Does a power fc disable or have a fuel cut?
07 December 2010, 09:47 AM
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Does a power fc disable or have a fuel cut?
Went to over take a lorry in 4th at 3/4 throttle this morning, boost built up then felt like it hit a wall, is this a fuel cut or something else?
I was under the impression the power fc eliminates the fuel cut or can it just be raised with this,
version 4 type-r
power fc at 1.2-1.3 approx
take it the cold weather is causing an increase in boost?
I was under the impression the power fc eliminates the fuel cut or can it just be raised with this,
version 4 type-r
power fc at 1.2-1.3 approx
take it the cold weather is causing an increase in boost?
Last edited by stiggy wiggy; 07 December 2010 at 09:48 AM. Reason: Can't spell, lol
07 December 2010, 06:57 PM
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0.25 Bar over the Boost Setpoint will cause the PowerFC to fuel cut.
Check by monitoring with the commander, and recording peak values.
If this is what's happening, you could try going into the Boost Setting screen on the commander, lower the duty by a couple of %, then make a few WOT pulls in 3rd/4th gear, the ecu should start to re-learn the duty profile required for the target boost level.
If you then go back to the boost setting screen, you should see the value in the 3rd column (against the boost level you have selected) start to drop from a value of "255" - This indicates that the duty you have set is close enough for the ecu to learn and fine tune for stable boost.
Re-check again your peak boost levels, and level held through the rev range (you may find the boost naturally tails off at the top end anyway) - It maybe helpful to have a passenger in the car monitoring the boost levels for you.
If you're not confident in doing this, you should get whoever mapped the ecu to alter it for you. It would be advisable to make changes whilst accurately monitoring fuelling with a wideband, and listening to the motor with det cans.
Check by monitoring with the commander, and recording peak values.
If this is what's happening, you could try going into the Boost Setting screen on the commander, lower the duty by a couple of %, then make a few WOT pulls in 3rd/4th gear, the ecu should start to re-learn the duty profile required for the target boost level.
If you then go back to the boost setting screen, you should see the value in the 3rd column (against the boost level you have selected) start to drop from a value of "255" - This indicates that the duty you have set is close enough for the ecu to learn and fine tune for stable boost.
Re-check again your peak boost levels, and level held through the rev range (you may find the boost naturally tails off at the top end anyway) - It maybe helpful to have a passenger in the car monitoring the boost levels for you.
If you're not confident in doing this, you should get whoever mapped the ecu to alter it for you. It would be advisable to make changes whilst accurately monitoring fuelling with a wideband, and listening to the motor with det cans.
Last edited by FB Tuning; 07 December 2010 at 07:41 PM.
07 December 2010, 08:31 PM
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Blimey, you certainly done your homework there lol
legend! Thanks mate
I'll be getting it remapped in the near future along with an avc-r to control the boost so I'll prob just leave it as is coz it sounds way out of my league, thanks for the info tho matey.
legend! Thanks mate
I'll be getting it remapped in the near future along with an avc-r to control the boost so I'll prob just leave it as is coz it sounds way out of my league, thanks for the info tho matey.
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