LML oem egt sensor relocation. - Chevy and GMC Duramax Diesel Forum
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post #1 of 30 (permalink) Old 04-04-2018, 09:08 AM Thread Starter
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LML oem egt sensor relocation.

Well after hours of searching the old internet and asking on different forums here and there i finally found some guys that have figured this out. There is two solutions to this the first one involves more work but i will share both.

The first way is to buy a 1/4 npt male to 3/8 npt female fitting. Drilled it out with a 9/32 bit. Then replaced the factory fitting with a 3/8 to 1/4.
To replace the factory fitting around the sensor remove the grey clamp that goes around the wires on the bottom side of the plug using an o-ring pic or a small screw driver.



Next remove the purple clip on the inside by gently prying up on it.



Then gentle pry back on the wire locks to remove the wires.



Slide the old fitting off the wires and install new one.



Put the connector back together. Drill and tap your manifold for the 1/4 npt fitting and then install the fitting. Then install the sensor and plug it into the factory harness and your done.
With this method they were saying to make sure you have sensor in tight you need to get a 1/4 diamiter spacer and install it on the sensor before installing it in the fitting on the manifold.





The seconded way is a lot easier. Buy a 14mm by 1.5 female to a 1/4 npt male fitting.



Drill and tap your exhaust manifold to 1/4 pipe. Screw the fitting in and then simply install your sensor into the fitting and done. if you want to do it this way this is the fitting that is needed. https://www.hydradynellc.com/product...onversion-fhg8

I have to give credit where it is due:

Derek Allen on LML Duramax Brethren Facebook page is where I found the first method and the finish photos. He posted the how to back in April of 2017.

Maynard Shope from EZ Lynk Forum on Facebook gave me the info and web site for the seconded method.


I just wanted to share here because i have seen people asking about it while i was trying to find a way to do it.

13 2500hd
PPEI EZ Lynk
h&s mini maxx for gauges
s&b cai
EGR/DPF delete
Turbo back exhaust
Fass Fuel system
Fuel filter delete
PVC reroute and resonator delete

Last edited by Minedieseltech; 04-04-2018 at 09:13 AM.
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post #2 of 30 (permalink) Old 04-05-2018, 05:30 AM
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2008 Silverado 2500HD CCSB LTZ Diesel
FASS 95 Lift Pump (with Baldwin filters), Edge Insight CTS Monitor on a Windshield Mount, Nicktane Fuel Filter Adapter w/ CAT 306-9199 UHE tertiary fuel filter, Bilstein 5100 Stock Height, MBRP Downpipe back 4" exhaust with muffler and FTE 30" resonator/muffler, Sinister EGR Delete, Tuned but wont say who did it, Bushwacker Bed Rail Caps, AMP Research Bedstep, Fumoto oil drain valve, Dorman PS Oil cooler, Pioneer AVIC 7200NEX GPS/Stereo, Air Lift LoadLifter 5000 Air Bags.
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post #3 of 30 (permalink) Old 07-18-2019, 09:33 AM
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Did anybody do either of these methods? I'm considering jumping on method #2.
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post #4 of 30 (permalink) Old 07-18-2019, 09:48 AM Thread Starter
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Quote:
Originally Posted by jrry261 View Post
Did anybody do either of these methods? I'm considering jumping on method #2.

I did method 2

13 2500hd
PPEI EZ Lynk
h&s mini maxx for gauges
s&b cai
EGR/DPF delete
Turbo back exhaust
Fass Fuel system
Fuel filter delete
PVC reroute and resonator delete
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post #5 of 30 (permalink) Old 07-18-2019, 10:22 AM
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Did you get enough access to the manifold just by removing the inner fender and did you need to extend the factory harness to reach the plug?
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post #6 of 30 (permalink) Old 07-18-2019, 11:09 AM Thread Starter
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yes I got enough access by removing the inner fender and the factory harness reached the sensor

13 2500hd
PPEI EZ Lynk
h&s mini maxx for gauges
s&b cai
EGR/DPF delete
Turbo back exhaust
Fass Fuel system
Fuel filter delete
PVC reroute and resonator delete
Minedieseltech is offline  
post #7 of 30 (permalink) Old 07-18-2019, 11:16 AM
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Last question lol, did you buy the fitting from that site or find it local. Maybe a truck parts store? $30 seems kinda nuts for a steel fitting.
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post #8 of 30 (permalink) Old 07-18-2019, 12:29 PM Thread Starter
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Quote:
Originally Posted by jrry261 View Post
Last question lol, did you buy the fitting from that site or find it local. Maybe a truck parts store? $30 seems kinda nuts for a steel fitting.
Your all good I checked every hyd store in town and found nothing ended up just buying it from that online store

13 2500hd
PPEI EZ Lynk
h&s mini maxx for gauges
s&b cai
EGR/DPF delete
Turbo back exhaust
Fass Fuel system
Fuel filter delete
PVC reroute and resonator delete
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post #9 of 30 (permalink) Old 08-03-2019, 11:08 AM
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Well finally put it in. Reads 1713 still. What plug did you use?

2014 2500 LML SRW
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post #10 of 30 (permalink) Old 08-03-2019, 11:44 AM
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What thread sealant are you using when screwing the adapter into the manifold?

2008 Silverado 2500HD CCSB LTZ Diesel
FASS 95 Lift Pump (with Baldwin filters), Edge Insight CTS Monitor on a Windshield Mount, Nicktane Fuel Filter Adapter w/ CAT 306-9199 UHE tertiary fuel filter, Bilstein 5100 Stock Height, MBRP Downpipe back 4" exhaust with muffler and FTE 30" resonator/muffler, Sinister EGR Delete, Tuned but wont say who did it, Bushwacker Bed Rail Caps, AMP Research Bedstep, Fumoto oil drain valve, Dorman PS Oil cooler, Pioneer AVIC 7200NEX GPS/Stereo, Air Lift LoadLifter 5000 Air Bags.
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