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ramonrhymes

ramonr ... 2/7/2013

2006 Buick LaCrosse CX 6 Cyl 3.8L

Engine

Does it matter if I use a universal Catalytic Converter versus the Direct Fit?

Took my car to Meineke they cut the old one off and installed the Universal Coverter. The Check Engine Light came back on. Could it be the O2 sensor instead?

2 Answers


HouseCallAuto

HouseCallAuto 2/8/2013

Maybe but I would have to know what the original code or codes were. I am not a proponent of universal cats that are hand welded back in. I use direct fit 99% of the time. The O2 sensors should have been replaced at the same time. I can't believe the bad practices that are happening out there. Some shops even condemn and replace the wrong cat and then wonder why the light came back on.

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Jimm

Jimm 2/9/2013

Nearly always, it's best to use the direct-fit style of converter; as you have found out - to avoid the chekc engine light condition - and to eliminate fitment problems.
Try the many on-line auto parts sources, such as; www.autopartswarehouse.com, www.partsgeek.com and www.rockauto.com for the replacement parts. For example, they (RockAuto) list the direct fit catalytic converter from around $182.00 for your vehicle.

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