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Jaybird61, ASE Certified Master Technician
Category: Chrysler
Satisfied Customers: 629
Experience:  Automotive Instructor at Palm Beach State College
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2003 Chrysler Town and Country, 3.8L. Filled with gas while

Customer Question

2003 Chrysler Town and Country, 3.8L. Filled with gas while it was running, which always causes a fuel miss for a few mins. That went away. Drove normally about 5 miles. Shut it off. Restarted to a heavy miss and a flashing check engine light. Haven't read the codes yet, but cycling the key gave code P1684. Any ideas?
Submitted: 3 months ago.
Category: Chrysler
Expert:  david craig replied 3 months ago.

Hi Im David the 1684 code is due to cycling the key...its not a problem. the flashing check engine light is telling you the the engine is misfiring and you need to have the codes read to identify the misfiring cylinders.

Expert:  david craig replied 3 months ago.

checking in to see how its going

Expert:  david craig replied 2 months ago.


Expert:  Jaybird61 replied 2 months ago.

Hi I am Jay,

You should not fuel your car with the engine running. If your engine is running rough after refueling then the most common cause is the emission control purge valve leaking for the fuel tank vapors. The vapors will cause the misfire for a few minutes and may even cause hard start after refuel.

Customer: replied 2 months ago.
It ran well for about 20 miles after the refuel. after it was parked about an hour, it began to miss. It is giving codes 1297, 300, 305 and 306
Expert:  Jaybird61 replied 2 months ago.

The code P1297 is for low MAP sensor reading from a possible low vacuum condition. This can be due to cylinder number 5 and 6 misfire. The misfires if they continue for the two cylinders maybe caused by broken valve springs in the cylinders. Have a compression test done on engine to see if this is the case of low compression on the two cylinders.

Expert:  Jaybird61 replied 2 months ago.

If no further questions then please accept answer and rate me with 5 stars. Thanks.