Turbo related question

perrya

Veteran Member
Joined
Dec 16, 2011
Location
california
TDI
2006 Jetta BRM with 200K
I have a 2002 VW jetta 1.8T, after the car sits overnight or long period of time and engine cold, it takes 10 minutes of idle to warm the engine before driving to avoid some jerking. if the engine is warm or hot, there is no issues with the car. I suspect that the turbo requires some heating up before driving. Does the turbo need to warmed up when the engine is cold? is the turbo running in idle? This issue seems to be a heat related issue with the engine. There seems to be lag between the time you accelerate and the turbo, feels like the car is in neutral for a split second. Does the ECM need to re-calibrated? There are no codes.:confused:
 

wonneber

Top Post Dawg
Joined
Oct 12, 2011
Location
Monroe, NY, USA
TDI
2014 Jetta Sportwagen, 2021 Atlas,2003 Jetta 261K Sold but not forgotten
Do you have power brakes when the car is cold?
Thinking about a vacuum problem.
Not sure if the BRM needs vacuum for the turbo.
Maybe scan & log the boost pressure while cold.
Log requested & actual with the coolant temp to see if it starts at a certain engine temp.
The temp sensor is a dual sensor, one for the ECM, one for the gauge.

Rich W.
 
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