Cel p0546
08-03-2010, 12:17 PM
#1
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Join Date: Jul 2010
Location: East Coast
Posts: 9
Car Info: 2005 Subaru WRX
Cel p0546
Hey all I just bought a 2005 WRX about a month ago and noticed the CEL came on a few days after buying it. Concerned, I took it home and scanned it to find just one code - P0546, the infamous EGT sensor code.
Now, the guy who had the car before me had an exhaust system on the car, and I assume he had a catless up-pipe at one point, which probably burned out the EGT sensor. Also, I have noticed my peak boost only goes to about .08 MPa which is about 1-2 psi lower than it should be, and I have read about this same situation here : http://forums.nasioc.com/forums/arch.../t-269651.html
Does any one know the procedure for probing the EGT sensor with an ohmmeter to test if it is burned out? Or should I just go ahead and do the 2.2K resistor fix? ORRR should I go buy a new sensor and put it in (assuming I determine the old one to be bad).
Any advice is much appreciated
thanks
Now, the guy who had the car before me had an exhaust system on the car, and I assume he had a catless up-pipe at one point, which probably burned out the EGT sensor. Also, I have noticed my peak boost only goes to about .08 MPa which is about 1-2 psi lower than it should be, and I have read about this same situation here : http://forums.nasioc.com/forums/arch.../t-269651.html
Does any one know the procedure for probing the EGT sensor with an ohmmeter to test if it is burned out? Or should I just go ahead and do the 2.2K resistor fix? ORRR should I go buy a new sensor and put it in (assuming I determine the old one to be bad).
Any advice is much appreciated
thanks
08-04-2010, 12:18 PM
#2
Does the car have an aftermarket UP? If so, you should just install the resistor or get a tune that will clear that code. If its the stock UP, I would highly recommend replacing it as the EGT sensor and UP cat can fail and take out the turbo eventually.
-- Ed
-- Ed
08-05-2010, 08:55 AM
#3
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Join Date: Jul 2010
Location: East Coast
Posts: 9
Car Info: 2005 Subaru WRX
I'm pretty sure he put the stock up-pipe and everything back on, although I am waiting to here from the guy to confirm 100%. The EGT probe is definitely in there, and i put the resistor in for now. So you're saying if it is the stock up-pipe that I should replace the EGT sensor? Or replace the up-pipe?
thanks for the help
thanks for the help
08-05-2010, 11:27 AM
#4
I'm pretty sure he put the stock up-pipe and everything back on, although I am waiting to here from the guy to confirm 100%. The EGT probe is definitely in there, and i put the resistor in for now. So you're saying if it is the stock up-pipe that I should replace the EGT sensor? Or replace the up-pipe?
thanks for the help
thanks for the help
-- Ed
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