What are normal Intake Temps with intact EGR? - Competition Diesel.Com

4x4dually · 01-14-2013, 03:36 PM

I logged this data while the EGR was still intact on my 2009. I'm pretty certain I've converted the correct blocks of data to give me "intake temp"...but it looks high. Is this about the right temps that the EGR would be dumping back into the intake? You are seeing about 190 seconds worth of data here. Opinions? I got the values by swapping the two hex data bytes, converting to decimal, and dividing by 64. This was at idle at about a 130-140F, not warmed up engine.

Is that just the EGR actuator opeing and closing?

Gibson · 01-14-2013, 04:01 PM

This is the probe on the plenum plate right?

4x4dually · 01-14-2013, 04:06 PM

Not sure where it is located. Not that familiar with it yet. All I know is that it reads as "intake temp" on the off-the-shelf programmers.

Gibson · 01-14-2013, 04:10 PM

There's a few different temp sensors on a 6.7 intake. One in the air box, one in the tube between intake horn and cooler and then one in the plenum plate.

I know on an h&s mini maxx to read egt's you attach an EGT probe to the temp sensor on the EGR tube. You then select EGT probe '2' on mini maxx to read it.

4x4dually · 01-14-2013, 04:16 PM

That data is "snooped" with can capture from a Mini Maxx. I'll have to find out which temp that is reading exactly. Thanks.

Gibson · 01-14-2013, 04:24 PM

Just unhook the sensors one by one and watch the value. It will either go to zero or max.

4x4dually · 01-14-2013, 04:26 PM

Yip. I'll mess with it when I get a chance. Does that look right as far as temps of air coming back around the EGR loop and getting dumped into the motor? NO MORE!!!!

joefarmer · 01-15-2013, 10:43 AM

I think it's reasonable to see those numbers, but I've never had an EGR truck to compare.

4x4dually · 01-15-2013, 10:59 AM

Branodn, do you have experience sending requests to the ECM and reading the data returned. I need to work on the timing now. I know what to send and where the data is in the packets returned.....any tutoring available?

joefarmer · 01-15-2013, 11:19 AM

I know nothing at this point. I have a CAN device that should be arriving shortly, but I haven't had the chance to play.

4x4dually · 01-15-2013, 11:23 AM

Quote:

Originally Posted by joefarmer

I know nothing at this point. I have a CAN device that should be arriving shortly, but I haven't had the chance to play.

When you get ready to play, give me a shout. I can maybe help you get started faster so that you can figure out the really hard stuff.

Cummins610 · 01-15-2013, 11:58 AM

How can the intake temps read higher than your egts at idle?

4x4dually · 01-15-2013, 12:01 PM

Quote:

Originally Posted by Cummins610

How can the intake temps read higher than your egts at idle?

Dunno. I don't have the EGT probe in yet so I don't have an idea what idle EGT's are in this truck. With the e-brake enabled I'm sure they are higher to "warm" the motor? Don't know. Still learning this electronic SOB.

joefarmer · 01-15-2013, 10:01 PM

Quote:

Originally Posted by 4x4dually

When you get ready to play, give me a shout. I can maybe help you get started faster so that you can figure out the really hard stuff.

Find me the 3 VIN packets from the TIPM and you have a deal!

4x4dually · 01-16-2013, 08:58 AM

Quote:

Originally Posted by joefarmer

Find me the 3 VIN packets from the TIPM and you have a deal!

I'll look into that for ya. No promises....

01-14-2013, 03:36 PM	#1
4x4dually Name: 4x4dually Title: Moderator Status: Not Here Join Date: Jan 2007 Location: Stillwater, OK Member`s Gallery Posts: 31,812	What are normal Intake Temps with intact EGR? I logged this data while the EGR was still intact on my 2009. I'm pretty certain I've converted the correct blocks of data to give me "intake temp"...but it looks high. Is this about the right temps that the EGR would be dumping back into the intake? You are seeing about 190 seconds worth of data here. Opinions? I got the values by swapping the two hex data bytes, converting to decimal, and dividing by 64. This was at idle at about a 130-140F, not warmed up engine. Is that just the EGR actuator opeing and closing? __________________ Jory 2009 4x4 3500 MCLB "There are people far less intelligent than you making a living doing this stuff." - Jeff Mumau Last edited by 4x4dually; 01-14-2013 at 03:38 PM.

01-14-2013, 04:01 PM	#2
Gibson Name: Gibson Title: There's no love in diesel Status: Not Here Join Date: Oct 2008 Location: Gonzales, Texas Member`s Gallery Posts: 4,076	This is the probe on the plenum plate right? __________________ all my trucks are broke down 2003 Dodge 2500 Cummins QC SRW

01-14-2013, 04:10 PM	#4
Gibson Name: Gibson Title: There's no love in diesel Status: Not Here Join Date: Oct 2008 Location: Gonzales, Texas Member`s Gallery Posts: 4,076	There's a few different temp sensors on a 6.7 intake. One in the air box, one in the tube between intake horn and cooler and then one in the plenum plate. I know on an h&s mini maxx to read egt's you attach an EGT probe to the temp sensor on the EGR tube. You then select EGT probe '2' on mini maxx to read it. __________________ all my trucks are broke down 2003 Dodge 2500 Cummins QC SRW Last edited by Gibson; 01-14-2013 at 04:14 PM.

01-14-2013, 04:24 PM	#6
Gibson Name: Gibson Title: There's no love in diesel Status: Not Here Join Date: Oct 2008 Location: Gonzales, Texas Member`s Gallery Posts: 4,076	Just unhook the sensors one by one and watch the value. It will either go to zero or max. __________________ all my trucks are broke down 2003 Dodge 2500 Cummins QC SRW

01-15-2013, 10:43 AM	#8
joefarmer Name: joefarmer Title: MR. Supreme Overlord Status: Not Here Join Date: Jul 2006 Location: ohio Member`s Gallery Posts: 6,137	I think it's reasonable to see those numbers, but I've never had an EGR truck to compare. __________________ brandon'); DROP TABLE Users;-- 1948 Dodge 1.5t 12v RH swap \| 99 F250 12v RE test rkt \| 11 X5 'no soup' \| 08 F250 CR RE swap \| 05 2500 CR 68 standalone firepunk.com

01-14-2013, 04:06 PM	#3
4x4dually Name: 4x4dually Title: Moderator Status: Not Here Join Date: Jan 2007 Location: Stillwater, OK Member`s Gallery Posts: 31,812	Not sure where it is located. Not that familiar with it yet. All I know is that it reads as "intake temp" on the off-the-shelf programmers.

01-14-2013, 04:16 PM	#5
4x4dually Name: 4x4dually Title: Moderator Status: Not Here Join Date: Jan 2007 Location: Stillwater, OK Member`s Gallery Posts: 31,812	That data is "snooped" with can capture from a Mini Maxx. I'll have to find out which temp that is reading exactly. Thanks.

01-14-2013, 04:26 PM	#7
4x4dually Name: 4x4dually Title: Moderator Status: Not Here Join Date: Jan 2007 Location: Stillwater, OK Member`s Gallery Posts: 31,812	Yip. I'll mess with it when I get a chance. Does that look right as far as temps of air coming back around the EGR loop and getting dumped into the motor? NO MORE!!!!

01-15-2013, 10:59 AM	#9
4x4dually Name: 4x4dually Title: Moderator Status: Not Here Join Date: Jan 2007 Location: Stillwater, OK Member`s Gallery Posts: 31,812	Branodn, do you have experience sending requests to the ECM and reading the data returned. I need to work on the timing now. I know what to send and where the data is in the packets returned.....any tutoring available?

01-15-2013, 11:19 AM	#10
joefarmer Name: joefarmer Title: MR. Supreme Overlord Status: Not Here Join Date: Jul 2006 Location: ohio Member`s Gallery Posts: 6,137	I know nothing at this point. I have a CAN device that should be arriving shortly, but I haven't had the chance to play. __________________ brandon'); DROP TABLE Users;-- 1948 Dodge 1.5t 12v RH swap \| 99 F250 12v RE test rkt \| 11 X5 'no soup' \| 08 F250 CR RE swap \| 05 2500 CR 68 standalone firepunk.com

01-15-2013, 11:58 AM	#12
Cummins610 Name: Cummins610 Title: Rookie Status: Not Here Join Date: Oct 2009 Location: Alberta Member`s Gallery Posts: 455	How can the intake temps read higher than your egts at idle? __________________ 2005 CR - 1389hp with spray, S4 Single