Motorcraft doesn't make the upstream o2 sensor for my 2006 mustang gt anymore but says the downstream o2 sensor will work. I've replaced the o2 sensor with three different Motorcraft part #dy-1401 and I get the code that says slow response from that o2 sensor evertime. Switch it with the other side that has the original one in it and it works. Anyone else have this problem since ford decided to do away with the upstream o2 sensor?
Upstream o2 sensor problem
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clardy1970
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Motorcraft doesn't make the upstream o2 sensor for my 2006 mustang gt anymore but says the downstream o2 sensor will work. I've replaced the o2 sensor with three different Motorcraft part #dy-1401 and I get the code that says slow response from that o2 sensor evertime. Switch it with the other side that has the original one in it and it works. Anyone else have this problem since ford decided to do away with the upstream o2 sensor?
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So you switched the driver for the passenger and have no issue with either side now?
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No my problem just switched to the other side so I know it's not in the wiring
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The 1401 is a Bosch made unit if I recall correctly. Bosch O2's are known for throwing a slow response code on the 4.6L 3v. I know from personal experience as well as for others on here.
NTK made the O2 sensors for Motorcraft. If you look on the original unit you should see NTK stamp on it. When that said, you can get the NTK units from Rock Auto. I've used them with no issues.
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Bosch products were excellent when they were being made in Germany. The quality went down when they started outsourcing production in the Far East.
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I may have to try the NTk. What if I put 2 of the slow response sensors in that I already have would that even things up or would I just get a cold on both sides?
No it would just enhance the issues you have......
Yes and the fact they were sued in world court, US court and Europe for being part of an international scheme to withhold advanced tech from the automotive industry
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The only way to get around a slow response code on the Bosch units is with a custom tune, which will cost way more than just buying the NTK sensors. The tuner would have to set the delay period long enough while the ECU stays in open loop until the sensors heat up enough to begin producing voltage and signaling the ECU to go to close loop mode. You get the code right now because the sensor(s) are taking too long to heat up and begin producing voltage.
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Ok thanks man.
YES- NTK is the oem manufacturer!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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What's the trouble code exactly?
Always post that in your opening discussion.
I'm also a bit confused in what exactly you switched around. Please try to reexplain that.
This problem might not even be from a sensor or the wiring. O2 circuit codes don't mean that the O2 sensor is to blame. From how I'm reading your description you have a problem that's causing this problem on one engine bank. You could have a tiny exhaust leak that's barely perceptible that's not allowing the sensor to heat up enough. A pinhole or bad weld can and many times has been to blame for codes of this nature.
You knowingly put the same wrong O2 sensor in 3 times and expected it to work. In certain applications the upstream and downstream ones may be able to be swapped but seeing how the downstream sensor is supposed to usually read a different range than the upstream it probably won't. I don't know where you read that it's the same but I'm doubting that's correct.
Think about it, why would all the manufacturers make a whole different part # for less than 5" difference in wire length? Even the budget brand manufacturers make a different part # for the front/rear O2 sensors.
It seems NTK originally made them for the first few years of the S197 Mustang but that changed at some point during the S197's run. For the 2005-10 Mustang GT, Bosch actually makes the replacement O2 sensors for Ford so you should be just fine if you buy the correct upstream Bosch brand sensor. In fact, I have myself and I've had no problems since.
I know that Bosch started making the O2 sensors for Ford at some point for multiple vehicles and for more than 10 years now at least. I had an original Bosch made O2 sensor with the Ford oval on it in a 2013 Ford and instead of buying the more expensive Motorcraft boxed Bosch sensor I replaced it with a Bosch boxed one. It's been many thousands of miles and it works perfectly fine given that I have no other issues that would affect my O2 sensor readings.
Also, the correct upstream Bosch 15717 says it was assembled in the USA on the box so it's undetermined where all the parts to make the sensor were sourced from. It could be Mexico, Canada, Germany, etc just as easily as it could be Taiwan, S Korea, China, etc.
I've never liked that somehow these manufacturers are allowed to get away with not disclosing where the parts came from. Assembled in the USA isn't quite the same as made in the USA. It's their way of getting away with not stating the countries of origin. They should be made to specifically state each country where the parts came from if it's not in the USA.
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You mean NGK? And no one saves money on Rock Auto. Lol Don't be lazy find a coupon for Some of the local auto parts store. Rock Auto was ripping Mom and Pop mechanics. They promised a discount if they kept buying. Nope . Look it up.
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No, I meant NTK just as I said. It's an NGK product line.
It was anything but lazy to find a lower price for the same product. I research everything that I buy. The Bosch brand was $25 cheaper than the made by Bosch Motorcraft one. They're the same exact product right down to the minute details. I would classify $25 as genuine savings. Usually, I buy Motorcraft branded parts but this is one instance where it made little sense.
You can spend your $ where you like but I spend my hard earned $ on name brand parts only and where they're significantly cheaper. Advance, Autozone, etc aren't usually priced well enough to visit them often even with a 15-20% coupon which doesn't apply to everything. Rockauto is often the cheapest option despite the shipping charge. Local auto parts stores also don't have the selection that Rockauto typically has and they largely sell mostly generic crap which I always avoid.
Also, going by everyone else's comments, you're on your own as far as thinking that Rockauto doesn't save you $ compared to the "local" mega chain auto parts stores.
No idea what you're talking about with "ripping" mechanics. Did you mean ripping off? Corporations usually always look out for their own profit at the expense of their own customers and that includes Ford themselves.
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Also be sure to use dielectric grease on the connector pins. Coat the connector and then plug it in, disconnect the plug, wipe down any excess and then reconnect it. Has saved me from "bad" o2 sensors before
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