Just installed an airdog 150 on a 04.5
 

First off if you have a 04.5 prepare to do some cutting/drilling/grinding on the mounting bracket, there is a factory bracket welded to the frame rail that is in the way, never the less 3 hours to install is incorrect.Called Toby,he said they over build the bracket... for the cutting/drilling/grinding for a 04.5, it would have been nice to know this before all the work to the bracket [verymad] . I was only able to drive arount the block, truck ran fine, shut it off and now the check engine light is on and it did not want to start [verymad]. My origanal lift pump has 101000 miles and it was still going strong, truck would start always very easy, now I have an issue with a brand new pump...

Check the codes......may be a connector or something else you were in contact with while under there. Doesn't mean it is the new pump. Still could be, but double check everything first. To check codes, turn key from off to on ( not cranking) 3 times ending in the on position. Codes will read out in the odo screen.

I feel for you. I had the same problem. You can look in my gallery and see what I did. After my tranny is in I will cut and weld the bracket and get rid if that pinch plate thing.

just checked for a code
 

here it is P0628 I have no idea what it is ??

P0628 Low Voltage Detected At The Fuel Lift Pump Relay

O.K. so you could be right! Sounds like a wiring issue. How was it supposed to be wired in? Using the factory wiring? If not, there is your code problem.

Wow! Sorry about that! Here is a link to the wiki code list here on DTR.

http://wiki.dieseltruckresource.com/wiki/Computer_codes

low voltage at the lift pump,thanks. I am thinking its the heat plug, I will plug it back in tomorow morning and report. Toby the tech at pureflow told me to unplug the power plug going to the factory lift pump on the backside of the filter canister and then the fuel heat plug on the front side of the canister, then there is the water in fuel plug at the bottom of the canister, he said some you can leave plugged in some not , I left that one alone, since there was fuel still in the canister it should make the water in fuel dash light stay off, and it did, so thats why I am thinking its the fuel heat plug, well see...

How ironic, low voltage at the lift pump [duhhh] after 100,000 miles I have been waiting for this code to show up and it decides to show after I unhook the pump to upgrade it,[laugh]

So.....do you just plug it in to the factory wiring, or did yo uwire up a different relay? As long as you ise the factory lift pump wiring to trigger the relay it shouldn't set a code.

BINGO!!! thats how I installed mine...the instructions tell you to wire it on soon as the key turns on but then the pump would run just sitting there[yuk]

I wired my BLACK wire on the airdog harness directly to my stock lift pump trigger(orange with red tracer on my 06)..pump runs just like stock now[guitar]

Mark, when are you gonna get the full write up posted?

I will start working on it now...but it may take a couple hours to gather it all up for the post..

Get r dun Mark! lol.... I will be installing one in my truck in a couple weeks.

ok , so I leave the heat plug unplugged ? I have the single red wire going to the engine fuse box when the ignition key is on, the pump runs constant without the engine started,or should I run the red wire to one of the 2 wires that went to the factory lift pump motor ? or leave the red wire at the fuse box and run the black wire to one of the factory lift pump wires ?

With the pump running constant before starting, could this be the hard starting issue ?

my install was on a 06 so I dont know if it is different on your 04.5....
the only wires I hooked up on the airdog harness were the "black" trigger wire and the "red" and "green" battery wires......I left EVERYTHING else hooked up...my water separator is still hooked up just like stock..electrical and fuel lines...but my stock cp3 supply line has been leaking so I bought a plug to cap it off at the stock water separator....

Well before I did anything I called Toby to explain everything, first he said that for 04.5 models the pump should run constant with the key on but not running, the factory pump would not do this, you could get it to cycle if you bumpped the starter then it would stop until the truck started,oh well. Second , the fuel heat plug would not cause the code so that is still unplugged. Third I said it is hard starting now and there is a low voltage at the lift pump relay code, he said to unplug the relay at the fuse box. He thinks the hard starting is a result of a loose fitting on the suction side of the pump causing vacum to drain fuel back into the tank ,which is putting air into the system, this new pump so far is not living up to its hype but i will keep at it.

Willys,my airdog harness has a red single lead wire which I am assuming yours is black, along with the red and green that goes to the battery. Where you hooked your black would that be one of the 2 wires that powered your factory pump ? if so I would think I can use one of my wires that powered my factory pump? agree? Thanks.

assuming your "red" wire is the same "trigger wire" as my "black" wire..then yes you could....the AD instructions said to cut the outside "black" wire on my FACTORY lift pump harness by the tank.....well my black wire was a ground on my truck...so I used my volt meter to check for the lift pump voltage by having my dad turn the key on and I would watch the meter to see what wire stays powered for the 30sec lift pump prime...mine was orange with a red tracer...instead of cutting the factory "trigger" wire by the pump plug I traced it up the frame rail to right before it bends on top of the frame rail where you cant reach it. I found the orange with red tracer and cut it...then I put a water proof spade connector on the orange/r wire and a spade on the AD harness black trigger wire..then I just hooked the red and green battery wires up and the AD150 ran just like my stock pump...turn key "on" pump runs for 30sec prime and then stops...soon as I start to crank the engine the pump starts back up and gives me 18psihttps://www.dieseltruckresource.com/.../guitarist.gifclear as mud???????

do 04.5 trucks have lift pumps that run all the time when the key is on??I thought it was the same as all the other trucks and that it would prime the system on the first key turn....then you had to bump the starter to get it to stay on for another 30sec???if your truck is like this I don't see why you cant run your wiring the same way??

I won't even start my install untill 53 puts up the HOW TO [laugh]

ok then , yes my 04.5 operates the same as yours so I will try that mod,have you noticed if your truck starts faster ? or the same, thanks again.

starts the same as stock...seems to idle a little smoother too.

Forgot to add, I can get the water seperator filter off no problem, but the main filter you have to drop the skid plate or cut a hole in the skid plate . Another surprise that is not mentioned along with the bracket for my 04.5 not sure about other years.

I changed my mount to fit parallel to the frame so mine both come off with out removing any skids...

I have the 04.5. I used the 05 and up harness. The only connections I made was BATT+, BATT-, Airdog pump connection, and plugged into factory fuel pump connection at fuel pump/filter housing. I am not sure why you guys are running a trigger wire. Only the 03-04 harness uses a trigger wire and you can use the 05+ harness instead.

my 06 does not have a pump connection on the stock filter...it's back by the tank...
are saying I should have been able to plug in my AD without ever having to splice wires????
you would still have to kill the power for the intank pump and it would still need to be plugged in so your fuel tank gauge works.

You should have a plug at the ecm on the engine,should be a grey two wire. You just unplug the factory pump plug and plugin the airdog harness right at the ecm.

REALLY!!!?????
I will be kinda bummed if I got a old style harness:( witch I must have......I want the harness you got...I think I will call and see what going on..thanks for the heads up:cool:

can you take a pic of the said plug????
please[coffee]

that would mean your harness has 2 of the Deutsch connectors right??? one for the airdog pump and one for the ecm connection in the engine??

I have been wondering why AD did not put a female conector on the harness to plug into the male power lift pump , how much could that save,***. anyways I will go buy one and do it myself, after I make a phone call Monday! Willys did you recieve the pressure lite in yours ? I did, Toby said they have been having some packaging/shipping issues. Maybee they can send 2 harnesses [verymad]

I did not get a light with mine...I figured I could tell by looking at my FP gauge reading's...I checked my truck and it does not seem to have the plug for the pump by the ECM...I looked in my manual and noticed it had a connector on the frame rail...but its dumping snow right now so I will have to check to see if it is a fuel pump plug later....

http://i220.photobucket.com/albums/d...c/PC300001.jpg

I have been wondering if I got the wrong harness after reading some different threads and it seemed like my harness was different. I'm working on the install today, trying to do something a lil' funky with the liberty canister. Hope it works out!

Oh and I got the light kit with mine, but I was thinkin' about not using it......hmmm one more hole in the dash, why not? [duhhh]

cool thanks for the pic:cool: my harness is not the same as what you guys have...I need to make sure that harness will even work for me???
can you snap a pic of the plug on/by the ECM that these others are plugging into???
Thanks

I haven't quite got that far yet just doing lunch right now. And if you look at those two plugs they are ran in that same sheath and then split near the end to 2 of those corrugated tubes so that is leading me to believe I am supposed to be able to plug that thing in near my airdog. We'll see.

The second plug on the wiring harness end that goes to the AirDog pump motor is for the indicator light pressure switch.

We are taking a second look at the Dodge stock fuel pump lead. Chrysler may have just added an 'extension' lead from the original Deutsch ECM pump lead connector to the pump in the tank. If this is the case, we will change the wiring harness for those year trucks. It sure would make it nice. We will also exchange the wiring harness for this change, if this is the case, for any one who has not as yet installed their AirDog.

It all comes out in the wash!

Charlie

Ok I think you may have it back wards???? not bashing just trying to get this straight....03-04.5 trucks ALL have the plug you are talking about cause they had filter mounted lift pumps...so you must have got a 03-04.5 harness not a 05+....the 05+ trucks dont have the 2 pin plug...I searched and did not see it..I followed the orange with red stripe wire all the way to the front and I cant see the plug you are talking about...I even scoped GDP install for the 05+ trucks and they have you cutting and splicing wires and connectors too.....thoughts??????

Charlie is this a 05+ harness or a 03-04.5???????
http://i81.photobucket.com/albums/j2...f/PC300001.jpg

And do I plug the green one in here at the filter housing?
http://i220.photobucket.com/albums/d...c/PC300052.jpg
http://i220.photobucket.com/albums/d...c/PC300053.jpg
http://i220.photobucket.com/albums/d...c/PC300054.jpg

Do I need to strip the green one out of the corrugated tube and connect it at the filter housing. Then find the trigger pump wire and tie the red one to it?

The Airdog instructions say "Disconnect the OE fuel pump lead from the ECM connection (Deutsch, two pin connector). Connect the AirDog relay activation lead to the OE fuel pump ECM connection."
Toby at airdog said to trace the wires, he said they should be by the ecm. I think you might have found them on the frame. I happened to find that plug on my 04.5 where the dealer added a relay when the in-tank pump was installed. I had Toby send both harnesses because he was not sure what was used on the 04.5. I used the deutsch plug so if for some chance the airdog failed i could just plug the stock pump back in.
Lifting the bed is not bad at all is it. I like what you did for the return. I had to use a couple different reducers.

Ok I think you may have it back wards???? not bashing just trying to get this straight....03-04.5 trucks ALL have the plug you are talking about cause they had filter mounted lift pumps...so you must have got a 03-04.5 harness not a 05+....the 05+ trucks dont have the 2 pin plug...I searched and did not see it..I followed the orange with red stripe wire all the way to the front and I cant see the plug you are talking about...I even scoped GDP install for the 05+ trucks and they have you cutting and splicing wires and connectors too.....thoughts??????
I am just going by what Toby said. He sent the 05 harness to see if would work. You may be right thought. Toby told me on the early ones you need to find a keyed on hot lead. So I assumed that the 05+ did not have the trigger wire. I emailed Toby everything that I found different with the 04.5 since he was not sure on that year. I never did hear back. I called him while I was doing the install and he had me looking at the ECM for the two pin.