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2002 2.3 down on power
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10-04-2018, 08:05 AM
Dirtman
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Join Date: Jul 2018
Posts: 516
Re: 2002 2.3 down on power
Have you ever replaced the upstream o2 sensor? Do you have access to a scanner with live data so you can read the fuel trims? Do you have a vacuum guage? Very easy to test clogged cat with a vac gauge.
Dirtman
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