Question about 2001 Chrysler Concorde
P1494: Leak detection pump pressure switch or mechanical fault
not sure what system that pertains to but this is the definition i get from my reader software.
Posted on Nov 04, 2012
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Posted on Jan 02, 2017
P1494 is the code for the leak detection pump and or system, which is part of the early evaporative emission system.
It’s there to allow the computer to run an integrity test of the fuel tank, lines and carbon canister’s ability to contain all of the fumes coming from the tank and all line associated with the system.
The code could be set for a number of reasons such as a faulty gas cap, cracked vacuum lines, solenoids & vent valves stuck to the pump itself.
In some cases, it can also be set if you refueled the car with the engine running, as when the fuel cap is removed with the engine running, the computer can read that as an evaporative emission leak.
Posted on Jan 31, 2010
P0302-cylinder #2 misfire detected
P0420- catalyst efficiency below threshold bank 1
P0340-No cam signal at PCM.
The Cam sensor most likely needs to be replaced first. Clear the codes after that and drive and see what comes back on.
Posted on May 29, 2009
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