Question about AE before I buy - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 11-12-2011, 09:20 AM Thread Starter
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Question about AE before I buy

With AE I understand you can check codes, read live data, buzz test and cct test but...

Does it let you isolate or look at injectors individually. Like say if you had a weak injector or sticking poppet valve while running and acting up. Can you turn injectors off manually or see their response time?

My truck has an occasional rough idle and hesitates always with light pedal and low cruising rpm. Like just holding a steady speed down a neighborhood street. I've narrowed it down to the hpop or injector/s.

I know I should just buy the damn program but I know I already have a repair bill staring me in the face.

We have a Solus at work but I don't believe it can do more than a buzz and cct. Also I won't be there for a few weeks to grab it.

Any info is appreciated!

2001 F250 PSD - Oxford white, Swamps 175/146 Single Shots, intank mods, riff raff rfx ,magnaflow muffler

2001 Lightning - Oxford white, garage queen
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post #2 of 3 Old 11-12-2011, 09:24 AM
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Weather or not you can shut down injectors one at a time, I'm not sure, I've never done it.

BUT a dead, or low, cylinder is spotted by the "Rotational Velocity" (crank seed) I believe.

Here's what I have on that from AE-

" For 99-03 7.3L, another way to use AutoEnginuity to see if there are problems with a particular cylinder is to monitor the "Cylinder x Change Rotational Vel" or "Percentage of Crank Deceleration" PID (also commonly called PERDEL). This PID exists for all 8 cylinders and is a representation of crankshaft velocity change (decrease) at the time the cylinder is firing. Ideally, these should all read 0%. Any cylinder consistently reading more than 3-5% change in rotational velocity is suspect and should be further examined. Note: Engine should be fully warmed up before checking PERDEL data."
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post #3 of 3 Old 11-16-2011, 07:13 AM
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You can't do a cylinder cutout test with AE, but like NoRalph mentioned above, you can run a cylinder contribution test and it will narrow down problems to the respective cylinder. You can also read and map HPOP pressure and duty cycle. Beware that if you have a grey cam position sensor your engine will likely fail a contribution test on cylinders 3 and 8. The old black CPS doesn't have this issue.

I have a couple Ford bundles for sale here:

2000 F250, 7.3L, 6 speed, 4x4. S&B intake, CFM+ intake manifold, 6.0 intercooler, GTP38R, EBPV delete, Bellowed up pipes, DieselSite BRV, KCM oil crossover, South Bend clutch, PHP chip, 4" downpipe to 6" single stack.
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