in my '97 defender, i can scan codes as long as the ignition is on but the engine is not running.....however, ive been told that fopr ny state inspection, they require the engine to be running....anyone have info on this?? thx....
I think there are different scanners that can get real time info from the OBD2 port, But the cheap scanners (like mine) only read trouble codes and can reset them
is that nec true? i thought the whole idea of the obd2 was that the sensors/monitors do all the worl while the engine is running and record it, possibly making it unneccessary to have it running for the inspection....the inspection could just be the retrieving of the obd2 info.....but like i said im not sure....
more important, any thoughts on why my scanner can read but only when not running? if i try to scan while running, i get an error.....thx...
ok the engine does have to be running...so any thoughts on why i can scan in the "accessory" mode, but not in the "on" mode or while the engine is running??
Wait a minute...what sort of error? I sometimes get spurious readings (P0000) initially while running but these are pending codes. Yes, my scanner reads pending codes. These P0000 codes never materialize into real codes.
i have the equus (inova) scanner also....according to british car svcs the only scanners that will work properly when the car is running are rovercom, orthlogic, and t4 - spellings might not be correct.....
Ha! They're wrong. I have an Equus and I can read while running. In fact, when I first got it I would leave it on and drive around to notice its function. It beeps every 15 seconds as it reads continually.
i hear u - thats what i did - i get the same result in 5 different scanners! (but none were one of the above 3 i mentioned)
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