Significant loss of power

theEnoch

Member
:
2002 protege5
02' Protege5
Kenneth Flashed ECU last October
K&N Intake

Cruse set at 70, 6 miles from town, started loosing speed climbing a small hill. Shifted to fourth, accelerated back up but noticeable power loss. Continued to loose more and more power until it died and would not restart. Came back 10 hrs later, would not start, so we pulled it to the mechanic. Mechanic started it the next day and "could not find anything wrong". I drove it 100 plus miles today and although it runs smooth, it clearly has a significant loss of power.

Thank you for any help!!
 
Possible clogged catalytic converter. Do pressure test using O2 sensor opening in the exhaust manifold.
 
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