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OBD Tester question


oldjohnt

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So, I have had a CHEAP OBD tester for years that works for what it is, I want to upgrade BUT CAN NOT FIGURE OUT AN ANSWER TO THIS QUESTION..... .

Say I throw a MISFIRE code on my Ford V10, what testers of the thousands out there IF ANY will show on WHICH CYLINDER the misfire occurs????? ????? ?????

Heres one of thousands on E Bay, would it show ON WHICH CYLINDER a misfire happened? If not any recommendations of one that would ??

 

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John T

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If the tester is correctly interpreting the error code then, yes, the tester will tell you which cylinder. The following is from an automotive testing site:

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A P0300 code would indicate a random misfire (probably due to a vacuum leak, open EGR valve, etc.). If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring. A misfire code P0301, for example, would indicate a misfire problem in cylinder #1. Of course, misfires can be caused by a lot of things. It could be a worn or fouled spark plug, a weak coil, a bad plug wire, a dirty or dead fuel injector, or a loss of compression (burned exhaust valve or leaky head gasket). Further diagnosis is always needed to isolate and identify the root cause.

I have a little OBD tester that uses an app on my phone to read it, and because it is on my phone it also uses the internet to look for the codes.

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