I am challenged by my vw's inconsistent*level*of power and acceleration. On cool rainy days i get close to*normal*pulling power and acceleration , however when the weather is warm and dry, acceleration is flat, almost like it goes into limp mode, yet not as severe.. If I turn*the engine off and restart,*the low power comdition*persists.
In the past*I had been having over boost issues resulting in the car going into limp mode. After recalibrating the turbo actuator to hit the stop (full boost) at 17 inches of mercury I haven't had the over boost limp mode occur as is was. The current problem seems like a different set of behaviors.
Could it now be under boosting? If so, why would power return on cool damp days? I do hear the whistling sound of the turbo spooling up in all weather conditions.
Vacuum hoses are new. I did see a frayed end of the new*vac line that enters the air filter box. The turbo, actuator valve, and N75 valve are a couple of years old, as is the MAF.*I do not have vag-com.
In the past*I had been having over boost issues resulting in the car going into limp mode. After recalibrating the turbo actuator to hit the stop (full boost) at 17 inches of mercury I haven't had the over boost limp mode occur as is was. The current problem seems like a different set of behaviors.
Could it now be under boosting? If so, why would power return on cool damp days? I do hear the whistling sound of the turbo spooling up in all weather conditions.
Vacuum hoses are new. I did see a frayed end of the new*vac line that enters the air filter box. The turbo, actuator valve, and N75 valve are a couple of years old, as is the MAF.*I do not have vag-com.
2000 golf tdi loss of power on warm days
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