"bob and john" (bobandjohn)
07/22/2015 at 16:40 • Filed to: None
1
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"bob and john" (bobandjohn)
07/22/2015 at 16:40 • Filed to: None | 1
| 9 |
So, Dads A3 threw a CEL a few weeks ago. Finally got around to fixing it.
The code was P0470 (Exhaust pressure sensor)
110$ at the dealer (who had it in stock) for the sensor, and I was on my way to fixxing.
Now, something to note here. VAG 2.0L TDIs actually have 2 of the bloody things. one obvious, one note.
So the first one that I changed was G505. This was the part number 076 906 051B
The second location, G450, uses part number 03G 906 051G
So after I replaced G505, and the CEL still showed up (yes, i have a scan tool and reset it) I did some digging and found the second sensor.
As far as I can tell, the 2 sensors do the EXACT same job. The 051B is actually a updated/upgraded/better version of 051G.
“G505 measures the differential pressure across the DPF. This information used to develop one of two soot load models used to trigger DPF regenerations. G450 is used to help position the Low Pressure EGR Valve. It is
not likely
that these sensors are interchangeable. They are both differential pressure sensors (ie the compare differences in pressure between two points). This implies they have been engineered for their specific locations (i.e. correct DP range, zero setpoint, electrical properties).
I’m sure you intuitively feel that this may not be the best thing to be doing. Hence your question. Just because the physical sensors look the same, given the different P/N’s there is no reason to believe they can be interchanged. Germans are if nothing else efficient. If the same sensor worked in both locations they would have the same P/N. “
Hmmm.....maybe down the line i’ll replace the sensor G again. We will see if it works for the time being.
EDIT#2: So, reading further, it DOES look like the 2 do similar things...hmm...Will have to check with a dealer about this one.
EDIT#3: checked with dealer. the 015G has been dropped in favour of 015B. So i am good to go.
So, I replaced G405 with the ORIGINAL sensor from G505.
Clear code, start engine up, go for a drive. CEL is gone!
I will say this: G450? what a pain in the ass it was to remove. The clamp is facing the firewal...and you cant really move it. (that silver thing on it is just a heat shield. It has snap buttons on it)
Now, off to get that door ding pulled out :D
spanfucker retire bitch
> bob and john
07/22/2015 at 10:21 |
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As far as I can tell, the 2 sensors do the EXACT same job. The 051B is actually a updated/upgraded/better version of 051G.
Germany, ladies and gentlemen.
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bob and john
> spanfucker retire bitch
07/22/2015 at 10:24 |
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UPDATED
RallyWrench
> bob and john
07/22/2015 at 16:52 |
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Good job, these things go all the time. They were initially only available on their respective brackets under different part numbers, but VWAG has now wisely started providing just the sensor, our local dealer stocks them now. On VWs, they’re G450 and G451.
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bob and john
> RallyWrench
07/22/2015 at 16:53 |
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The difference was that one had a slightly different shape to it...which is part of the reason why I think it had a different part # as well.
ohw ell, its fixxed now, so IDGAF
SnapUndersteer, Italian Spiderman
> bob and john
07/22/2015 at 16:58 |
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So, Dads A3 threw a CEL a few weeks ago
How many Dads do you have?
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bob and john
> SnapUndersteer, Italian Spiderman
07/22/2015 at 16:59 |
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I’m in school to be an engineer, not a copy writer. Forgive my less then amazing grammar and spelling.
Brian, The Life of
> bob and john
07/22/2015 at 17:01 |
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I read that as “Code : Potato”
I need a vacation ...
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SnapUndersteer, Italian Spiderman
> bob and john
07/22/2015 at 17:02 |
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I’m an actual engineer, myself. My English (being not even my 2nd language) copy writing skills, while not great, are certainly better than decent.
There will always be critics; you can do it. Just believe in yourself and try harder!
The Compromiser
> bob and john
07/22/2015 at 22:29 |
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I used to make 13 or more versions of the same sensor. The only difference was mounting and interface points. Other than that if you cut them back to just the basic sensor components, they were the exact same parts.