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Dan the dealer told me that there was no codes for the trans, but did have a vac leak on the motor. I have hooked up my scan tool and I only get P1171, P1174, P0171 and P0174
These are the 0 2 sensor correct or could it be a vac leak
runs great under acceleration but on idle when cold like crap when warm up it smooths out
Dan, Sorry I havent gotten back to you for awhile but I have tried the starting fluid, no leaks showed up. Im still lost at this whole thing of the flashing hold light.
Dan it would be a 2.5L
Replace the PCV valve and check pcv hose and elbow for leaks. If your sure there are no vacuum leaks then replace the mass airflow sensor. Let me know how it goes or if you run into questions. Thanks.
2003 Jetta left rear window blue plastic part of the