Originally Posted by
LostBenji
OK, I can answer this. I too have had issues with EGT gauges. The first unit I used (Chinese - eBay Job) was shocker for under-reading (nearly 100° under actual). The second & third were the SAAS gauges, OMG, whats pieces of shit.
Mine were bought from loca Autobahn who also told me the same line, no issues with them. First unit would randomly go all over the place and scared the shit out of me when it went up to 900° while on the highway. Gauge was swapped out after excuse like above was given. New one worked for a week then fark me, again, rock-show.
After a well place thump (yeah, I smacked it), no issues again till the other day when I washed the car (and under the bonnet), the thermocouple and lead got wet.... Took a solid day to dry out and work again. The SAAS stuff is cheap-n-nasty. The next gauges i use will be likely something like Autometer.