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Thread Tools | Display Modes |
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#1
Mon, August 17th, 2009, 12:22 AM
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Base Idle Question
My base idle is set at 700 and it still wants to idle at 760-775ish.
 TPS is .5v @ low idle and 3.75v @ WOT. EOT is at 120ish F. What can affect low idle speed? Does this on my tow program from Bill and on the programs I've altered. Install my chip from Tony and idle is normal. 
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Antonio '01 F-250 6spd 2wd Handshaker 7.3L PSD Stealth Dual Hpops, AC Alliants Headstuds and Forged rods balanced DIY Regulated Return with Racor Filtration #54 GTP 38R out 4" exhaust Southbend Con OFE to get it to the ground Gauges...Boost, Pyro, Fuel Pressure and temp.,HPOil, EOT, Pre and Post CAC temps I'm sure some other stuff I forgot! 
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#2
Mon, August 17th, 2009, 09:29 AM
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Don't overlook your idle speed adders and multipliers.
Cold Idle Control Hi Cam Idle Adder Cold Idle Multiplier It's just a thought.....
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Tuning, flashing, burning chips, and repairing all aspects of 7.3L Powerstrokes. SEVEN 7.3L-powered vehicles in the driveway. Two didn't come that way from the factory!
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#3
Mon, August 17th, 2009, 03:27 PM
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I looked at adders and multipliers and nothing looked odd.
The only thing that comes to mind is that pulse width @ MFD that the PCM is calling for at idle is a little too long....I have a split shot PCM code that's been altered for singles.
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