Hi Guys,
Long time reader, First time poster!
You guys are a welth of information! Thanks for sharing!
I hope this is posted in the right place. I did search, but didn't find my answer.
I am about to change the O2 sensors (before my XCAL gets here) and I have found two part numbers for the Bosch sensor that I need. I just wondered if anyone could tell me what the difference is and which one I should use. The part numbers I found are: 15716 and 13117. Maybe someone knows which one Mike suggests to use with his tunes?
Thanks,
Gregg

 

Hi.

I hit AutoZone for ya:

www.autozone.com. Search for 'exaust gas oxygen' and plug in the required MY info, etc ....

BOSCH
O.E. TYPE 13117

That's the front O2's you need to change. A 30-50k maintenance item.

Cheers
Grog

 

Hi Grog,
Thanks, that's one of them.I guess I should have been more specific.
Here's the descriptions of both. BOTH are listed for my truck.You can get both at www.partsamerica.com

Part number: 15716
OE Type; 4 Wire; Heated; Upstream Sensor

Part Number: 13117
OE Type; 4 Wire; Planar; Upstream Sensor

That's what I'm trying to figure out. I guess it's the HEATED and PLANAR part I was looking to get an answer on.

 

My '04 5.4 takes the Bosch 13117's. Just changed them last week..
Most people don't realize the importance of changing the 02's on a regular basis as Mike suggests. My truck is living proof that it SHOULD be done accordingly..We were having a terrible time getting the A/F's straightened out until Mike suggested that I change the upstreams. Once I did, it responded by running right on what he was commanding...

 

Hi.

Don't know what the Planar term is referring to, but a 4-wire sensor is a heated sensor in any case ... (2 for the signal, 2 for the heater).

The 15716 has a 8.5" wiring harness ... but is functionally identical to the 13117.

Cheers
Grog

 

The planar sensors have a "flat" ceramic type element up front. As opposed to the older "thimble" type. The planar heats up faster and therefore can provide info back to the PCM faster. Better performance.

I think most of the newer vehicles are using the planar type, now. Yours, Im sure, is the "planar" type.

Good luck,

Joey

 

Thanks Joey. After some more research, I found some info on Bosch's websight. Here it is if anyone else is interested. http://www.boschusa.com/AutoParts/FAQs/OxygenSensors/
Now I just wish Mike would read this and reply with one of his "white paper" reports, ....um, I mean answers

 

Hey guys. How hard is to change one of these. I have done fuel filters before but not O2 sensors.

 

I'd like to know also how bad of job this is.whre are they located exactly?

 

The *correct* upstream Bosch O2 sensor to use for the 2004 5.4 3V F-150 is the Part# 13117 - we get them from AutoZone.

Now to get the correct Part# for your vehicle, drop by AutoZone.com - and plug in your specific vehicle info. There are numerous Bosch O2 sensor part #'s, most of it is simply th different wiring harness lengths - 8.5", 13". 16.5", etc. So the ask for 2WD, 4WD, etc info.

For example, just looking under 2WD 1/2 ton F-150;s, for the 4.6 we found:

1997-2000 4.6 F-150 2WD takes # 15718 with a 16.5" harness, and 15716 with a 8.5" harness.

Then for 2001 & 2002 4.6's, we found # 15716, and then for 2003 4.6's, we found # 15717.

In the 5.4 2V's, from 1997-1999, it's 15718, then in 2000, it says 15717 for 13" harness, and 15718 with 16.5" harness.

For 2001 & 2002 F-150 5.4's, it says to use 15716, then for 2003 & 2004 5.4's, either 2V or 3V, it says to use # 13117 - and for the 2005's, it said to use 15664.

Now please do NOT take these numbers as "the gospel according to Mike," I'm just letting you know what I found doing a quick search on AutoZone.com for these various model years & engines, all using a 2WD configuration - I strongly urge each of you to double-check the correct part number for upstream (front, or "before the catalytic converter") O2 sensors for your specific vehicle's model year, engine, 2WD/4WD, etc. to make sure.

I can tell you that the 13117 is what we use on the 2004 5.4 3V's, and it works like a champ. And as Marc said, it's all the difference in the world when you have O2's that are not behaving properly, and that can happen even on a brand new vehicle right fro the factory - even though it passes the silly response time test at a Ford dealership! His 2004 5.4 3V truck's O2's were bad from Day 1, we suspect, given the number of times we've dyno'd it and how much work it's taken to tune it to make proper power and give any kind of workable A/F ratio, compared to how it acts now - and his is a truck that has always seen nothing but the best fuels & maintenance.

Replacing his 2004 5.4 3V's O2's completely straightened it out and it immediately started running like an animal - picked up 15+ Hp at the rear wheels and another 3.0 MPG once replaced - those are hard & verified numbers, and the MPG numbers are based on cruising at 80 mph. His before mpg was 13, his after mpg is a solid 16 mpg at 80 mph, including running thru the mountains of Virginia & West Virginia. His mods are AF1, E-fans, and Magnaflow. His truck had a little over 30K miles n it, and we had dyno'd it numerous times over it's rather short lifespan, and it had that problem all along - until now.

His was *also* one of the trucks that was running lean in stock trim from the factory - despite a commanded 12.0, his truck delivered 14.2:1 A/F dead stock - terrible - and it took me 6 hours of pounding on it over 2 days last September just to get it to deliver a 12.6:1, during which time we picked up 40 RWHP from our tuning and the AF1 intake, going from 210 to 250 RWHP.

So just some quick FYI info for whatever it may (or may not!) be worth, gang - I hope it helps a bit.

 

You call those *mountains*?!?!

Kidding aside, from what I remember reading here on these forums, my '05 4.6L doesn't have that A/F problem, does it?

I almost am sure that only the 5.4L 3 valves were the only trucks with that problem, right?

TIA

102

 

why do you have to change your o2 sensors?

 

Their ability to produce voltage becomes degraded as deposits build up or something like that. If an upstream sensor is not working correctly the result is a rich F/A mixture. Then you are wasting gasoline and working on a premature death of the affected cat.

http://www.babcox.com/editorial/ic/ic10044.htm

 

HI Beowolf,

Hey, it's what passes for mountains around here!

And I hate to burst your bubble, but every single 2005 & up 4.6 F-150 we have ever dyno's has shown dead lean A/F's, like 15.0:1 - so I've be very surprised if yours did anything different - I expect it to run lean like the rest of them that we've seen, as so far, every single 2005 & up 4.6 F-150 has had that problem. In the 5.4 3V's, as best we can tell according to the data we have so far on bone stock trucks, it's about 1 to of 5 in those - you may get 20-30 in a row that are finer, and then get 8 in a row that are fubar - it's completely random with the 5.43 3V's, but very predictable lean with the 2005 & up 4.6 F-150's from what we have seen, so I expect your truck to probably be the same - hence, why the datalogging is so important!

 

Oh, and by the way - in our experience, as the O2's degrade (or are bad to begin with from the factory, as Marc's apparently were in his 2004 5.4 3V), it doesn't go richer in these trucks, they tend to do just the opposite - go leaner. We don't pay much attention to articles, what someone else finds, etc., we work off our own data, and aging O2's, just like a dirty MAF, tend to cause lean conditions, not rich conditions, in our experience with these trucks - just FYI.