I have a 1997 Plymouth Breeze with the 2.0 four cylinder engine. The light came on over the weekend and I took the car straight to Auto Zone for a scan of the OBD2 system. The only code that registered was P1494, I called the chysler dealership and they said it was a leak in the evap system. Most likely cause was a loose or missing gas cap. I checked for this, and even went to the expense of buying a new one. After the new cap was installed, I had the code erased. I reset my trip meter and drove about 90 miles and the light came back on. I‘ve had a mechanic check the lines and hoses running from the fuel tank to the charcoal canister and then to the engine. All were tight and in good shape. I was also told by the dealership that the leak detection pump might be bad. This is a small vacume pump that keeps a constant vacume to the evap system. My Haynes manual shows this pump, but my mechanic says there isn‘t one on my car. I‘m now being told the problem is my O2 sensors??????
it could be your O2 Sensor maybe. The only way to find out is to replace it have the code erased and see if it comes back on. It could also be the actual evap system sensor it self that triggers that check engine light is malfunctioning. See if you can find the leak detection pump your self. If you can try replacing that as well by your self if not show your mechanic this pump. There is no way to find out what the actual problem is until it's fixed you are just going to have to do one thing at a time to figure it out.
the wonderful answer will come from the emission administration gadget, which activates the verify engine easy. examining the code from which will slender it down lots. automobile Zone has a software to very own loan out procedures (in essence, you purchase the gadget and that they refund your funds once you convey it back) and you're in a position to borrow an OBDII scanner there. they is additionally able to envision the code that set the easy the final time in case you will get the minivan to them. EDIT -- oops. I neglected the 1992 classic, meaning you haven't any longer have been given OBDII. There are code readers like the Equus EQU3165 to envision the codes, yet they're going to probable purely be accessible on the internet (see source). be conscious that the gadget is purely a series of training, yet i haven't got here across the educational on the internet everywhere. a short rundown on what it would desire to be and what it would desire to no longer be (assuming the easy is easily in regards to the concern): might desire to be the crank perspective sensor or mass air pass sensor, and a few issues I even have probable ignored. What it may't be - undesirable battery or battery connection (the radio continues to be on on a similar time as the engine shuts off), undesirable ignition areas, gas pump, injectors, ignition change. areas that don't set the verify engine easy while they fail thoroughly, even however they might set the easy in the event that they make the engine run badly.
generally when the check engine light comes on it's usually an O2 sensor needing replaced. however it could be something else. check in your haynes manual on how to short the diagnostic code and to read the code it gives.some cars are actually made to have the check engine light come on at a certain mileage to have the emissions system tested. and if it is an O2 sensor dont worry about it go to auto zone pick one up it's probably about $20 and replace it. it screws into your exhaust pipe towards the front of your engine you can't miss it,it'll be the only thing sticking out of your pipe with a wire hooked to it and should only take about 5-10 minutes to replace.
