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Old 12-14-2012, 09:11 AM
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Normal Fuel PSI?

Since replacing that low pressure fuel pump yesterday I am going to keep my fuel PSI gauge on the mini maxx.

What is normal at idle? Cruising speed?

I notice that when I am coasting down a hill, it is at 0. Cruise set at 67 it is about 9.2.
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Old 12-14-2012, 10:49 AM
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i see 4.8 at idle and at wot i see about 24.5
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Old 12-14-2012, 10:49 AM
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Are you talking about ICP on the minimaxx?
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Old 12-14-2012, 10:57 AM
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I have the ICP displayed. Is that not my fuel pressure? If not, which one is?

Last edited by barlowchiro; 12-14-2012 at 11:01 AM.
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Old 12-14-2012, 10:58 AM
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the ICP one is the rail pressure i believe. The other one is injector pulse width. The rail pressure (ICP) is the one you want to monitor.

Last edited by 04hdfatboy; 12-14-2012 at 11:02 AM.
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Old 12-14-2012, 11:07 AM
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So I should see 4.8 at idle and what is WOT?

I guess mine seems extremely low then at 67mph???
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Old 12-14-2012, 11:09 AM
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I see 4.8 at idle. WOT i believe most tuners command 24.5.
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Old 12-14-2012, 11:11 AM
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OK. I need to check mine at idle then.

Sorry for the ignorance but what do you mean by "WOT", and what do you mean most tuners command 24.5??
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Old 12-14-2012, 11:13 AM
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WOT is wide open throttle. When you put the skinny pedal to the floor if you are maintaining railpressure you should see around 24.5
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Old 12-14-2012, 11:15 AM
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If you are cruising around 67 mph 9.2 seems about right. I will keep an eye on mine around 70 mph and report back to you. That sounds about right tho
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