Thread: Fuel pressure
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Old 10-20-2003   #4
john
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Join Date: Oct 2003
Location: Isanti, MN
Drives: Dodge Viper and Honda Insight
Posts: 2,206
I just went out and did a couple of logs at 41 psi (fuel pressure). When I was going to the spot, I was hitting 20psi (just checking what I was running). When I started logging, I was only running 17psi. WTF. My o2's were .94 all the way with no knock at all and timing around 18 spiking at 21. I need to turn the boost back up and log some more. Car felt like it was running really rich. Didn't see half as fast as before.

I thought that injectors had something to do with fuel cut. When I upped to 550's at the same boost, I didn't hit fuel cut anymore. Maybe just a coincidence. Also I notice that I hit fuel cut when my injectors go over 25 ms. I thought I heard that upping fuel pressure will lower injector ms and take me further away from fuel cut.
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