Computerized gauges

[scottydogtruck]

(12-02-2016 )Rawze Wrote:  

(12-02-2016 )Shipit Wrote:  Wow thank you much! I purchased a pyrogauge from Glowshift was going to mount the thermocouple externally as you suggested in a video. I waz wondering if you or someone has a estimate of the temperature spread between a internal one at operating temps or more important what temp would be considered excessive with that set up?. I've been in the truck 2 weeks or so now and I see the hot EGT light on 3 times and maybe around 1000 mile intervals aways during deceleration and twice just after using Jake brake. Engine seems a bit rough for a short time while this is going on. My guess the truck is doing a regen ?? There is no exhaust filter light coming on though.
At all time the turbo scheduling at idle all over the place. Usually don't hear it for 10 seconds after starting then it kinda wonders around. Is that normal. Boost gauge going in this weekend. I checked the cold side impeller seems nice free and no slop. Might be normal ops but I am nervous about it until I learn what I've got. Thanks

No, it is not normal for the turbo to "wonder" like that. There is a sensor reading badly,.. (most likely yher IMAP). Do t athourough EGR tune-up if it has not already been done. It will help a TON!.

http://rawze.com/forums/showthread.php?t...87#pid1087

As well, exhaust restrictions will cause it to hunt like that too.


I have seen many trucks with BOTH pyro on the outside of manifold, and a second sensor in the pipe (placed into the exhaust stream) at the same time. It is only about 50 degrees difference or so most of the time in a hard pull. On the outside though,.. you can monitor the overall heat buildup of the manifold and turbo. That is more important than what the EGT is at any given moment. It is this buildup of overall heat that the turbo does not like.

Pyro mounted on the outside of manifold, you should not let it get above 900 degrees or so in a long pull. That is all the turbo can take long term.

Was wondering that same thing....just installed both my pyro and boost gauges.....