09 6.7 New to me, OEM IAT probe question - Dodge Cummins Diesel Forum
07.5 - 09 3rd Gen 6.7L Performance Parts Discussion Discussion of Performance Parts For the 6.7L Trucks...NO ADVERTISING

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post #1 of 10 (permalink) Old 04-02-2019, 06:24 PM Thread Starter
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09 6.7 New to me, OEM IAT probe question

Hey guys, I figured I'd start posting here on my new truck. Well new to me, I just bought a 2009 Ram 3500 Laramie 4X4 crew to replace my 06 5.9 dually. I bought the truck at an auction in Omaha NE so I don't know the history but what I do know is that the entire exhaust and DPF has been deleted so it must have some kind of tune in it since I flew to NE and drove the truck 1800 miles back home to Florida. It does have the check eng light on as well as the DPF FULL light & alarm going off and the overhead SEE DEALER NOW or whatever light on. So I removed the EGR last monday and installed a delete kit and it still ran the same. Then a couple of days later I was at the local salvage yard and I found a almost new 2nd Gen turbo setup with a DPS manifold and a BW S300 SX 66 73 80 turbo with a .091 ex hsg, so I snagged it along with the thicker 2008 intercooler. So I've stripped the stock turbo setup along with the stock intake setup also and I am installing a Pusher intake to cleanup the intake side. I have a couple of questions that maybe someone can answer for me. Is the probe that came out of the OEM intake an air intake temp probe? And or does it actually measure IATs for fueling or is it just for the EGR or is it to tell the grid heater when to turn on or off? I was able to get a 1/4" to 1/8" brass reducer at my local hardware store today so I can install it in the Pusher intake if it is worth it. The AC compressor was a little week and the condenser was a little beat up from the road gravel so I am also replacing everything except the evaporator at this time. Basically I am taking this opportunity to change the water pump, serp belt and rad hoses along with cleaning half of Nebraska off of the engine and drive train along with adding some mechanical upgrades. So my intention is to add all of these mechanical parts and see if the truck will run after unplugging all of the stuff on the intake side, or will it go into limp mode? I guess there's only one way to find out right? I just took the exhaust manifold, turbo compressor hsg and a 5.9 thermostat hsg to get ceramic coated today so it will probably be a week or better before I get it all back together to run it and then we'll see. Obviously at that point I will probably need to make a decision on a new tuner and engine monitor device be it a Edge CTS or A pillar pod with gages. I still have my 06 5.9 to use until I get this truck the way I want it. I did an oil analysis and it came back good and all of the fluids are very clean and there is a decal on the passenger side of the trans indicating it's a Mopar reman. The truck has 178k on it. Any tips would be appreciated since this is my first 6.7 and my first electronically controlled engine that I have really messed with since my last hot rod diesels were my 12 valves and my 5.9 I have left basically stock since I purchased it. So I'm kinda ready to turn this one up a little bit.


95 RAM 3500 4X4 12 VALVE, BUILT TRANS, 271 T CASE, GEAR VENDORS O/D, ARP HEAD STUDS, 62/65/13 TURBO, INJECTORS. SOLD. BEING REPLACED WITH 09 RAM 3500 4X4 AUTO LARAMIE, SO FAR 2ND GEN TURBO SETUP, PUSHER INTAKE.
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post #2 of 10 (permalink) Old 04-02-2019, 10:02 PM
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IAT and MAF sensors are located at your intake air filter. At your intake horn is your MAP sensor.

You should have no CELs etc if your truck was tuned properly.
So start shopping for that.
Enjoy your new torque monster when you make it road worthy.
A deleted properly tuned 6.7 will dwarf a 5.9 when towing.

2011,4wd LB/CC 2500 H&S Mini MCC by Tomeygun, BD protect 68rfe VB seperator plate enhanced stall triple disk TC, Super B 64.5/80/.91 3rd gen mani & inline EB, Arp 425s, Fass Titanium 95. Spare Mini in my closet.
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post #3 of 10 (permalink) Old 04-03-2019, 05:37 PM Thread Starter
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Yea, I know my next purchase needs to be a good tune but since I'm so green in the EFI tuning area I'm not sure which one to go with. I know I would like the 5 position switch, but which tune? Motor Ops, GDP, PPEI, Anarchy? My other question, gage pod on A pillar or all of the stacked daisy chain DLC connectors taking up real estate under the dash for a Edge CTS? Next question, if I have lets say a tuner set on position 5 = plus 175 HP with the BW S300 SX 66 73 80 turbo with a .091 ex hsg with stock injectors will I overspeed the turbo? Should I install a 1.00 A/R turbine housing on now or wait until I install bigger injectors? Sorry for the 100 questions.

95 RAM 3500 4X4 12 VALVE, BUILT TRANS, 271 T CASE, GEAR VENDORS O/D, ARP HEAD STUDS, 62/65/13 TURBO, INJECTORS. SOLD. BEING REPLACED WITH 09 RAM 3500 4X4 AUTO LARAMIE, SO FAR 2ND GEN TURBO SETUP, PUSHER INTAKE.
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post #4 of 10 (permalink) Old 04-03-2019, 06:17 PM
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Quote:
Originally Posted by spdgofast View Post
Yea, I know my next purchase needs to be a good tune but since I'm so green in the EFI tuning area I'm not sure which one to go with. I know I would like the 5 position switch, but which tune? Motor Ops, GDP, PPEI, Anarchy? My other question, gage pod on A pillar or all of the stacked daisy chain DLC connectors taking up real estate under the dash for a Edge CTS? Next question, if I have lets say a tuner set on position 5 = plus 175 HP with the BW S300 SX 66 73 80 turbo with a .091 ex hsg with stock injectors will I overspeed the turbo? Should I install a 1.00 A/R turbine housing on now or wait until I install bigger injectors? Sorry for the 100 questions.
Contact Anarchy fill them in with what you have weather a T4 or T3 manifold etc, waste gate etc. With seeing you are discussing 175 hp tunes. Weather you have an Auto or Manual, you are going to have to deal with that also. Yes you can certainly spin that turbo on stock fuel.

2011,4wd LB/CC 2500 H&S Mini MCC by Tomeygun, BD protect 68rfe VB seperator plate enhanced stall triple disk TC, Super B 64.5/80/.91 3rd gen mani & inline EB, Arp 425s, Fass Titanium 95. Spare Mini in my closet.
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post #5 of 10 (permalink) Old 04-04-2019, 06:43 PM Thread Starter
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Quote:
Originally Posted by N of 60 View Post
IAT and MAF sensors are located at your intake air filter. At your intake horn is your MAP sensor.

You should have no CELs etc if your truck was tuned properly.
So start shopping for that.
Enjoy your new torque monster when you make it road worthy.
A deleted properly tuned 6.7 will dwarf a 5.9 when towing.
So what is the probe that looks like a EGT probe in the OEM intake horn?

95 RAM 3500 4X4 12 VALVE, BUILT TRANS, 271 T CASE, GEAR VENDORS O/D, ARP HEAD STUDS, 62/65/13 TURBO, INJECTORS. SOLD. BEING REPLACED WITH 09 RAM 3500 4X4 AUTO LARAMIE, SO FAR 2ND GEN TURBO SETUP, PUSHER INTAKE.
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post #6 of 10 (permalink) Old 04-04-2019, 07:49 PM
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Originally Posted by spdgofast View Post
So what is the probe that looks like a EGT probe in the OEM intake horn?
Your MAP. There is no other factory sensor there other than that.

2011,4wd LB/CC 2500 H&S Mini MCC by Tomeygun, BD protect 68rfe VB seperator plate enhanced stall triple disk TC, Super B 64.5/80/.91 3rd gen mani & inline EB, Arp 425s, Fass Titanium 95. Spare Mini in my closet.
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post #7 of 10 (permalink) Old 04-06-2019, 05:32 PM Thread Starter
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So what is this probe sensor for that is in my OEM intake? Does it just sense the exhaust gas going into the intake when the EGR is sending exhaust into the intake? If so then I don't think I need to retain it, if it reads intake air temp and adjusts fuel input according to IAT then I would think I need to keep it. Someone out there has to know the answer to this.
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95 RAM 3500 4X4 12 VALVE, BUILT TRANS, 271 T CASE, GEAR VENDORS O/D, ARP HEAD STUDS, 62/65/13 TURBO, INJECTORS. SOLD. BEING REPLACED WITH 09 RAM 3500 4X4 AUTO LARAMIE, SO FAR 2ND GEN TURBO SETUP, PUSHER INTAKE.
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post #8 of 10 (permalink) Old 04-07-2019, 04:20 PM
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It's a egr temp sensor. No need for it with proper tuning.

-2008 6.7l QCLB 4x4,g56,J-67(23ME),valair DD,64.5/72/14,2nd gen mani,arp 425's,boost and pyro... -1993 W250 CCLB...
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post #9 of 10 (permalink) Old 04-07-2019, 06:42 PM Thread Starter
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Thanks, that's what I thought.

95 RAM 3500 4X4 12 VALVE, BUILT TRANS, 271 T CASE, GEAR VENDORS O/D, ARP HEAD STUDS, 62/65/13 TURBO, INJECTORS. SOLD. BEING REPLACED WITH 09 RAM 3500 4X4 AUTO LARAMIE, SO FAR 2ND GEN TURBO SETUP, PUSHER INTAKE.
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post #10 of 10 (permalink) Old 05-01-2019, 06:03 PM Thread Starter
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Well I finally got the parts back from the ceramic coater and got it back together and running, see photos. FYI while I had the turbo off I replaced the entire AC system except the evaporator, replaced the H20 pump and belt and hoses, adjusted the valve lash, installed a 5.9 thermostat housing, and the pusher intake and a 2008 OEM intercooler and all new coolant and rebuilt OEM battery cables with military style battery terminals. So it still runs good (actually better) but no limp mode, as I mentioned previously it must have some kind of tune in it but it has like 25 codes on the scanner. I have a question maybe someone can help me with. The up and down shift button on the shift lever works like crap. It seems to work properly on the upshift but the down shift I have to push the down button anywhere from 4 to 10 times to downshift on each gear I had a mechanic put a Snap On scanner on it and tried to see if I could communicate directly to the up and down shift switch to try and diagnose the the problem but he was unable to see when I was pushing the up and down shift button on the shift lever. A new shift lever from Dodge will cost me 85.00 bucks, does anyone have any input on troubleshooting this problem? Obviously as previously stated I need to purchase a new tune, still not sure which one. I have some other mechanical and cosmetic stuff to address before I have to install the tune so I have time to do some homework on which tune to go with. Any input is appreciated since this is my first 6.7 EFI live truck.
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95 RAM 3500 4X4 12 VALVE, BUILT TRANS, 271 T CASE, GEAR VENDORS O/D, ARP HEAD STUDS, 62/65/13 TURBO, INJECTORS. SOLD. BEING REPLACED WITH 09 RAM 3500 4X4 AUTO LARAMIE, SO FAR 2ND GEN TURBO SETUP, PUSHER INTAKE.
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