Moin Moin, after our 1998 Lumina with 3.8L V6 has problems from time to time, and these disappear again and then appear again, I had the opportunity yesterday to connect a diagnosis PC. However, the values are more funny than conclusive. Turn of 9000 and speeds of 136kmh in parking position. Brief history: Our Lumina had until last year always irregular or rarely the phenomenon that the Lumina started normal and after approx. . 5 km drive just started running unround. After a few minutes he ran normal again. Error code there is no. It always occurs when the engine is cold and then you drive the engine warm. He takes gas quite normally and if you give gas, only in the stand he ticks around. Here is the live video of yesterday:http://youtu.be/KRF2dll2qbE http://youtu.be/GJjDMIgB9ms http://youtu.be/VDvNZ9s7G10 And once live data of the ODB2:ScanXL I’m starting to really despair because you miss it. Changed: – Spark plugs – Ignition cable – Lower suction bridge seal – Upper suction bridge seal and suction bridge – MAF Sensor – AGR Valve – TPS Sensor – All liquids that the car has