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P1187 Engine Trouble Code

P1187 Engine

When you check engine light came on code P1187 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However your vehicle's manufacturer may have a different definition for the P1187 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

Theoretically you can drive for a few weeks or even months with a broken MAF sensor. You will notice a decrease in gas mileage and over time the car will eventually start stalling a lot. At a shop, the replacement cost is between $200-$300 depending on the car, but that's usually the cost of parts because the labor is relatively simple.

P1187 Code Meaning :

P 1 1 8 7
OBD-II Diagnostic Powertrain (P) Trouble Code For Engine Fuel And Air Metering Engine Oil Temperature Sensor Malfunction Cylinder 1 Injector Circuit Low Crankshaft Position Sensor B Circuit Malfunction

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.

P1187 OBD-II Diagnostic Powertrain (P) Trouble Code Description

P1187 OBD-II Trouble Code Variant Selection is one of the definitions for the P1187; however your vehicles manufacturer may have a different definition for the P1187 code. Please check below for your specific make. P1187 code.

Reason For P1187 Code

The reason of P1187 OBD-II Engine Trouble Code is Engine Oil Temperature Sensor Malfunction.

P1187 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.