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Old 08-16-2016, 10:05 AM   #1
saxybiker
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2008 Astra XE
Default 08 Astra Fuel Tank Pressure Sensor

After cleaning the MAF, changing both O2 sensors and the surge solenoid, the last code says I need a fuel tank pressure sensor. I believe it is on the top of the tank and plugs into the fuel pump. The car is also making a thumping noise from the area around the surge valve. I thought it was an exhaust leak, but it's not.
Do I have to drop the tank to get to this sensor? If so, should I also change the fuel pump while I'm there?
Any help from you Astra Gurus would be appreciated!

Allen Gage
2008 Astra XE

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Old 08-18-2016, 12:22 AM   #2
smwalker
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2008 Astra XR
Default Re: 08 Astra Fuel Tank Pressure Sensor

Here is what it looks like. You do have to drop the tank. New Fuel pump not a bad idea at that point depending on your miles:

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Old 10-26-2016, 09:42 AM   #3
mondi
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2008 Astra XR
Default Re: 08 Astra Fuel Tank Pressure Sensor

Yes, you will have to drop the tank to access the sensor and the wiring...Had a similar issue and I bought the sensor and asked for a local shop to do it for me (I don't have everything I need to do this job). For me, it ended up to be the wiring to the fuel pressure sensor dirty or something like that (improper connection to the sensor). They cleaned up the wiring to the sensor and everything was working great after that. I ended up returning the fuel sensor back, since I didn't used it. You still need to drop the tank to access the entire wiring...it's a bugger, they didn't create an access door under the back seat like some of the cars have...I looked and there is the round area under the back seat where the "access door" is supposed to be, but they didn't cut the under body of the car to install it.

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Old 07-19-2019, 01:37 PM   #4
AniaDeely
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Default Re: 08 Astra Fuel Tank Pressure Sensor

Hi...I had this kind of problem on my 1.9cdti 120 8v, changed in tank pump, fuel filter, one injector after leak down test.
Garage came up with a problem with rail pressure, after plugging in to a proper diag computer not a code reader.
In the end I solved it by fitting a new high pressure pump.

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