Logo

C1784 Engine Trouble Code

Meaning of C1784 engine trouble code is a kind of chassis trouble code and C1784 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.

C1784 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 C1784 code is occuring now you should check C1784 repair processes.
Now don't ask yourself; What should you do with C1784 code ?
The solution is here :

C1784 Possible Solution:

C1784 Engine

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.

C1784 Code Meaning :

C 1 7 8 4
OBD-II Diagnostic Chassis (C) Trouble Code For Engine Fuel And Air Metering Fuel Rail Pressure Sensor Circuit Malfunction Ignition/Distributor Engine Speed Input Circuit Malfunction Timing Reference High Resolution Signal A Too Many Pulses

The catalytic converter has an oxygen sensor in front and behind it. When the vehicle is warm and running in closed loop mode, the upstream oxygen sensor waveform reading should fluctuate.

C1784 OBD-II Diagnostic Chassis (C) Trouble Code Description

C1784 engine trouble code is about Timing Reference High Resolution Signal A Too Many Pulses.

Main reason For C1784 Code

The reason of C1784 OBD-II Engine Trouble Code is Fuel Rail Pressure Sensor Circuit Malfunction.

C1784 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.