Map Sensor Signal to QZ Commander? Voltage/Current/Ect...???

[SteveKran]

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.

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...

[strokin_early_99]

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.

[SteveKran]

Originally Posted by strokin_early_99

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?

[SteveKran]

bump........has anyone with a Commander delt with this problem?

[strokin_early_99]

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.