How to OBD test your car - Part 4 

Thanks for the comment and support David. Agree they are super useful on the older modern classics, keeps things in check haha 🤞👍

Thanks for the comment Joe 👍

Hi Hbr thanks for the comment and support. As long as the engine light goes out when the car runs all is good 👍. You could try cleaning the maf but you may find that you have an issue with your starter motor, it may have a worn point which causes the intimitant starting issue. Hope that helps 🤞

Hi CB, thanks for the comment and suppport. Yes any car with an OBD2 port will work with this unit 👍

Hi Janet, thanks for the comment and support. It sounds like you have a bad battery. The unit can plug in while the ignition of the car is on and when the car is also running. It should not drain you battery as it would not need that amount of power. Let me know how you get on 👍

I can only imagine that your car has either a faulty connection somewhere which goes live when OBD2 is connected, or you got a pretty duff battery. OBD2 units work on a minute amount of DC power, measured in milliamps. What make and model of car do you have?

@@Witty924 I got a new battery 👍

@@davidmwood560 I have a 2006 Toyota Camry XLE. I replaced my battery, but the same EVAP code comes up. It's not the gas cap, either.

@@dammyof5531: you need to identify the nature of the code that's coming up. This could be anything from a dirty Massed Air-Flow Sensor, (remove, spray thoroughly with a DEDICATED. cleaner, then leave to dry out for 30 minutes before reassembling), a dirty throttle-body intake, (clean in the same way as the MAFSensor ~ at the same time), to a pinhole in a rubber vacuum pipe. I'm still drawn to the fuel-cap though. I had the same problem; bought a new fuel cap and still had the problem! My mechanic resolved it by thoroughly cleaning the neck of the fuel filler and fuel-cap seal with thinners, then applying a thin film of engine oil (virtually any oil will do) to both surfaces with a cloth and replacing firmly. Hey, Presto! Problem solved! I've been around cars all my life; I raced at many levels for 60 years! I've gathered a small collection of carefully selected classic cars over 54 years. I've rebuilt them, restored them, painted them, re-upholstered them and shown them. It took one modern fault with a si.ple solution to stump me. I guess it just g o es to show, I'm still learning after all this time. If the obvious solutions I've mentioned don't fix the problem, you probably need to have a trusted mechanic look it over. I hope I've helped a bit

Hi Joesph, you can find these types from as little as 20 pounds on ebay, the more you spend the better the functionality of the obd2 device. Hope that helps 👍

Not sure this unit is able to check that detail for you Cristian. It will read a code if its compatible with your car and can erase codes but it don't tell you why the problem exists. Might be worth looking at a more intelligent obd2 unit for your car. 👍