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Kevin, Auto Mechanic
Category: Mazda
Satisfied Customers: 2180
Experience:  Diagnostic technician
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Code P1518 Variable Timing Control System Malfunction, P1518

Customer Question

Code P1518 Variable Timing Control System Malfunction
JA: Just to clarify, what's the exact code? And have you tried to reset it?
Customer: P1518 yes check engine lite comes back on after a couple of miles.
JA: What is the model/year of your Mazda?
Customer: 2001 Miata
JA: Are you fixing your Miata yourself? What have you tried so far?
Customer: Nothing yet
JA: Anything else you want the mechanic to know before I connect you?
Customer: Car only has 35000 miles
Submitted: 2 months ago.
Category: Mazda
Expert:  Kevin replied 2 months ago.

Hi im kevin you need to check vac hoses on intake manifold .the code refers to .intake tumbler stuck open this is a vac controlled part inside intake and the vac hoses are common to perish and split