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Old 09-28-2013, 11:45 PM
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testing for weak hpop

hey guys, just looking to see if i could get a few pointers on what test to run and look for to see if my hpop is taking a dive on me.. i got a scan tool so i can monitor and record live feedback on icp... thanks in advance
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Old 09-29-2013, 01:29 AM
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You should log ICP and duty cycle then take it for a drive at WOT.
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Old 09-29-2013, 01:34 AM
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i did 1 run on my 120 tune before coming to work... beginning around 2115 psi @ 52%, halfway through i was at 1860psi @ 60%, and right at the end of my run i was at 2132psi @ 71%
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Old 09-29-2013, 07:12 AM
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you should test in "stock" setting.
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Old 09-29-2013, 07:30 AM
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Tested in stock setting I didn't drop below 2750psi and didn't exceed 40%..... With the 120 tune I started at 53% @ 2036psi, at the end of my run I was at 78% @1890psi... Truck was warm in both occasions... And threw a p1212 code... Just got done testing again
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Old 09-29-2013, 08:11 AM
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I'd say it's a little weak. You could have a bad ICP sensor giving an off reading. If the connector is oily, replace it anyway.
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Old 09-29-2013, 08:45 AM
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i replaced the ipr about 500 miles ago... and if i was getting false readings wouldnt it read way off on the stock tune also?
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Old 09-29-2013, 09:02 AM
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from the looks of it, the stock #'s are fine, but the hpop just cant keep up with demands in higher hp settings...upgraded hpop will cure that.
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Old 09-29-2013, 10:02 AM
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Is this not one of the situations where old and tired injectors or injector o-rings could be at fault?
Because mine acts the same way, only I can hit 99% duty cycle and drop down to 1600 psi

My ICP and IPR sensor/regulator were recently replaced.
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Old 09-29-2013, 01:13 PM
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Quote:
Originally Posted by fl-diesel View Post
hey guys, just looking to see if i could get a few pointers on what test to run and look for to see if my hpop is taking a dive on me.. i got a scan tool so i can monitor and record live feedback on icp... thanks in advance

Hauling my new 5th wheel camper i had the same code-so far i am changing the ICP this week as the sensor is covered in oil. Plan on taking the camper out end of the week to see what happens. Hoping it ends there.

How do you like your DP-Tuner? I'm seriously thinking of going that route soon, especially with the data you can get running down the road.
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