vacuum system DTC P2404
for 9 months now I have been getting this code P2404 and MIL on. I have changed the LDP pump, fuel filter and Purge valve, and checked all the hoses and I still keep getting this code. No hose leaks detected. It will come on nad go off in a week or so and come back after few days and so on. Anyone has any ideas what could be causing this? Does anyone has evap/vacuum system diagram for audi a6 3.2l q 2005? I can only find 5v turbo online.
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This is a leak detection pump sense circuit range/performance MIL. Check the vacuum hoses from the engine compartment to the pump for leaks and if the car is FWD, check the connection to the exhaust flap for a proper seal.
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RE: vacuum system DTC P2404
no hose leaks from engine to pump. What next?
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A6 2006 Same code no good wiring diagrams found. Used scanner to activate LDP no signal to pump from pcm. Suspect open between pcm and ldp.
Pump tested good pin 1-3 670ohms. pin1-2 16 ohms. customer needed the car so i was unable to continue my dignosis |
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