PDA

View Full Version : fuel cut off


claymore
Thursday 25th February 2010, 12:08
Does anyone know where the ecu gets it's signal to cut fuel when there is to much boost?
Rnash2002
Thursday 25th February 2010, 13:07
Does anyone know where the ecu gets it's signal to cut fuel when there is to much boost?

Could be the maf but might be wrong.
turbo-tuner
Thursday 25th February 2010, 13:24
Yes, the threshold to determine an "overboost" condition is set in the ECU, based on the signal from the MAF.
Colin850
Friday 26th February 2010, 00:57
So does that mean that if there's a fault with the MAF then it could either bring the boost cut in sooner or later than it should?
claymore
Friday 26th February 2010, 10:21
Could be the maf but might be wrong.
No, you missunderstand, I havent got a problem,Im running an upsolute ecu and would have expected it to have raised the fuel cut point, but it cuts the fuel at .9 bar.
So, can i use a pneumatic fuel cut defender, or will i have to use an electronic one?