Question about 2001 Cadillac Seville
I have a 2001 STS that had the same problem - Service Engine light and returned the P0410 code. It ended up being a small rubber hose that had pulled off one of the plastic lines in the secondary air system. In fact, I just fixed this last night.
Pull off the top engine shield (the one covering the motor and the fuel injectors, not the plastic one at the front of the car) and look for loose lines, hoses or wiring.
Also - if you remove the shroud under the engine (you just have to pull out a bunch of plastic retaining plugs) you can get at the lower elements of the SAS. Look for loose lines, hoses or wiring.
You could be fortunate and just have a loose line. Does the caddie run OK?
Posted on Aug 02, 2010
Havent a clue ,from this old dinasaur to a liitle young mechanic sorry have a clue.You see here in spain they stick a nozzle up the exhaust ,and run engine at 2500rpm then check readings .Only vehicles from 2005 use OBDII in europe and most of these vehicles from this date use encrypted software so its a complete waste of time buying a snap on scanner because it would only read a funny code number that wasnt releted..Turkey for the dealer and bread and lard for the rest of us mechanics
Posted on Nov 20, 2009
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Posted on Jan 02, 2017
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