P0087 Chevrolet -

Question

message came up-engine power reduced, and it was greatly reduced, called Onstar to run diagnostics, gave me engine code p0087

Answer 1

HI there,

This code is for low fuel pressure. This can be caused by a faulty fuel pump or fuel pressure regulator. This does require special tools for testing as the fuel pressure is extremely high on this engine.

P0087 

The actual fuel pressure is 1500 kPa (218 psi) less than the desired fuel pressure.