Auto enginuity question. - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 6 (permalink) Old 03-01-2009, 03:51 AM Thread Starter
 
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Auto enginuity question.

When running auto enginuity software. Does the calculated engine load function work for a 7.3 liter 2003 manual transmission.
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post #2 of 6 (permalink) Old 03-01-2009, 02:19 PM
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Re: Auto enginuity question.

I'm not sure about the SD's, but I just went and tried it with the jurassic era PCM in my OBS and I didn't get anything...Dennis will probably be along before long to tell you though.

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post #3 of 6 (permalink) Old 03-01-2009, 02:27 PM
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Re: Auto enginuity question.

As far as I know the net engine torque reading does not work on any 7.3 be it manual or auto.
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post #4 of 6 (permalink) Old 03-01-2009, 11:05 PM Thread Starter
 
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Re: Auto enginuity question.

Thanks for the responses. Im trying to trouble shoot a problem and having a heck of a time. I have done just about everything I can think of but the engine still runs funny some days. One day it will run almost normal. The next it is puffing white (atomised but unburnt fuel). When it smokes the icp is too high and the mass fuel desired goes way up. The engine starts fine and idle it perfect. Im trying to figure out why some days it runs fine and other days it goes out to lunch. I have even had it do this within minutes. The only sensor I can find at the moment that is out to lunch is the engine coolant temp sensor the 2nd one (manual transmission). It reads as high a 300 F. I will change it but as far as I understand over 220 should cause a defuel.
Has anyone ever had this or seen it before.

There is another question I have. What kind of a throttle reading should I see with auto enginuity. I am seeing .55 volts off pedle and only 3.90 volts @ full throttle. Does the PCM have to calibrate for a new pedal ?
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post #5 of 6 (permalink) Old 04-21-2009, 02:45 AM
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Re: Auto enginuity question.

I just bought AE, in the "User Guide" it explains how calculated engine load is calculated, it is calculated by comparing actual mass-air flow to max value of mass air flow. Unfortunatley 7.3 don't have a mass air flow sensor, therefore not being able to calculate this.

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post #6 of 6 (permalink) Old 04-22-2009, 06:35 AM
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Re: Auto enginuity question.

Quote:
Originally Posted by hoptwoit View Post
There is another question I have. What kind of a throttle reading should I see with auto enginuity. I am seeing .55 volts off pedle and only 3.90 volts @ full throttle. Does the PCM have to calibrate for a new pedal ?
Full throttle pedal voltage can be 4.00 to about 4.5 volts. Your 3.90 volts may be OK. You can slot the pedal mounting for the Throttle Position Sensor and rotate the sensor to bring up the voltage mechanically, there is no way to adjust the PCM.
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