Had a similar problem with older car. turned out it was my gas tank was not letting in air to replace the gas i was using as i drove. if you loosen gas cap and problem is solved, search for blocked fuel return line to the tank.
repair/replace gas tank if it is seriously 'caved in'.
SOURCE: dead cylinders 2003 sebring
it sounds like you may have the wires on the wrong coil. It should be #1 on the #4 coil, and the #3 wire on the #2 coil. you probably have them backwards so 1 and 3 are firing on the exhaust stroke.
the firing order is 1-3-4-2.
they should be hooked like this.
SOURCE: My 2000 Sebring Convertible with 2.5L V6 e sudden
If it happened after you got it from the dealer and you spent that enourmous amount of money for replacing two items which alone would cost around around $300, well... let them fix it free of charge. now unless warranty for the labor and parts has expired, then i suggest doing the wiggle test on the electrical wires on your car while engine on.(be very careful with moving parts and loose clothing) wiggle wires that connect to any electrical part in the car see if it shuts off on you. the only other thing i can think of is replacing your fuel filter and checking your fuel pump..
SOURCE: 2000 t/c 3.8 turns over no spark new cam,crank
If the dealer did the work then they most likley checked the ASD relay which powers the fuel and ign. Also you should make sure you are getting a consistant signal from the crank sensor. If not the magnet may of broke inside the cover. Also you should have a ign fuse or PCM fuse. Also you may of lost your computer ground. Add a new one to verify. Make sure you have 12v on the hot pcm wire.
SOURCE: Coil has no spark on 1 & 4 replaced coil,
Hello! Is the Check Engine Light (CEL) on, indicating a stored fault code? Since you have installed a new Coil I would suggest having a look at the wiring to the coil's connector...1&4 are controlled by the Powertrain Control Module (PCM) on the Dark Blue/Dark Green wire...Visually inspect the connector, pins and wiring at the Coil end...If you have a multimeter and a wee bit of knowledge of its use the wire can be tested with a voltmeter...With engine running, measure the voltage on the following wire colors of the coil connector... Dark Blue/Orange...Dark Blue/Tan, and the suspect wire, Dark Blue/Dark Green...All three should read the same...There is a fourth wire in the connector (Brown White)...It is the input ground from the Engine Oil Pressure Switch and must be present...
Without a meter the best you can do is to inspect the connector...It is not as rare as you may think that you replaced a bad Ignition Coil with another bad Ignition Coil...Send a comment...
Guru.....saailer
I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867
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