No, no codes so far anyway. Your P0088 code could be linked to a faulty fuel rail pressure sensor. If you have the means, clear the code and see if it comes back. Not sure how the rail can receive that code unless the over pressure relief valve was replaced was replaced with a plug. I guess if your Fuel Control Actuator on the CP3 was bad that could prematurely send more than required fuel pressure to the injectors. If that was the case you'd get noisy injectors and perhaps derated power. Are you getting injector noise or poor performance?
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Good job, especially not using a damn rail plug.
Did you have any codes along with this? I have a p0088 code on my 2004.5, I can’t tell if it’s fuel pump or the pressure relief valve
No, no codes so far anyway. Your P0088 code could be linked to a faulty fuel rail pressure sensor. If you have the means, clear the code and see if it comes back. Not sure how the rail can receive that code unless the over pressure relief valve was replaced was replaced with a plug. I guess if your Fuel Control Actuator on the CP3 was bad that could prematurely send more than required fuel pressure to the injectors. If that was the case you'd get noisy injectors and perhaps derated power. Are you getting injector noise or poor performance?