Since my 2007 Toyota Yaris base version didn't come with a tach, I decided to install an aftermarket one. So after doing some research I decided to go with this Sunpro because it was the size that I wanted (I like small gauges) and it was cheap, so it seemed like I couldn't do anything wrong. Well, it seems that you do get what you pay for...
So I drilled a big hole in the glove compartment above the steering wheel (which is a cool Yaris feature) and installed the tach according to the specs. Tried it out right after install and was happy, everything worked as planned. The next day I noticed that the needle won't come back down to zero if you turn off the key too quickly, it will simply freeze to whatever value it was when the power was cut off. So even when my car was off, the tach was stuck at, say, 500 rpm. In order for it to reset to zero you would have to slowly turn the key and pause in the ACC position, so the needle has time to come all the way down. That was the first disappointment. But after all, not the biggest problem.
The reason I don't like this tach is because after a few days, it stopped working correctly. I start the engine and the needle goes to 1,000 rpm no matter what the actual engine speed is. And it just stays there for a while, anything from 10 to 20 minutes and after that, it starts working normally. Since my commute takes about 25 minutes, that means I can enjoy this feature for only about 5 minutes each way. Some days it seems to start working earlier, but I haven't figured out why. I live in California, so humidity cannot really be a problem.
I will probably try a replacement and if that still has the same problem I will look for a different brand.Get more detail about Sunpro CP7906 Mini Super Tachometer II - Black Dial.
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