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 Old 07-24-2012, 10:25 AM   #1
 
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Originally Posted by Sid3wayS View Post
If your fuel pressure ever reads 0 while your motor is running you have major problems. No matter what the circumstances your injectors are always spraying fuel, the amount is what changes. At Wot the pressures should always be above 1600psi, during engine brake and coast the pressure will drop drasticly but should never be any where near zero.
I thought the whole point of injector cut off is to save fuel and that completely shuts off fuel to the engine since the spinning wheels cause the engine to windmill when engine braking or coasting in gear. The lowest I have seen my fuel pressure go so far is 405psi during engine braking.

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