Hi - My '98 Beetle Ute had a little oil leak, so I had it up on my lift, and was checking for the source. One I located that and fixed it, I ran the engine for awhile to leak check and see that all was A-OK . Now the oil leak is no more, but I saw a Check Engine light on ! I connected my scanner, and it read the ECU system and told me the problem was code IS0 9141. Of course the factory shop manual doesn't use this code system, so I am wondering if anyone out there can tell me what this code means ? Thanks for your help.