Mazdaspeed OEM Wastegate actuator = $$$$$$$$

hornsfan10609

Certified Mazda Tech
:
2003.5 Mazdaspeed Protege x2
Fuel cut is only at full throttle and the car will cut out a second. It's abrupt like slamming on the brakes but just for a second. The car won't die it will keep running and the boost will drop off. Check that your battery terminals are tight and clean and the main fuse in the underhood fuse box is secure.
 
:
2003 MSP
Its not stalling. just a violent burst like you describe. It will happen at 3/4 throttle too and before I replaced the actuator, I couldn't rev it past 4,500 at all without getting it. I'm not sure now if its fuel cut. My boost gauge should arrive tomorrow, so that will help diagnose it.
 

mazdaspeedp

Member
Contributor
:
2003.5 Mazdaspeed Protege
Atp makes a great wastegate imo. I have ran one for 7 years and it does great on the msp. Oem is way to expensive
 

Allen

世界杯
Contributor
:
2019 Acura RDX A-Spec AWD
Wow, talk about an old thread. My aftermarket wastegate actuator replacement never failed my MSP prior to me having to trade it in (2019). (drive)
 

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