Map Sensor Signal to QZ Commander? Voltage/Current/Ect...??? - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 02-12-2008, 09:41 PM Thread Starter
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Map Sensor Signal to QZ Commander? Voltage/Current/Ect...???

This is a convo stump and I were having (sorry, but it's a little out of order). Just curious if anyone knows a little more about it, preferrably a diesel tech.

What signal does the map sensor wire carry that the Quadzilla Commander taps into to read the boost pressure.

I'm going to be putting a boost fooler on my truck soon and want to find a way for the Commander to read the ACCURATE boost. I really don't want to put an analog gauge in my truck just to read the correct boost pressure.

Quote:
Originally Posted by SteveKran
I'm going to start a thread about this. I'm curious what kind of signal the Commander is picking up from the map sensor wire, whether it is voltage/current/ect...

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Originally Posted by stump0331
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Originally Posted by SteveKran
Hey man, will your commander read anything higher than 22psi of boost? Mine taps into my map sensor and it won't read any higher than that. I'm going to get the boost fooler so my computer won't throw a code when I'm WOT, but then my Commander still won't read what the boost really is. Is there a way around this?
you are the 1st person that ive had say that, ad yes i only see a max of 21psi, i have 2 seperate guages, (the quadzilla)that hooks to the map sesor, and then my snow water meth kit that hooks to the map line, and both wont read over 21. this has got me thinking

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post #2 of 5 Old 02-12-2008, 10:32 PM
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The Edge reads voltage. After the MAP senses 24psi, which is 5V-DC, it reverts to the default 8psi reading until the SES light goes out. Some of the Edge units have been reported/advertised to include a MAP fooler built in. That will only fool the MAP and will read the altered voltage output there by displaying an inaccurate boost pressure.

If you are going to put in a MAP fooler then you can only read the fooled reading with your Edge. You will have to put in an analog gauge.

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post #3 of 5 Old 02-12-2008, 11:53 PM Thread Starter
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Originally Posted by strokin_early_99 View Post
The Edge reads voltage. After the MAP senses 24psi, which is 5V-DC, it reverts to the default 8psi reading until the SES light goes out. Some of the Edge units have been reported/advertised to include a MAP fooler built in. That will only fool the MAP and will read the altered voltage output there by displaying an inaccurate boost pressure.

If you are going to put in a MAP fooler then you can only read the fooled reading with your Edge. You will have to put in an analog gauge.

I don't have an Edge, I have a Quadzilla Commander. I'm going to assume it also works the same though...

I wonder if Quadzilla's fuel pressure kit will work on my boost? All it needs to do is convert pressure to voltage, right?

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post #4 of 5 Old 02-13-2008, 04:42 AM Thread Starter
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bump........has anyone with a Commander delt with this problem?

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post #5 of 5 Old 02-13-2008, 06:15 AM
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However, it is the same difference between the two. They both read the voltage feedback from the MAP. I don't know about using the fuel pressure sending unit as a boost pressure but I don't see how it would matter what you put the sending unit into. It should work just fine and you will get a real pressure reading.

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