All of the sudden it only reads 200c , any one have this happen?

 

Check the EGT connections, if all good your EGT probe burned out.

 

How long should it last? I have only had it on for 5 months.
Where can I get a new one at?

 

Im guessing.. Zeitronix

 

I would give Zeitronix a call. They stand behind their products and would be very helpful.

 

http://www.zeitronix.com/order/order.htm#EGT

Or just pm TTP . Probably cheaper.

 

It just started working again...I duno

 

Then you need to check the connections.

 

The probes are low mass, high response units. The fastest K thermocouples in the market. The fast reacting probes in turn have to be thin. I would plan on replacing it every 6-12 months, YMMV. Depending on how you use the car and where it is tapped.

 

Good info, thanks TTP!