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  1. Maf graph spikes at idle

    New Member Introductions
    Bought a 2004 b5.5 Passat 1.9tdi recently and have been having some trouble with the car going in to limp mode. Scanned it with a torque obd2 scanner and discovered that the maf graph spikes like crazy even at idle. This led me to replace the maf sensor, but this has still not solved the issue...
  2. MAF under-reporting? With Graph.

    Volkswagen Passat B5 Discussion
    Is this MAF under-reporting. It is a 2.0 AZM Motor, at sea level at around 17 deg C. Curve seems to be smooth enough and relates well do what the motor is doing (with the limitation of slow sample rate). Graph is a little hard to read but: 3300rpm = 51GPS 4300rpm = 70GPS 5850rpm = 100GPS...
  3. Log Group 11 Graph Here

    B5 Garage
    Had Limp mode problems. I did a log today Group 11 i made a graph.Ill post all the data Log Excel and the Graph i made. I hope someone tell me where is the problem. Here is all the log in Excel LOG-01-011-xxx-xxx.CSV Hope someone can help me where is the problem Thanks
  4. Vag Com logs with graph

    B5 Garage
    So i´m doing a few logs with vag-com to check the main differences between lpg and premium gas, it´s a way to check if everything is ok too, please make some comments:thumbup: Wot run in 3rd gear with lpg: No retard at all, i guess its good, my ecu can´t read exhaust temperatures, it´s the...
  5. Help with P1557 - Graph for Boost

    B5 Garage
    2000 1.8T ATW Tip 138K miles, stock. I'm a noob when it come to turbos so bear with me. I've read a bunch of posts regarding this code (P1557 Charge pressure control:positive deviation) and most point to a DV or N75 valve. Are there any measuring blocks I can log to determine which it is? Or...
  6. Anyone have a fuel economy vs speed graph for 1.8T Tips?

    Volkswagen Passat B5 Discussion
    I know that it's a little different for each car, but because of its taller 5th gear than your run of the mill Taurus or Camry, do you think that the Passat can go a little faster while still maintaining peak fuel economy? I usually do 65 speedo/62 gps for my guess at peak fuel economy. In the...
  7. Interpreting this VAG-COM graph?

    B5 Garage
    Help with this VAG-COM graph - is this normal?(SOLVED) Is this graph normal for a TDI? I got a vag-com-type cable recently, and I have been using the shareware version of vag-com to get me some useful info on the car and its behaviour, so I am learning new things. Is this graph of...
  8. Graph of MAF readings.....

    Volkswagen Passat B5 Discussion
    I ran my VAG-COM going from a stop in first up to about 3800RPM's to about 5200RPM in second. The drop off in the middle is during the shift.
  9. cold start warmup: a vag-com graph

    Volkswagen Passat B5 Discussion
    Wanted to test my coolant sensor this AM, so I logged block 11 from a cold start (overnight sit). MFC reads 53 degrees ambient temp, car was idled only long enough for fast idle to drop, then driven pretty gently between 25-35 mph for the first few minutes, then steady 50-55 mph for a while...
  10. My dyno graph.......

    Volkswagen Passat B5 Discussion
    APR 91oct chip, gutted cat, TT exhaust, stock DP, shortened intake snorkel Sorry about the size.....I am assuming the DBW is what is causing the surging http://www.auburn.edu/~mcgowmd/pic1.jpg <![CDATA[APR 91oct chip, gutted cat, TT exhaust, stock DP, shortened intake snorkel Sorry...
  11. LED graph boost gauge

    Volkswagen Passat B5 Discussion
    look at this a LED graph boost gauge in the tachometer face, to bad it is only for the Audi S4 http://www.stratmosphere.com/oct_s4_boostgauge1.htm only for the Audi S4 [Modified by aufnord, 12:58 AM 12/2/2002] <![CDATA[look at this a LED graph boost gauge in the tachometer face...
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