Pyro Gauge Install Question
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Junior User
Joined: Oct 2002
Posts: 63
Likes: 0
Pyro Gauge Install Question
Hi all,
I placed the sensor in the exhaust manifold and was getting ready to run the wires through the firewall and I noticed that my kit came with a 6' High Temp Leadwire. Is this wire for use in the event the wires from the sensor can't reach the amplifier wires ?? Is this wire a must use ??
I have round electrical connectors with nylon locknuts on both ends of the amplifier and the sensor in the exhaust manifold.
Can I snip a set of those wires and crimp the appropriate connectors to make this work ??
Thanks,
I placed the sensor in the exhaust manifold and was getting ready to run the wires through the firewall and I noticed that my kit came with a 6' High Temp Leadwire. Is this wire for use in the event the wires from the sensor can't reach the amplifier wires ?? Is this wire a must use ??
I have round electrical connectors with nylon locknuts on both ends of the amplifier and the sensor in the exhaust manifold.
Can I snip a set of those wires and crimp the appropriate connectors to make this work ??
Thanks,
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
AKESPY,
You cannot alter the length of these wires in anyway or the gauge will not read properly. If you need a shorter wire you must buy it from the manufacture of your gauge (the same holds true if you need a longer wire).
You also cannot solder on these wire or it will ruin the sensor calibration.
Hope this helps
You cannot alter the length of these wires in anyway or the gauge will not read properly. If you need a shorter wire you must buy it from the manufacture of your gauge (the same holds true if you need a longer wire).
You also cannot solder on these wire or it will ruin the sensor calibration.
Hope this helps
Freshman User
Joined: Apr 2004
Posts: 41
Likes: 0
Originally Posted by blackhat620
AKESPY,
You cannot alter the length of these wires in anyway or the gauge will not read properly. If you need a shorter wire you must buy it from the manufacture of your gauge (the same holds true if you need a longer wire).
You also cannot solder on these wire or it will ruin the sensor calibration.
Hope this helps
You cannot alter the length of these wires in anyway or the gauge will not read properly. If you need a shorter wire you must buy it from the manufacture of your gauge (the same holds true if you need a longer wire).
You also cannot solder on these wire or it will ruin the sensor calibration.
Hope this helps
More Turbo
Joined: Feb 2004
Posts: 688
Likes: 3
From: Fairbanks, AK
I haven't ordered my guages yet, but I see Motorhaven lists 2 different lengths of thermocouple lead wires. One is 6' and the other is 10'. What length do you need to order to install the pyrometer pre-turbo to a pillar guage? Sounds like 6' is plenty.
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Posting Guru
Joined: May 2004
Posts: 1,414
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From: stoneboro, pa
Originally Posted by Twin Tritons
I haven't ordered my guages yet, but I see Motorhaven lists 2 different lengths of thermocouple lead wires. One is 6' and the other is 10'. What length do you need to order to install the pyrometer pre-turbo to a pillar guage? Sounds like 6' is plenty.
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Thread Starter
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Junior User
Joined: Oct 2002
Posts: 63
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TwinTritons,
The 6' length for the lead wire for the thermocouple is plenty. I had to coil quite a bit of the extra wire down around the chassis.
On a separate note...I started up the engine to test the pyro gauge and it didnt' move off of 100 deg F. I noticed the needle jumped a little when I cranked the engine then returned to its rest pretty abruptly. It got too late to troubleshoot, I'll have to check it out tomorrow.
I'm pretty positive that I wired up everything correctly. The only concern that I would have is the short piece of wire coming from the thermocouple got twisted a bit when I was coiling up the extra wire but not to the point where It was kinked.
Anyone have any suggestions as to what to try when I troubleshoot ???
Thanks,
The 6' length for the lead wire for the thermocouple is plenty. I had to coil quite a bit of the extra wire down around the chassis.
On a separate note...I started up the engine to test the pyro gauge and it didnt' move off of 100 deg F. I noticed the needle jumped a little when I cranked the engine then returned to its rest pretty abruptly. It got too late to troubleshoot, I'll have to check it out tomorrow.
I'm pretty positive that I wired up everything correctly. The only concern that I would have is the short piece of wire coming from the thermocouple got twisted a bit when I was coiling up the extra wire but not to the point where It was kinked.
Anyone have any suggestions as to what to try when I troubleshoot ???
Thanks,
Freshman User
Joined: Apr 2004
Posts: 41
Likes: 0
you can use an ohm meter to check the resistance from the probe behind the gauge , record it then crank the truck and wait like 2 min, then read what is show, their whould be a differec in ohms from each other , i cant give you the exact numbers as i never tested mine , but that will let you know it it is a bad thermocuple.
Also as fredsf250td said check for short. you can do this with your ohm meter if you check and you are read very low like less then 2 ohms that would not be good.
hope this helps and if anyone can add or clarify please do as I am not an expert on trucks these are just suggestions to help out
Also as fredsf250td said check for short. you can do this with your ohm meter if you check and you are read very low like less then 2 ohms that would not be good.
hope this helps and if anyone can add or clarify please do as I am not an expert on trucks these are just suggestions to help out