1999 P71 w/poor horse power

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1999 P71 w/poor horse power

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1999 P71 w/poor horse power - 6/27/2008 7:03:50 PM

CrownVicInterceptor

Posts: 4
Score: 0
Joined: 1/5/2007
Status: offline

I have 1999 P71 with poor horse power, recently I replaced the factory cats, O2 sensors, mufflers and air intake system with Walker cats, Bosch o2 sensors, super 40''s and a K&N air intake kit.

Would a mass air flow sensor be faulty, causing loss of horse power, would the check engine light come on, being it''s an electrical unit?

How can I pin point the problem?

What other improvements can I make?

(Currently the check engine light is not on.)