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sprinkles08, ASE Certified Technician
Category: Mazda
Satisfied Customers: 22694
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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My mazda protege falls on its face when accelerating from a

Customer Question

my mazda protege falls on its face when accelerating from a start. i am also seeing that the vacuum line from the brake booster to the intake plenum is or seems to be colapsed.
Submitted: 1 year ago.
Category: Mazda
Expert:  sprinkles08 replied 1 year ago.

Hello and welcome to JustAnswer!

The brake booster vacuum hose will need to be replaced.

The hesitation could be quite a few things ranging from the throttle position sensor, an inaccurate MAP or MAF signal, low fuel pressure, ignition issues, an exhaust restriction or fuel quality issue.

The first step in diagnosing the problem is to see if any fault codes have set. Have you checked for fault codes?