Rail pressure with Edge EZ

[WCPoe]

I have question for those that have an EDGE EZ with the in-cab 3 postion switch and a rail pressure gauge. Can you see the rail pressure increase when you move the switch up from level 1 to level 2 and level 3?

The reason I ask is that I just installed a Quadzilla RPG3000 rail pressure gauge which appears to be working correctly but my in cab EZ switch doesn't seem to affect the digital readout any more than the normal fluctuation while idling. I haven't been out on the open road enough here around Atlanta to test it at any higher speeds and was curious if anyone noticed the EZ's effect on the rail pressure readout.



Long story short --- a while back I accidently managed to pull the small switch assembly apart when taking my A-pillar off where the switch is mounted. I pieced it back together I thought correctly but it doesn't appear to be affecting the power level or rail pressure at all now. I just ordered a new in cab switch assembly from EDGE which should arrive in a few days.

Any comments would be appreciated.

Thanks, Bill

 

[JasonCzerak]

The EZ will not increase rail pressure until is sees some boost.



At highway speeds you can see the rail pressure change. while accelerating you can for sure see it.

 

[ENafziger]

Can you see the rail pressure increase when you move the switch up from level 1 to level 2 and level 3?

You sure can. I tried this with mine, having similar problems as you are. When I got it working, I got out on a flat stretch of road, set the cruise at about 75 mph, and watched the rail pressure (via the DiPricol Optix gauge).

Level 1: 22,500 psi
Level 2: 25,000 psi
Level 3: 27,500 psi

Make sure your gauge hooked up after the EZ, so you're reading the altered rail pressure values.

--Eric

 

[JasonCzerak]

NO! Incorrect! Rail pressure gauge should be connected to the sensor on the rail! IT should be the first plug that is plugged in!



The EZ should be plugged next, and then the stock hardness/plug into the EZ.



This way the gauge reads the real pressure on the rail, and the EZ fools the ECU with false information. the EZ will send a lower single then intended so that the ECU pushes more pressure.

You sure can. I tried this with mine, having similar problems as you are. When I got it working, I got out on a flat stretch of road, set the cruise at about 75 mph, and watched the rail pressure (via the DiPricol Optix gauge).



Level 1: 22,500 psi

Level 2: 25,000 psi

Level 3: 27,500 psi



Make sure your gauge hooked up after the EZ, so you're reading the altered rail pressure values.



--Eric

 

[WCPoe]

Makes sense now

Thanks guys. I should have realized the engine would need some load before the EZ does anything. I'll try to make some time to get out on the open road where I can pay attention to the gauge without rear-ending someone.

Bill

 

[ENafziger]

NO! Incorrect! Rail pressure gauge should be connected to the sensor on the rail! IT should be the first plug that is plugged in!

The EZ should be plugged next, and then the stock hardness/plug into the EZ.

This way the gauge reads the real pressure on the rail, and the EZ fools the ECU with false information. the EZ will send a lower single then intended so that the ECU pushes more pressure.

Yeah, what he said! Thanks for correcting my momentary memory lapse Jason!

 

[BHaner]

it says in the liture that the analog gauge will only read to 27000 psi so false answer

 

[ENafziger]

it says in the liture that the analog gauge will only read to 27000 psi so false answer<!-- google_ad_section_end -->

Not trying to contradict the literature or give false answers... just reporting what I observed; maybe something fluked, and another member should try this and report.