Just watched a Scotty video resetting PCM. (2007 G6 3.5). It showed using 10w 1ohm resistor between battery cables to drain capacitors in PCM/ECM. I did find a 10w 1.2 ohm resistor. OK to use?
No check engine lite on. When driving normally, RPM s on tach seem to shift up and down on their own.
Just watched a Scotty video resetting PCM. (2007 G6 3.5). It showed using 10w 1ohm resistor between battery cables to drain capacitors in PCM/ECM. I did find a 10w 1.2 ohm resistor. OK to use?
You don't need to buy a resistor. Disconnect the battery.. turn on the headlights, dome lights, hold your brake lights on, etc.. this will drain any the residual power from the vehicle.
old old old question. Always try the search before making a new topic.
https://carkiller.com/scottykilmer/qa/1-ohm-10-watt-resistor/
You could have a faulty gauge though.
When driving normally, RPM s on tach seem to shift up and down on their own.
Why do you need to clear PCM?
he said his tach is wonky
So why reset the PCM can that fix it?
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