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U1987 Engine Trouble Code

Meaning of U1987 engine trouble code is a kind of network trouble code and U1987 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 $2,140 and you can't do it yourself unless you're an experienced mechanic.

U1987 Fault Symptoms :

Check engine light comes on
Engine stalling or misfiring
Engine performance issues
Car not starting

If one of these reasons for U1987 code is occuring now you should check U1987 repair processes.
Now don't ask yourself; What should you do with U1987 code ?
The solution is here :

U1987 Possible Solution:

Gasoline engines use spark plugs to cause an explosion of fuel within the cylinder. In a properly timed engine, this explosion occurs at the proper moment to send the piston to the bottom of the cylinder and provide power to the drive shaft. If the plug wires are out of sequence, the explosion occurs at the wrong time. The improper timing of the explosion sometimes pushes the cylinder the wrong direction or interferes with the turning of the crank. As a result, the engine stutters or backfires, if it runs at all.

U1987 Code Meaning :

U	1	9	8	7
OBD-II Diagnostic Network (U) Trouble Code For Engine	Fuel And Air Metering	Injector Circuit Malfunction - Cylinders	Ignition/Distributor Engine Speed Input Circuit Malfunction	Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

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.

U1987 OBD-II Diagnostic Network (U) Trouble Code Description

U1987 engine trouble code is about Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical.

Main reason For U1987 Code

The reason of U1987 OBD-II Engine Trouble Code is Injector Circuit Malfunction - Cylinders.

U1987 code on vehicles with electronically controlled automatic transmissions, the 3-4 shift solenoid is responsible for actuating the hydraulic circuits to activate clutches or bands that change gears inside the automatic transmission.

	Example: 0140