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Upstream Oxygen Sensors and Fuel Tank Pressure Sensor Locations
So the car is aging a bit and the check engine light keeps popping up, this time around, i'm told it's both the upstream o2 sensors and fuel tank pressure sensors.
I can locate the o2 sensors, i just don't know which one is the upstream, can anyone help me identify/confirm it? (I'm assuming Bank 1 Sensor 1, Bank 2 Sensor 1)
As for the fuel tank pressure sensor, I'm assuming it's part # A1635422818, 1635422818 and that it's just a basic swap in one of the wheel wells (not actually touching the fuel tank)
I'm just not familiar where it's located, can anyone help with this?
In addition, i'm also swapping out the front right air strut (it started sagging)
Another expense
i wonder if it's time to get another car?
I believe I have replaced almost the entire EVAP system. Started with a P0456. Replaced the gas cap...no change. Replaced shut of switch...no change. Replaced the charcoal canister...that fixed it! Then a couple weeks later, P0446. Replaced the purge valve...fixed that for a couple weeks. Then got the big read red gas cap warning and a P0451...opened the fuel filler door and the (obviously) defective gas cap I had already replaced came apart in 3 pieces. So I limped it home, ordered another gas cap, replaced that, cleared the codes and all was well....for a couple of weeks. Then I got hit with another red gas cap warning, all of those codes again, and this time a P0451 to go with it. Is it possible most of these EVAP gremlins I've been chasing has been the pressure sensor?
No however, the fuel tank must only be filled to a maximum of a 75% otherwise the fuel may finds its way into the vehicle interior use an absorbent rag to collect any escaping fuel.
So I just looked under the seat at the fuel sending unit top and it doesn't seem to look like what was previously pictured. Any ideas here? Do I need a different part? Is the sensor located elsewhere?
FPS is integrated into pump. Original pump 2114701541 (yours) FPS is not replaceable and is replaced by current part 2114706094 requiring additional 2114400507 harness that incorporates replaceable FPS.
Last edited by konigstiger; Oct 28, 2020 at 06:30 PM.
Thanks for this konigstiger!!!!!
Considering i'm replacing the Fuel Sender unit (2114706094), which still requires disconnecting from the Fuel Pump (2114704194) on the other side of the tank, I'm wondering if I should just go ahead and replace that as well since it's all getting exposed/coming out? opinion?
And if i'm going to replace the Fuel Pump on the other side, is 2114704194 the correct part #? and is there anything else that I may need?
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