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Fiat 600 U3953 Engine Trouble Code

Fiat 600 U3953 if your catalytic convertor fails completely, you eventually won't be able to keep the car running. Your gas mileage will also be terrible, so you should try and fix it as soon as you can. Unfortunately, the average replacement cost is around $2,000 and you can't do it yourself unless you're an experienced mechanic.

Fiat 600 U3953 Code Meaning :

U 3 9 5 3
OBD-II Diagnostic Network (U) Trouble Code For Engine Ignition System Or Misfire Injector Circuit Malfunction - Cylinders Cylinder 1 Injector Circuit Low Exhaust Gas Recirculation Sensor B Circuit High
Fiat 600 Engine

When you check Fiat 600 car engine light came on code U3953 the reason should be . However manufacturer may have a different definition for the U3953 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U3953 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for U3953 code is occuring now you should check U3953 repair processes.
Now don't ask yourself; What should you do with U3953 code ?
The solution is here :

Fiat 600 U3953 Possible Solution :

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

U3953 OBD-II Diagnostic Network (U) Trouble Code Description

U3953 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For U3953 Code

The reason of U3953 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

Parts or components should not be replaced with reference to only a U3953 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.