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Chrysler Oxygen sensor help


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valleybusman
User

Dec 13, 2011, 10:11 PM

Post #1 of 4 (1543 views)
Chrysler Oxygen sensor help Sign In

I have a 95 Chrysler Concorde with a 3.5 enegine and the car has 164000 miles on her . Well the other day she wouldn't start so I hooked my OTC 4000 tester and it said cam and crank sensor were okay . I used the same tool for the coil and it checked out . So I put my foot to the floor and cranked and after awhile she started up . I took her for a testdrive and the check engine light cam on . Checked for codes and got a 51 saying low voltage . Okay so I figured the sensors are bad . I need to know where they are . I took the car in and replaced the catalytic and while under there I saw something sticking out of the pipes in front of converter. Guy said those were oxygen sensors . Book says exhaust manifold who's right . Sorry if I am long winded here !


Mr.scotty
Enthusiast
Mr.scotty profile image

Dec 13, 2011, 11:07 PM

Post #2 of 4 (1515 views)
Re: Chrysler Oxygen sensor help Sign In

Yes, those things sticking out of the exhaust pipe were more then likely oxygen sensors.
A picture of what your talking about would help also is you feel the need.
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Your only as good as your tools!


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Dec 14, 2011, 4:14 AM

Post #3 of 4 (1506 views)
Re: Chrysler Oxygen sensor help Sign In

That tool you have isn't a magic diagnosis box and doesn't tell you as much as you think it does. That code doesn't necessarily mean a bad sensor. It means you have a lean condition and now you have to determine why the old fashioned way.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Dec 14, 2011, 5:54 AM

Post #4 of 4 (1499 views)
Re: Chrysler Oxygen sensor help Sign In

I do know that OTC 4000 and cartridge had the capability to do ATM tests. Maybe that is how he found the coil was good. You could tell if you had crank pulse by looking at the RPM pid in the data stream while cranking the engine. Not sure about the cam sensor though.





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(This post was edited by Discretesignals on Dec 14, 2011, 6:00 AM)






 
 
 






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