Question about 1999 Dodge Caravan
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Posted on Jan 02, 2017
Based on what the tech manuals say I would change the DPFE sensor for the EGR Valve, careful not to tear the special silicone rubber hoses that go to it from the exhaust, as a Ford dealer tech I saw these codes allot, and the DPFE sensor was almost always the issue or the hoses going to it.
Posted on Oct 16, 2008
I had the same problem on my Chrysler Sebring but it was with the headlights staying on. The lights are on a relay called a "delay relay" of which will allow the lights to stay on for a minute after shutting off the ignition (after using your lights let's say when its dark). This of course helps provide light for you to see to walk to your house, keys, etc. But sometimes these relays stick on and just need to be replaced.
Posted on Dec 28, 2008
SOURCE: Engine light on in 2000
it is your EGR Valve.
EGR stands for Exhaust Gas Recirculation. It is part of the vehicle emmissions system, and is used to reduce combustion temperature and pressure to control Oxides of Nitrogen. There are generally three parts to the EGR system: the EGR valve
, an actuator solenoid, and a differential pressure sensor EGR (DPFE). These things work together to deliver the correct amount of recirculation based on engine temperature, load, etc. The P0401 code means that OBD detected an insufficient amount of EGR.
Causes A code P0401 most likely means one or more of the following has happened:
drivers side of the engine bay, just under the intake manifold plenum where the throttle body bolts up! If you take the air snokel off you'll see it better! It has a remote mountted vaccum solenoid with a 2 wire connector going to it that you should be able to see near the throttle body.
Follow the hose from the solenoid down to the valve and you'll find it!
hopes this helps-------lebones
Posted on Jan 06, 2009
P0442 refers to a small leak in the Evaporative Emissions System(It purges fuel tank vapors into the engine to be burned rather than vented into the atmosphere). From time to time the PCM pressurizes this system to check its integrity. If it senses a small leak, then it sets this code.
Is your gas cap on tight? Recheck it.
The evaporative emission system is probed by applying vacuum to the EVAP system and monitoring for a vacuum decay.
The engine control module (ECM) monitors the vacuum level through the fuel tank pressure sensor signal.
The EVAP canister purge valve and the EVAP vent solenoid are turned on at the nick of time, allowing the engine to **** up a small vacuum on the entire EVAP system.
After the requisite vacuum level has been obtained, the EVAP canister purge valve is switched OFF, locking the system entirely.
If sufficient vacuum level cannot be derived, a large leak is indicated. This can be caused by the following conditions
The P1684 code simply means that the battery has been disconneted within the last 50 starts.
Your Car has a Lot of Problems, but some not at all expensive to fix
Posted on Apr 24, 2009
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