finally use the Honda scan tool to check that the ECU is picking up the oil pressure signal correctly.
If that looks good then the problem lies between the ECU and gauges. To test this you would need to either test the ECU in another vehicle, or the gauges from another vehicle in yours.

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Hondata