Equus 3100 Innova CanOBD2 Diagnostic Tool

Worked flawlessly the first time I connected it. Was able to immediately find out why my Check Engine light was on. Simple to use and loaded with useful diagnostic information. An invaluable tool well worth the purchase price.

I am not a huge do-it-yourselfer but it always drives me nuts when I have something come up that I know is small and I can't handle it myself.

I recently bought a car that has tire inflation monitoring. I noticed each time it rained, my indicator lights were coming on. I didn't know at the time why or what the problem was. So I went to a mechanic, paid $52.00 and had them look at it. It turned out one tire was 7lbs lower than the others. Once I started driving , the air would expand and it would stabilize but it just so happened that the mornings when it rained, it was colder. So the colder it got the more the problem was exacerbatedl. It was humiliating to have the mechanic tell me it was the tire monitoring system b/c I didn't know that the feature even existed.

When I saw the reader they used, I decided to buy one. They are pretty cheap after all and I figured as high tech as the family's cars are, sensor lights were certain to come on at some point in the future (and the trend isn't going to change).

I got the 3100 and decided to see what I could learn. It was very easy to use and since they have a pretty good schematic about the port you plug into- i found it in about 20 seconds. (I did have to physically look under my dash b/c of where it's located on my car, I couldn't just feel around, but that's the car's issue not the reader). Anyway, like I said b/c of the diagrams, I knew exactly what to look for and it took just a few seconds.

After that, I ran it even though I had no warnings and all was just as I expected. On a scale of 1-10, the whole thing was a 1. So I offered to run it for two co-workers that had lights on. In each case, I was able to immediately find the prong and hook it up and get readings in under 30 seconds.

I each case, I was able to use the manual and figure out what the problem was. ANother reviewer mentioned that you need to be careful not to misplace the manual - I totally agree. As easy as it is to use, there are tons of features and without the manual, you're going to forget most of them unless you use the thing regularly. Since I'm a layman, I won't be using it daily and although I've memorized the basics, anything more sophisticated probably reqquires the manual or having previously done it.

Additionally, there's a software dc included and a USB cable to use in conjunction with a home computer. It's probably best to install this on a laptop so you can take it with you on the go if you need to..

All in all I think it's a great product, and for the money the features you get are excellent. I doubt you'll be disappointed.

I purchased this for my husband and within the first 2 times he used it the item paid for itself! My Dad also used it and was happy he did because he would have bought the wrong part because he thought the problem was something else. It is a nice diagnostic tool and worth the money.

Purchased this to check code that was suspect instead of going to dealer. Saved myself the cost of dealer (several hundred dollars) which paid for this unit many times over. Only issue is it erases code from unit as well as vehicle.

Great little item that basically paid for itself in the first use. Service engine light was on. Plugged the 3100 OBD2 unit in, got an emissions error code. Printed the report. Looked up the code and found a listing of potential problems. The most common listed was a faulty gas cap. Replaceed the gas cap. The engine light went off. Figured I saved $65-80 for the diagnostics plus some for a mechanic to tell me it was something else.