Cables are about 60 cm long. This means that when your battery is not in the car, any tests that require the RPM to be held for a period of time cannot be performed on its own. There are $60 OBD readers that can do the same thing, and you can do it while in the car. But it won't print. But that's not entirely true either. The printer works the same as in the video. Be prepared to pull on the paper while printing. Accuracy. If the car was running just before the test, this can indicate a good battery. Check this after the machine has been sitting for a while and you may get a different result. And no, there is not an excessive amount of parasites in the system. save your money I kept them too long to return them. And I bought my OBD scanner after the fact. Have you ever noticed that most reviews are positive? That's because people don't like to admit they made a mistake. There was an error.
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