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Old 06-29-2003, 07:41 PM
manny manny is offline
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Join Date: Feb 2003
Location: Ontario, Canada
Posts: 3,160

There are two quick checks you can do to verify your suspicions:
1. Hook up a vacuumgauge temporarily, floor the pedal & observe
You should see 0 or close to 0 vacuum ( if the engine can't exhale, it can't inhale either).
2. Now it get's a little trickier. You can get a back-pressure reading ahead of the cat, if you have the appropriate gauge. Not sure what the spec's are on that engine for back-pressure, but maybe somebody else does.
Good luck.
2007 C 230 Sport.
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