I have pretty much completed putting a CTD into my Excursion. Mostly a bit of tidying up to do. There's a couple of things I've got questions about after driving it for a little while now. First, my rpm's seems to be governed at about 2200. Does that sound right? To me it seems a bit low but it's my first diesel so I'm not sure. Also, the engine is idling at around 1200 rpm which I know is too high. Anybody know what might be causing it. Any help would be appreciated. Thanks.

 

The engines in most of the newer trucks are 24 valve and most are rev limited at or around 3200 rpm. As far as idle my 04 is at 650-800 in gear and maybe 7-800 in neutral. Have you tried an apps reset yet. Do a search for procedure, otherwise sounds like you still have a small bug to find and fix.

Sounds nice, like to see pics when you can.

Don

 

When I put the peddle to the floor, the rpms climb to 2200 and that's all I can get. At that point I can feel something shu down - almost as if I let off the peddle a bit and then stays at 2200. I did an apps reset earlier when I was trying to work out some tranny problems I was having but I'll do it again tomorrow. Here's a couple of pics Don.

 

What does it do if you go full throttle in park or neutral, its governed, so its not going to go past its high idle setting. I would see what max RPM you can get, then try it going down the road. If it get higher i neutral, I would do some checking into the fuel delivery system to make sure you are getting plenty of fuel under load.
If the RPM doesn't change, I would check for crankshaft speed with a phototach, maybe its just a wrong signal to/from the tach???
At 1200 RPM with an automatic, Your trans should be trying to drag you thru a red-light and overheating. ??

 

I'd put a voltmeter on the APPS signal wire, make sure you're getting a full sweep. A scanner would be the easiest way to ensure both idle verification switches are working too.

 

[QUOTE=At 1200 RPM with an automatic, Your trans should be trying to drag you thru a red-light and overheating. ??[/QUOTE]

1200 RPM is only in park and neutral, in gear it's around 800 or 850. I haven't noticed the tranny to want to keep pulling.

 

Make sure your mass air sensor is hooked up and working i forgot to plug mine back into the airbox oneday and like you said wouldnt go over 2200 rpms, simple but it could be.

 

I know the mass air sensor is hooked up. I don't know if it's working though. Would there be a code if it wasn't? I tried going full throttle in neutral today and then I had no problem hitting 3200 RPM. Could the fact that the ECM is no longer hooked up to the tranny be the problem or part of it anyway? I also did the apps reset today. No change.

 

Nice looking rig! I don't know how to help you with your problem though.

 

My engine light never came on and it did the same thing nuetral it went to 3200 but driving it wouldnt break 2200 sounds like it to me.

 

Nice truck man!
I have a question, what is a app reset?

 

Sorry I didn't get back sooner. I'm in the middle of building a new house and it's been a bit busy. Apps reset is basically teaching the the accelerator on 24 valve ISB engines to reread the position of the pedal and it's limits. Sometimes this procedure solves poor shifting or acceleration. Something to that effect. I think there are posts on what the procedure is.

 

Wow, nice looking rig. I'm just getting ready to start the same exact swap

I've got a 2000 V10 Ex now and implanting a 04 305hp engine, 48RE trans (using the same ATS controller as you). I've been planning this swap for over a year in my free time and accumulating parts as well.

I'd love to discuss your swap with you sometime, send me a PM with your phone number and I'll give you a call.

Anyways, back to your problem, is it the SKIM security feature in your ECM? You can call a dodge dealer with your donor truck VIN # and ask if it has the SKIM feature. I've heard that it will only allow a certain percentage of fuel to flow out the injectors? Like 30% or something... May explain why it can rev to 3200 in nuetral (no load) but only 2200 in drive?

 

I just read your other post about transmission troubles. It sounds like you may be unsure about where exactly the replacement ECM came from. If so you certainly won't have the VIN # from the donor truck.

In that case you need to have someone reflash your ECM with the proper firmware/software stuff (for ex. 2004 engine, auto transmission, no skim feature) as well as assign it a VIN #. To do this you need to find someone with the exact same setup and borrow their VIN #.

I'm in the process of doing the same thing as my engine was never installed in a truck thus has no donor VIN # assigned to it.

There are only two people that I am aware of that can do this reflashing of the ECM. Send me a PM for more info...

 

Now that is a beautiful marriage. I thought about doing that to my 02' F-250 PSD when and if the motor gave out. I bought a Cummins motor but it just so happens to have a Dodge wrapped around it .