question about defueling...
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Senior User
Joined: Jul 2001
Posts: 352
Likes: 0
From: Palatka, FL
question about defueling...
With the predator on my truck and the mods i've done, i get the high backpressure code. Is it true that the computer defuels the motor when the backpressure gets high? And what I really want to know is does the computer defuel until the next drive cycle or until you let off the throttle?
Postmaster
Joined: Jan 2004
Posts: 4,758
Likes: 7
From: colorado
the pcm will defuel the engine and turn on the ses light(only for the duration of the over boost condition) if it gets an overboost signal from the map sensor, however the exhuast back pressure sensor will through a code and set the ses light if it sees an over pressure, but it will not defuel the engine
