p0177pd what dose that mean there are (3) code (1)p0177-(2)p0661-(3)p0177pd

Question

i got 3 codes can you help me on what they mean

1. p1077
2. p0661
3. p1077pd

Answer 1

P1077 IMRC (Intake manifold runner control) system malfucntion  Low RPM

P0661 IMRC valve position sensor circuit low voltage

When you have a set code and a pending code both the same such as P1077 and P1077 PD which means pending you can disregard P1077, the problem that needs to be resolved would be P0661.The solenoid need to be check and the hose to the IMRC