1998 Volkswagen Cabrio Q&A
1998 Volkswagen Cabrio Question: What else could be wrong?
Vacuum line break. One of the air intake lines may have cracked, came off or has a hole in it. Usual culprit is the PCV hose. Start vehicle and spray carb cleaner on the intake hoses. If the engine starts surging, you have found the faulty hose. Best I can come up with the info. given. - csubak30
The (red) signal is flashing intermittently, but the gauge says my motor is just at normal temperature, what's wrong you think?