1994 Mazda B2300 Q&A

1994 Mazda B2300 Question: check engine light comes on and stays on ...

after engine warms up ( 30 seconds) check engine light comes on AND idle drops down to 350 rpms at the exact same moment . these conditions remain thoughout the driving trip. -
Answer 1
The check engine light being on is telling you that the computer has detected a malfunction in the engine/emission control system. When the light's on there are data and diagnositc codes stored which can be accessed using a scanner, and there is history available.. Find a Mazda specialist to scan the computer and find out what's wrong. Here's a directory link for you: https://repairpal.com/directory?address=90803&car_brand_names=Mazda -