Mazda Repair Questions? Ask Mechanics for Answers ASAP
Hello, my name is***** you done a compression test? Thanks.
Have you verified spark is good and verified injectors have good power and ground pulse?
Minimum compression for this engine is 139 psi but it should normally be close to 180. All cylinders have 125?
All cylinders have a 125 psi?
Considering what all has been replaced and tested I don't see any other possible problem besides the low compression. Like I said, book says minimum compression should be 138 psi. Next step is to do a cylinder leak down test to see if air is being lost through intake valve, exhaust valve, or piston ring then make repair as needed. Let me know if you have more questions, thanks.
No problem, sorry it isn't something more simple. Let me know how it turns out or if you run into questions. Have a good day!