Hello!
I've got an issue with the Isspro pyrometer on my truck. Specifically, the gauge intermittently doesn't work, with the needle returning to about the 100° mark (where the needle sits when the exhaust is cold).
All connections at least appear to be okay, and I think the wire itself is okay as well (although I'm not certain; call it wishful thinking? ). Since the gauge suffered a 3 foot fall onto asphalt in the process of installation (and I've been kicking myself ever since), I'm thinking it might be the gauge itself.
Is there a way to measure whether or not the thermocouple's putting out current with a "normal" voltmeter? It'd be nice to verify for sure whether or not current's getting to the gauge when the gauge isn't reading. I assume there isn't a way to troubleshoot the gauge itself without more equipment than I have...
Lastly, are EGT's directly related to boost levels except when the engine's being lugged? I'm taking the truck on a 300 mile trip tomorrow (first long trip since I replaced the head gaskets and added the turbo in July), and am concerned about winding up in a hilly area when the pyro decides it wants to take a break. If I can watch the boost gauge and, say, keep it under 5 psi, I'll feel a lot more comfortable. At least the truck's going to be unloaded on the trip...
Thanks!
I've got an issue with the Isspro pyrometer on my truck. Specifically, the gauge intermittently doesn't work, with the needle returning to about the 100° mark (where the needle sits when the exhaust is cold).
All connections at least appear to be okay, and I think the wire itself is okay as well (although I'm not certain; call it wishful thinking? ). Since the gauge suffered a 3 foot fall onto asphalt in the process of installation (and I've been kicking myself ever since), I'm thinking it might be the gauge itself.
Is there a way to measure whether or not the thermocouple's putting out current with a "normal" voltmeter? It'd be nice to verify for sure whether or not current's getting to the gauge when the gauge isn't reading. I assume there isn't a way to troubleshoot the gauge itself without more equipment than I have...
Lastly, are EGT's directly related to boost levels except when the engine's being lugged? I'm taking the truck on a 300 mile trip tomorrow (first long trip since I replaced the head gaskets and added the turbo in July), and am concerned about winding up in a hilly area when the pyro decides it wants to take a break. If I can watch the boost gauge and, say, keep it under 5 psi, I'll feel a lot more comfortable. At least the truck's going to be unloaded on the trip...
Thanks!