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the 453 code is for the fuel tank pressure sensor circuit. it could be a connection issue or a sensor issue. it will not effect the running of the car, it is an evap system issue.
one suggestion, do not clear codes as it does nothing. there is a fault in the other systems and everytime you clear codes you erase vital information in freeze frame data that is stored that your tech can view to see what readings were at the time the code was set. otherwise it lengthens the process of finding the failure
the diagnostic system sounds like it is ok. it sets faults when it see sensors out of parameters. thats why you need to not clear the codes. the pcm takes a snap shot of the fault and saves the sensors readings of the system involved. erasing the codes erases that info. some codes set after 2 or 3 trip times, depending on the code. the code you have now, the 453 is a 3 trip re set. after the pcm sees the same sensor result that is wrong 3 times, it sets the code.
anyway. the grounds are at the battery.
all these faults???? were repairs made on the other codes????
the 453 is a feul tank pressure sensor issue as I stated.
yes, it is possible for any car to have codes and issues. thats the job of the pcm to monitor all these systems
what makes you think they were looking for a wiring issue???
no, I would not think the pcm is the issue. it is just telling you the failures.
the wiring harness needs to be secured as you know. the connection needs to be checked at the sensor. do you have a full blown scan tool to monitor the voltage at the sensor???
not sure??? about what???
will it read the voltage of the fuel tank pressure?? it may be marked FTP
if those codes are set there is a problem. it does not mean timing chain. that is way down the list of possibilities.
what was done before when you said these codes were fixed???
the 453 will be back after it fails its internal checks again
ok, the 8,17 are related to the primary timing chain. the crank/cam correlation is not correct and has nothing to do with the tensioners or phasers. I will post the info for you to review.
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