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Quadzilla iQuad - no mph


SavageTusk

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I just finished installing my 4" Turbo back exhaust on the new truck today.  When I was done, I went for a spin and noticed I have no mph being displayed on the Quadzilla.  I didn't check it before so don't know if this is the issue or not.  Speedo is fine on the truck, what am I missing? 

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42 minutes ago, Me78569 said:

look at the quad display it will show you what the ecm is reporting.   IF it is reporting 0 psi at idle then the sensor is likely shot. 

It reports 0 at idle.  Normal when driving.

Edited by SavageTusk
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I made new grounds and terminal lugs today while I fixed the ground Reference for the VP44,ECM,PCM,PDC

 

Another oddity to throw in besides the codes,1693, 0237, 0501, 0522 & 0573 sometimes the coolant will display on the Quadzilla as -40*:clap: 

 

So the issues are:

-Erratic behavior on Oil pressure & coolant

-No MPH

 

Question.  I have another '99 outside, if this is a ecu problem could I plug that one on this truck? :shrug:

 

 

Edited by SavageTusk
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Well it seems like this is an issue with the ECM,  I tested it in my other 99 dodge I'm getting ready to sell and it immediately ran TERRIBLY.  I'm talking with Bob Wagner over at Smarty and it looks like at one time had a Van Aaken or edge box added to the truck via the ECM port.  I'm trying to get this repaired/reflashed.  Hopefully I can put this to bed soon.

 

Does anyone else have experience with flashing ECMs (Updating VIN, flashing software to the eeprom)?

 

 

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On 9/24/2018 at 1:57 PM, Me78569 said:

look at the quad display it will show you what the ecm is reporting.   IF it is reporting 0 psi at idle then the sensor is likely shot. 

Not entirely correct:

99 RAM CUMMINS is reporting 0 psi @ IDLE, There was software update on Cummins diesel ECU Between 2000 - 2001.5 which shows true atmospheric pressure 14.70 pounds per square inch @ sea level.

my 2¢...

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