Hi,
Have the same codes returned? I ask because the codes indicate an issue with fuel pressure again. The P00C6 indicates low pressure. The P0087 is a general code that is set if lower pressure is detected.
Have you contacted the place that installed the high-pressure fuel pump? It sounds like it may have failed again if the codes returned.
Let me know.
Joe
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Tuesday, July 11th, 2023 AT 9:09 PM