Notices
1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Issopro EV2 Install Problem.

Thread Tools
 
Search this Thread
 
Old Oct 4, 2010 | 08:01 PM
  #1  
Bobbys Big Red Rig's Avatar
Bobbys Big Red Rig
Thread Starter
|
Senior User
Joined: Aug 2010
Posts: 299
Likes: 1
From: Anderson SC
Club FTE Silver Member

Issopro EV2 Install Problem.

Purchased a couple of Issopro EV2. Install went pretty good except for the fact that they are not working. Installed with a Potentiometer. Three wires go from the Potentiometer to the gauges; red, orange, and black. I have power to red and orange when the switch is on, orange will dimm and brighten tester light has Potentiometer is adjusted. Power tested in the connector to make sure wires were making contact, all good. Ground is a commen ground that had two other stock ground wires hooked to it. Used the same ground for my tester light, it worked. Gauges are not showing any life at all. Wires match up instruction pics for the connector, checked and rechecked. I am lost. HELP!!
 
Reply
Old Oct 4, 2010 | 10:45 PM
  #2  
bigb56's Avatar
bigb56
Logistics Pro
15 Year Member
Photogenic
Liked
Loved
Joined: Aug 2009
Posts: 3,609
Likes: 324
From: Arizona
Club FTE Silver Member

You did push the connectors all the way into the gauges till they clicked, right? And you forced the wires all the way into the connectors then slid the cover on? On mine I trimmed the ends short so they'd lay inside the cover, that made them push farther onto the connectors instead of having the excess lay up over the little ridge. I hope you noticed the connectors can only be wired one way, there is a notch or something telling you which side the numbers start on. Also, the little plastic tool only fits properly one way. Did you force the tool down with pliers? All I can say is go over the instuctions and the wires again, make sure everything is where is is supposed to be. What about your inline fuse? My EV-2s work great, I love them. Although the pot didn't really do much for dimming, I could've gone without it.

My instructions are packed away in my shed but if you don't figure it out I'll dig them out and double check your hookups.
Which gauges are they?
 
Reply
Old Oct 4, 2010 | 11:38 PM
  #3  
Franko72's Avatar
Franko72
Molon Labe
15 Year Member
Joined: Dec 2006
Posts: 5,272
Likes: 1
From: Alaska
Club FTE Silver Member

Same thing happened to me Bobby when I first installed mine, but like bigb56 said, double check that the wires are all the way in. I used a small flat tip screw driver to force them in all the way. That little plastic thingy didn't do for me.
Some of my wire jackets weren't split enough to make a connection. try that and let us know.
 
Reply
Old Oct 5, 2010 | 05:06 AM
  #4  
Bobbys Big Red Rig's Avatar
Bobbys Big Red Rig
Thread Starter
|
Senior User
Joined: Aug 2010
Posts: 299
Likes: 1
From: Anderson SC
Club FTE Silver Member

Originally Posted by bigb56
You did push the connectors all the way into the gauges till they clicked, right? And you forced the wires all the way into the connectors then slid the cover on? On mine I trimmed the ends short so they'd lay inside the cover, that made them push farther onto the connectors instead of having the excess lay up over the little ridge. I hope you noticed the connectors can only be wired one way, there is a notch or something telling you which side the numbers start on. Also, the little plastic tool only fits properly one way. Did you force the tool down with pliers? All I can say is go over the instuctions and the wires again, make sure everything is where is is supposed to be. What about your inline fuse? My EV-2s work great, I love them. Although the pot didn't really do much for dimming, I could've gone without it.

My instructions are packed away in my shed but if you don't figure it out I'll dig them out and double check your hookups.
Which gauges are they?
Did all that. Never could figure out the tool so I used a small screw driver. Tested inside connector and had power. Push connector into gauge till it clicked and stopped, may try a little extra push. Has to be something simple that I am missing. Two gauges and they are both doing the same, nothing.
 
Reply
Old Oct 5, 2010 | 02:56 PM
  #5  
Bobbys Big Red Rig's Avatar
Bobbys Big Red Rig
Thread Starter
|
Senior User
Joined: Aug 2010
Posts: 299
Likes: 1
From: Anderson SC
Club FTE Silver Member

Originally Posted by Franko72
Same thing happened to me Bobby when I first installed mine, but like bigb56 said, double check that the wires are all the way in. I used a small flat tip screw driver to force them in all the way. That little plastic thingy didn't do for me.
Some of my wire jackets weren't split enough to make a connection. try that and let us know.
Went home for lunch and checked everything, again. I have two gauges and they both are doing the same thing, nothing. Power is good into the connectors, I mean right inside where the gauge contacts go in. I am thinking Ground. I used what I am calling a common ground, it is a stock bolt with two other ground wires on it. I am going to replace the end crimp connector I used, had problems with these connectors when used on my boat. If that does not work I am running a ground to my battery just to see if that is it.
 
Reply
Old Oct 5, 2010 | 03:16 PM
  #6  
Franko72's Avatar
Franko72
Molon Labe
15 Year Member
Joined: Dec 2006
Posts: 5,272
Likes: 1
From: Alaska
Club FTE Silver Member

Originally Posted by Bobbys Big Red Rig
Went home for lunch and checked everything, again. I have two gauges and they both are doing the same thing, nothing. Power is good into the connectors, I mean right inside where the gauge contacts go in. I am thinking Ground. I used what I am calling a common ground, it is a stock bolt with two other ground wires on it. I am going to replace the end crimp connector I used, had problems with these connectors when used on my boat. If that does not work I am running a ground to my battery just to see if that is it.
Even after I forced the wires in with a screwdriver, some of them didn't break thru the jacket. I stripped off the jackets on the lowest connection, and made sure there was plenty of wire showing on the upper gauge where it goes thru the connectors.
And double check the direction of the plug in the back of the gauge, it goes one way, but It will go in backwards....(I did that too when i started to get frustrated)
 
Reply
Old Oct 5, 2010 | 03:44 PM
  #7  
Bobbys Big Red Rig's Avatar
Bobbys Big Red Rig
Thread Starter
|
Senior User
Joined: Aug 2010
Posts: 299
Likes: 1
From: Anderson SC
Club FTE Silver Member

Originally Posted by Franko72
Even after I forced the wires in with a screwdriver, some of them didn't break thru the jacket. I stripped off the jackets on the lowest connection, and made sure there was plenty of wire showing on the upper gauge where it goes thru the connectors.
And double check the direction of the plug in the back of the gauge, it goes one way, but It will go in backwards....(I did that too when i started to get frustrated)
By the time I took wires out and put the back a couple of times they were stripped pretty good. But what the heck, can't hurt to finish off what little cover is left. Still thinking ground, power is making contact.
 
Reply
Old Oct 6, 2010 | 08:02 PM
  #8  
Bobbys Big Red Rig's Avatar
Bobbys Big Red Rig
Thread Starter
|
Senior User
Joined: Aug 2010
Posts: 299
Likes: 1
From: Anderson SC
Club FTE Silver Member

Originally Posted by Bobbys Big Red Rig
By the time I took wires out and put the back a couple of times they were stripped pretty good. But what the heck, can't hurt to finish off what little cover is left. Still thinking ground, power is making contact.
Ok guys I got it figured out. First I got Clay at Riffraff on the phone. We went thru my wiring and all checked out good, still nothing. Clay offered for me to send them back and if he could not get them working he would send me a new set of everything. I wanted one more day to trouble shoot. He told me how to check the ground and it was good but tried grounding to battery just to make sure it was good enough. Like have have said before I had power into the connector with good contact. Decided to try a different power source, that did the trick. There are a couple of light wires that are ignition powered but do not supply enough power to run gauges. Hooked to a 14ga wire that worked fine. Thanks for all the input, you guys are great.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Ford Truck Tragedies

 Joe Kucinski
story-1

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

 Brett Foote
story-2

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

 Michael S. Palmer
story-3

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

 Verdad Gallardo
story-4

10 Best Ford Truck Engines We Miss the Most!

 Joe Kucinski
story-5

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

 Brett Foote
story-6

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

 Michael S. Palmer
story-7

10 Most Surprising 2026 Ford Truck Features!

 Joe Kucinski
story-8

Top 10 Ford Trucks Coming to Mecum Indy 2026

 Brett Foote
story-9

5 Best / 5 Worst Ford Truck Wheels of All Time

 Joe Kucinski
Old Oct 6, 2010 | 08:04 PM
  #9  
Franko72's Avatar
Franko72
Molon Labe
15 Year Member
Joined: Dec 2006
Posts: 5,272
Likes: 1
From: Alaska
Club FTE Silver Member

Sweet deal. Glad to hear they are working.
 
Reply
Old Oct 6, 2010 | 08:23 PM
  #10  
Bobbys Big Red Rig's Avatar
Bobbys Big Red Rig
Thread Starter
|
Senior User
Joined: Aug 2010
Posts: 299
Likes: 1
From: Anderson SC
Club FTE Silver Member

Originally Posted by Franko72
Sweet deal. Glad to hear they are working.
Fuel Pressure is high. I had installed a FRx and if you do not get the regulater spring centered just perfect it will do that, but you don't know until you install a gauge of some kind. Will play with that this weekend. Turning truck back over to wife for a few days, I only get it on the weekends. The truck that is.
 
Reply
Old Oct 6, 2010 | 08:44 PM
  #11  
Franko72's Avatar
Franko72
Molon Labe
15 Year Member
Joined: Dec 2006
Posts: 5,272
Likes: 1
From: Alaska
Club FTE Silver Member

Originally Posted by Bobbys Big Red Rig
Fuel Pressure is high. I had installed a FRx and if you do not get the regulater spring centered just perfect it will do that, but you don't know until you install a gauge of some kind. Will play with that this weekend. Turning truck back over to wife for a few days, I only get it on the weekends. The truck that is.
Thats not too bad, when I was married......... OH, you mean the truck.
 
Reply
Old Oct 6, 2010 | 09:08 PM
  #12  
Diesel Submariner's Avatar
Diesel Submariner
Senior User
Joined: Jun 2010
Posts: 323
Likes: 0
From: Victor Harbor South Aust
Question Fuel Press

Originally Posted by Bobbys Big Red Rig
Fuel Pressure is high. I had installed a FRx and if you do not get the regulater spring centered just perfect it will do that, but you don't know until you install a gauge of some kind. Will play with that this weekend. Turning truck back over to wife for a few days, I only get it on the weekends. The truck that is.
G'day Bobby,

Real glad ya got it sorted mate.

I too fitted the RRFRx. I was aware of the need to centre the little spring to avoid too high a delivery fuel pressure.
I've run and tested for leaks and have had no issues or problems and am happy with this mod.
However; if the only way to be sure that the spring was centred and fuel pressure not too high is to fit a guage as you have ... how else do I know if I got it right
For instance; are there any symptoms I should be on the look out for?
If indeed the spring is not centred, can any damage be done?
Would it overload the electric fuel fuel pump causing it to fail or blow the fuse etc.
Out of interest; how many miles had you been running your truck with this mod before you discovered the higher fuel pressure.
I also believe that RRDs mod incorporates the so called "Shim" designed into it so as to slightly increase the fuel pressure above 65psi anyway.
If this is true, could your higher fuel pressure be attributed to that?

Cheers
Reg.
---------------------------
Aussie spec Brazilian built 2005 (US 2003) F-250 Superduty 4x4 7.3Ltr Powerstroke: AIS Intake, Zoodad, Cowl Hood, AIH Delete, DIY CCV, BTM muffler, MBRP 4” Black Tip, RiffRaff FRx, JWVB, ARB Air Lockers Front & Rear, V10 Tranny cooler in series with Stock Tranny cooler, Deep Tranny Pan, ARB Bull Bar, Edge Evo with Dash Pod & EGT pyro, Long Range Fuel Tank, VMS in Dash GPS Street & Off Road Nav, Toyo OPAT AT 305 70R 16”on 10” Rims, Moog Greasable Ball Joints, HD Suspension & Leveling Spring for GVWR (GVM) Upgrade to 5,000Kg.
fficeffice" /><O></O>
 
Reply
Old Oct 7, 2010 | 08:18 AM
  #13  
Bobbys Big Red Rig's Avatar
Bobbys Big Red Rig
Thread Starter
|
Senior User
Joined: Aug 2010
Posts: 299
Likes: 1
From: Anderson SC
Club FTE Silver Member

Originally Posted by Diesel Submariner
G'day Bobby,

Real glad ya got it sorted mate.

I too fitted the RRFRx. I was aware of the need to centre the little spring to avoid too high a delivery fuel pressure.
I've run and tested for leaks and have had no issues or problems and am happy with this mod.
However; if the only way to be sure that the spring was centred and fuel pressure not too high is to fit a guage as you have ... how else do I know if I got it right
For instance; are there any symptoms I should be on the look out for?
If indeed the spring is not centred, can any damage be done?
Would it overload the electric fuel fuel pump causing it to fail or blow the fuse etc.
Out of interest; how many miles had you been running your truck with this mod before you discovered the higher fuel pressure.
I also believe that RRDs mod incorporates the so called "Shim" designed into it so as to slightly increase the fuel pressure above 65psi anyway.
If this is true, could your higher fuel pressure be attributed to that?

Cheers
Reg.
---------------------------
Aussie spec Brazilian built 2005 (US 2003) F-250 Superduty 4x4 7.3Ltr Powerstroke: AIS Intake, Zoodad, Cowl Hood, AIH Delete, DIY CCV, BTM muffler, MBRP 4” Black Tip, RiffRaff FRx, JWVB, ARB Air Lockers Front & Rear, V10 Tranny cooler in series with Stock Tranny cooler, Deep Tranny Pan, ARB Bull Bar, Edge Evo with Dash Pod & EGT pyro, Long Range Fuel Tank, VMS in Dash GPS Street & Off Road Nav, Toyo OPAT AT 305 70R 16”on 10” Rims, Moog Greasable Ball Joints, HD Suspension & Leveling Spring for GVWR (GVM) Upgrade to 5,000Kg.
fficeffice" /><O></O>
Have put about 3k on it since FRx, nothing made me think pressure was high. Had read a lot of other post on the FRx and pressure gauge seems to be the only way to know. One post, the guy was sure he had it centered but his gauge was showing 95 psi, He talked to Clay at Riffraff and Clay walked he tru it again. Pressure dropped down to about 65 or 68.
Thinking back I had put a NAPA fuel filter in afterwards and could not get it to stop leaking around the cap. Replaced it with a Motorcraft which has an o' ring near the bottom of filter and leak stopped. No other problems that I noticed.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jemini
1987 - 1996 F150 & Larger F-Series Trucks
5
Dec 9, 2014 12:59 PM
BadDogPSD
1994.5 - 1997 7.3L Power Stroke Diesel
22
Feb 11, 2014 05:12 PM
Baxdoc
Electrical Systems/Wiring
4
Apr 3, 2011 04:34 PM
Waltdog
1999 - 2003 7.3L Power Stroke Diesel
3
Dec 5, 2010 01:53 PM
AmericanMade
1999 - 2003 7.3L Power Stroke Diesel
6
Aug 28, 2010 09:54 AM




All times are GMT -5. The time now is 01:28 AM.

story-0
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-1
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-2
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-3
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-4
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-5
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-6
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-7
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE
story-8
Top 10 Ford Trucks Coming to Mecum Indy 2026

Slideshow: Here are the top 10 Fords coming to Mecum Indy 2026.

By Brett Foote | 2026-05-04 13:49:49


VIEW MORE
story-9
5 Best / 5 Worst Ford Truck Wheels of All Time

Slideshow: The 5 best and 5 worst Ford truck wheels of all time

By Joe Kucinski | 2026-04-29 16:49:01


VIEW MORE