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Old 09-29-2018, 04:53 PM   #11
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Originally Posted by amc49 View Post
How do all you people have so much trouble with Bosch O2 sensors? Have them on everything I got and they run perfectly and for years. We are aware that Bosch was the creator of the original O2 technology right?
I ordered a Bosch O2 sensor online that said it was for my Chrysler. It was actually a universal with a plug that you had to crimp connect a pigtail to. No solder of course. I found that to be pretty rinky dink. Worked fine for about a month, then started throwing codes about an O2 heater malfunction. Wire connections checked out. The Chrysler forum I was on had a number of complaints about the Bosch units. I put an OEM one in and it worked fine until I got rid of the car at 240k.

Yeah, I’m aware of who Bosch is. That’s why the first one I bought was a Bosch. Their history doesn’t mean squat to me if I can’t pass emissions.
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Old 10-01-2018, 02:35 PM   #12
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Rule #1 with O2 sensors is to NEVER buy a universal one, the self-crimp connections will KILL you. O2's are very low volt units and ANYTHING wrong with the connection and they simply don't work right. The resistance can go up so little you think the connections are fine and they would be--for 12 volt, but at the low volt/amp there they are NOT. And, if the wiring showed good then you could have easily powered up the heater to see if it worked or not in seconds to then see if it was heater or connection trouble.

Like I say..............a long stream of Fords with Bosch O2's, and zero issues and never any trouble at all.
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