2005 CRD swap into fj40

fjdiesel · **Posted:** Wed Jan 26, 2022 5:16 pm

@krb the wool product was from Cascade Audio Engineering.

fjdiesel · **Posted:** Sun Feb 13, 2022 9:35 pm

A couple questions. I hope you guys can answer for me.

On the oil pan in the lower front there is a plug in the gally that goes to the oil filter. Does anyone know what the thread is for that? M22x1.50???

Second one, what is the thread on the oil pressure sensor? I haven't pulled it yet. Was hoping someone knew. Or is there a better place to put another oil pressure sensor?

Thanks in advance for the help.

WWDiesel · **Posted:** Mon Feb 14, 2022 2:07 am

The oil pressure switch is 1/8 x 27 NPTF, standard.
Not sure about the other one.

fjdiesel · **Posted:** Mon Feb 14, 2022 8:34 am

Thanks WWdiesel

I did find a thread on here about putting an oil pressure gauge in the block ports that feed the turbo. I think I will try that for the oil pressure.

The other port in the oil pan I kinda wanted to put in an oil temp sensor. But I can drill and tap the pan as well.

WWDiesel · **Posted:** Mon Feb 14, 2022 3:13 pm

You could put a "Tee" in where the oil pressure switch is located and put the temperature sensor there.
Just a thought, and would save drilling and taping the oil pan.
There are also some threaded plugs in the oil galley on the right side of the block.
You might could use one of them to add a temperature sensor.
There is one plug on each side of where the turbo oil supply line is attached.
:idea:

krb · **Posted:** Tue Feb 15, 2022 5:33 am

The pan could give a lower reading than a port in the block where the oil is actively flowing correct? May only be a few degrees and insignificant? I don't know, just thinking out loud...

RockinRam96 · **Posted:** Tue Apr 05, 2022 6:00 am

When you re-pinned the ECM to run without all the Jeep side of things, are you just simply removing those wires? Or are you pulling wires out and swapping their position in the ECM so everything runs properly? Or are any wires that you add are to make the dash and other things work properly?

Re-pinning really interests me. How do you know what wires should go where if you’re swapping them around? I assume you reference a wiring schematic.

Sent from my iPhone using Tapatalk

fjdiesel · **Posted:** Wed Apr 13, 2022 3:04 pm

WWDiesel wrote:

You could put a "Tee" in where the oil pressure switch is located and put the temperature sensor there.
Just a thought, and would save drilling and taping the oil pan.
There are also some threaded plugs in the oil galley on the right side of the block.
You might could use one of them to add a temperature sensor.
There is one plug on each side of where the turbo oil supply line is attached.
:idea:

I did end up ordering a fitting and using one of the threaded ports on the pass side of the block. We will see how it works...

fjdiesel · **Posted:** Wed Apr 13, 2022 3:05 pm

krb wrote:

The pan could give a lower reading than a port in the block where the oil is actively flowing correct? May only be a few degrees and insignificant? I don't know, just thinking out loud...

That was my thought as well.

fjdiesel · **Posted:** Wed Apr 13, 2022 3:18 pm

RockinRam96 wrote:

When you re-pinned the ECM to run without all the Jeep side of things, are you just simply removing those wires? Or are you pulling wires out and swapping their position in the ECM so everything runs properly? Or are any wires that you add are to make the dash and other things work properly?

Re-pinning really interests me. How do you know what wires should go where if you’re swapping them around? I assume you reference a wiring schematic.

Sent from my iPhone using Tapatalk

I spent $300 on a factory Jeep Repair manual. And I will say it is worth its weight in gold. I did find online after I bought it that I could download it, so I have that one now as well.

Surprisingly these are basically setup to be stand-a-lone from the factory... I say basically a little loosely.. But, I ended up with 3 wires for the (ECM, TCM, and Front mounted computer) that were getting there power from the Body Control Module. So I ran a separate fuse panel that I powered with a relay and key on power. I have not ran it yet, but I turned it over the other day with the key on my fj40.

I should be starting it in a week, I want to have coolant in it before starting it, the last couple days I have been working on getting the exhaust hooked up.

I lost anything to do with the dash... Which in my case was just fine, I already had a Dakota Digital dash in my 40. So I just ran a second set of sensors for that. The same as it was with the VW swap.
Dakota Digital has a module that will plug into the DLC that should give me the CEL , so I think I am gonna try that.

I did de-pin some things that I am no longer gonna use. Such as the EGR, Flap valve, Viscous heater, MAF sensor, transfer case wires. When I put the scan tool on it after disconnecting the ABS, BCM, it just said, No communication with.... module.

Sorry for the late response.

Soon we will see if it worked. I just don't want to run it until I get the radiator in it and coolant added...

fjdiesel · **Posted:** Mon May 30, 2022 2:47 pm

Got the Liberty/FJ40 on the road this last Thursday. Put a few hundred miles on it this weekend!! Extremely happy with the power and performance so far. I have a few bugs to work out, which is to be expected...

One question I have for you guys is I have an UltraGauge display that plugs into the OBD port. I have 2 of these units so I know they are both good. I have verified in other vehicles. But on both my 05 Daily driver Liberty and my 05 Liberty/FJ40 conversion, after about 20 mins(roughly-and it varies) the unit shuts off. It acts like the Liberty computer is turning something off... not sure what that is... I believe it looses communication.. Has anyone had any experience with this? Or have any idea which wire that might be?

Here it is the other day almost on the road!!

And here it is after the first test drive!!

WWDiesel · **Posted:** Mon May 30, 2022 3:56 pm

Sweet, love the conversion, know you will enjoy it.

As to your question, it is data bus overload according to what I have learned and read. The Jeep Liberty Diesel uses a (PCI) data bus system.
If communications with the Data Connector Module you have plugged in become overloaded, the ECM will default to a non-communication mode to protect the more important functions of the ECM for operation of the engine.
You may want to try some different data monitor connectors and find one that does not overload the data highway.
A hardwired bus connector may be better suited for full time communication?
Maybe some others on here can chime in as to what they have had good success with....

fjdiesel · **Posted:** Mon May 30, 2022 4:07 pm

WWDiesel wrote:

Sweet, love the conversion, know you will enjoy it.

As to your question, it is data bus overload according to what I have learned and read. The Jeep Liberty Diesel uses a (PCI) data bus system.
If communications with the Data Connector Module you have plugged in become overloaded, the ECM will default to a non-communication mode to protect the more important functions of the ECM for operation of the engine.
You may want to try some different data monitor connectors and find one that does not overload the data highway.
A hardwired bus connector may be better suited for full time communication?
Maybe some others on here can chime in as to what they have had good success with....

Thanks!! So far I am really impressed. I hope to get some bugs wrapped up here quickly and get some mile on it this summer! I was hoping to post a lot more, but it was a hard push to get it in and running this winter.

Good to know about the PCI bus. Yes, I hope others share some more data on a workaround. Thanks!

TURBO-DIESEL-FREAK · **Joined:** Sat Apr 17, 2010 3:29 pm **Posts:** 1167

fjdiesel wrote:

Got the Liberty/FJ40 on the road this last Thursday. Put a few hundred miles on it this weekend!! Extremely happy with the power and performance so far. I have a few bugs to work out, which is to be expected...

One question I have for you guys is I have an UltraGauge display that plugs into the OBD port. I have 2 of these units so I know they are both good. I have verified in other vehicles. But on both my 05 Daily driver Liberty and my 05 Liberty/FJ40 conversion, after about 20 mins(roughly-and it varies) the unit shuts off. It acts like the Liberty computer is turning something off... not sure what that is... I believe it looses communication.. Has anyone had any experience with this? Or have any idea which wire that might be?

Here it is the other day almost on the road!!

And here it is after the first test drive!!

This thing looks FABULOUS!! I hope it runs reliably and you have a ride you can keep for the rest of your life, fjdiesel.

fjdiesel · **Posted:** Tue May 31, 2022 10:03 am

This thing looks FABULOUS!! I hope it runs reliably and you have a ride you can keep for the rest of your life, fjdiesel.[/quote]

Thank you sir.
I hope so as well.

krb · **Posted:** Tue May 31, 2022 10:27 am

Wow, you accomplished a lot and it looks great!

Maybe Yeti (aka Mario?) can help with the data issue? He seems to be the electronic KJ guru from what I can tell.

fjdiesel · **Posted:** Tue May 31, 2022 11:04 am

krb wrote:

Wow, you accomplished a lot and it looks great!

Maybe Yeti (aka Mario?) can help with the data issue? He seems to be the electronic KJ guru from what I can tell.

I have talked to him about a tune. I will ask him about the data issue. I wanted to buy an interface from Dakota Digital that would read RPM, CEL for my dash. But now I am nervous if it will pull too much for the computer and not work after 20 minutes...

fjdiesel · **Posted:** Tue May 31, 2022 11:05 am

@krb

How do you like the Provent? And what is the maintenance schedule you have to do on it?
Thanks Matt

krb · **Posted:** Tue May 31, 2022 11:29 am

So far so good. I don’t have that many miles on it yet, less than 10K probably. Every time I’ve checked it it’s not hardly had anything in it yet. Still getting some oil into the intercooler but that could have been from residual even though I thought I cleaned everything good.

fjdiesel · **Posted:** Tue May 31, 2022 12:46 pm

I have not built my airbox yet. That is next on the list. And I want to keep the intake clean!!

Hopefully I will cool the intake temps a lot with the airbox. At least that is my goal...

On the motor I took out my intercooler was doing its job. VW took intake temp just before entering the motor. And my intake temps were 1.5-2 degrees F of ambient temp.

2005 CRD swap into fj40

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