

| Subject: | 1.9 ltr WBX O2 sensor question? |
| From: | T Collins |
| Date: | Mon, 21 Sep 2009 09:21:48 -0400 |
Hello Folks, How quickly does the O2 sensor give a signal to the ECU? I notice a split on the green wire connector to the sensor. I patched it with a new connector. I noticed that the green wire seem like 2 wires one inside another sheet. Does that seem familiar? I am still having problems with what seems to be Vanagon Syndrome. I am trying to find out why the van will idle fine and smooth for a minute or two and then miss idle. The timing mark is steady with the split on the case until a minute or two then it jumps around from the case point and then to the left (facing the van from the rear) drivers side of the van. If driven the van still runs like poo, buck and continues to stumble The idle then becomes ever so erratic. What could make this mark jump like so? Spark: New spark plugs (double checked the gap) New plug wires New rotor New cap Timed with static light using recomendations on rpm and timing settings. Air: Vacuum lines checked with carb cleaner Little vacuum lines replaced New air cleaner New injector seals Fuel: New pre pump fuel filter (the square one) New fuel lines Pump seems to be humming along Grounds: All grounds to the chassis under coil there checked and cleaned. I am missing something....I just dont know what it is: Plan: Replace temp II sensor Place capasitor on AFM Check O2 sensor Re-time (x100) Thanks, Tony -- 82 Scirocco "Rodolfo" 85 Vanagon "El Guapo" 90 Fuji Ace
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