P0453 Tank pressure sensor

[kimichi]

Okay, I'm back again with another question about error code P0453 for 00 986S.

I found the tank pressure sensor under the battery and checkout the wires and it looks good. I also viewed the fault text and it's fault #4 which indicts a short to B+, every other place I looked for answers about the code say, "check wire or replace sensor." The error code list P0450-52-53 says tank pressure sensor.

I was wondering if anyone else incountered this problem and just changed the sensor and did the error get solved or remained?

I've been searching online for that part and it seems that noone even has a tank pressure sensor, it keeps showing fuel/tank pressure regulator, no tank pressure sensor.

Can anyone help with the Part# and guide me to a place with a reasonal price where I can buy it? And also is the tank pressure sensor a common problem or just in some cases?

Aother question, does disconnecting the battery clear the code or would I need the scan tool to clear the OBD code or key on position & press the gas for 11 sec.?

I've seen websites with these answers but not to sure which is true. Ideas!

Edited December 3, 2008 by kimichi

[juniinc]

take a look at these,,,

http://www.renntech.org/forums/index.php?s...c=22015&hl=

http://www.renntech.org/forums/index.php?s...c=23234&hl=

[Tool Pants]

Last summer at a work on cars day a 1999 996 showed up with the 52 fault. Owner replaced the pressure sensor. With a PST2 I cleared the fault. He started up the car and drove it around and the fault did not return. Have not heard from the owner again so it must have been a bad sensor.

[kimichi]

Thanks for the info. about changing the sensor and clearing the code, (TP) that helped me. Much mahalos!

Now for the second part, I have no idea what the part# is and can't find the part online.

I guess I'll need to call porsche but parts dept. seem to never answer the phone.

Theres only one place I found it online for $214, is that the avg. $ for this sensor or does anyone know of a place where its lower in cost?

:renntech:

Edited December 4, 2008 by kimichi

[Stefan]

Before you replace the sensor, I would check the wiring to ensure that it is correct. (FWIW, "special tool 9616" is not required for this procedure; it just makes it easier).

1 Check wiring from pressure sensor to DME control module for short to ground.

1. Connect special tool 9616 to wiring harness (DME control module connector).

2. Remove connector of pressure sensor.

3. Connect ohmmeter to special tool 9616, pin 72, and ground. Display: Infinity ohms If 0 - 5 ohms is displayed, check wiring harness for chafing and pinching damage.

2 Check wiring from pressure sensor to DME control module for short to B+.

1. Connect special tool 9616 to wiring harness (DME control module connector).

2. Remove connector of pressure sensor.

3. Connect voltmeter to special tool 9616, pin 72, and ground. Display: 0 V If battery voltage is displayed, check wiring harness for chafing and pinching damage.

[kimichi]

Well, I'm back with results!

Just got fuel tank pressure sensor today and installed.

Problem fixed, no CEL. Alright!

It took 4 days for the part. Porsche was charging $365 just for the part. other shops $265. I got it for $220.

Thanks again, guys! :D

[txhokie4life]

Before you replace the sensor, I would check the wiring to ensure that it is correct. (FWIW, "special tool 9616" is not required for this procedure; it just makes it easier).

1 Check wiring from pressure sensor to DME control module for short to ground.

1. Connect special tool 9616 to wiring harness (DME control module connector).

2. Remove connector of pressure sensor.

3. Connect ohmmeter to special tool 9616, pin 72, and ground. Display: Infinity ohms If 0 - 5 ohms is displayed, check wiring harness for chafing and pinching damage.

2 Check wiring from pressure sensor to DME control module for short to B+.

1. Connect special tool 9616 to wiring harness (DME control module connector).

2. Remove connector of pressure sensor.

3. Connect voltmeter to special tool 9616, pin 72, and ground. Display: 0 V If battery voltage is displayed, check wiring harness for chafing and pinching damage.

Does anyone have specifics how to test the fuel pressure sensor without

the special Porsche tool.

99 Boxster Tip.

Also is this tool cross used on any VW or Audi?

996-606-205-00-M14

thanks,

Mike

[JFP in PA]

Before you replace the sensor, I would check the wiring to ensure that it is correct. (FWIW, "special tool 9616" is not required for this procedure; it just makes it easier).

1 Check wiring from pressure sensor to DME control module for short to ground.

1. Connect special tool 9616 to wiring harness (DME control module connector).

2. Remove connector of pressure sensor.

3. Connect ohmmeter to special tool 9616, pin 72, and ground. Display: Infinity ohms If 0 - 5 ohms is displayed, check wiring harness for chafing and pinching damage.

2 Check wiring from pressure sensor to DME control module for short to B+.

1. Connect special tool 9616 to wiring harness (DME control module connector).

2. Remove connector of pressure sensor.

3. Connect voltmeter to special tool 9616, pin 72, and ground. Display: 0 V If battery voltage is displayed, check wiring harness for chafing and pinching damage.

Does anyone have specifics how to test the fuel pressure sensor without

the special Porsche tool.

99 Boxster Tip.

Also is this tool cross used on any VW or Audi?

996-606-205-00-M14

thanks,

Mike

To my knowledge, the "pin out box" is unique to Porsche because it entirely matches their wiring harness and sensor lay out. Basically, the tool is a box that simply plugs into the wiring harness and then allows you to test various readings (resistance, voltage, continuity, etc.) between numbered pins without having to actually "unearth" and disconnect the sensor you want to test. Makes electrical and sensor diagnostics much quicker, but the tool is a SoB to find and costs over $800.........probably assembled by elves in the Black Forest.......

Edited April 18, 2010 by JFP in PA

[txhokie4life]

Before you replace the sensor, I would check the wiring to ensure that it is correct. (FWIW, "special tool 9616" is not required for this procedure; it just makes it easier).

1 Check wiring from pressure sensor to DME control module for short to ground.

1. Connect special tool 9616 to wiring harness (DME control module connector).

2. Remove connector of pressure sensor.

3. Connect ohmmeter to special tool 9616, pin 72, and ground. Display: Infinity ohms If 0 - 5 ohms is displayed, check wiring harness for chafing and pinching damage.

2 Check wiring from pressure sensor to DME control module for short to B+.

1. Connect special tool 9616 to wiring harness (DME control module connector).

2. Remove connector of pressure sensor.

3. Connect voltmeter to special tool 9616, pin 72, and ground. Display: 0 V If battery voltage is displayed, check wiring harness for chafing and pinching damage.

Does anyone have specifics how to test the fuel pressure sensor without

the special Porsche tool.

99 Boxster Tip.

Also is this tool cross used on any VW or Audi?

996-606-205-00-M14

thanks,

Mike

To my knowledge, the "pin out box" is unique to Porsche because it entirely matches their wiring harness and sensor lay out. Basically, the tool is a box that simply plugs into the wiring harness and then allows you to test various readings (resistance, voltage, continuity, etc.) between numbered pins without having to actually "unearth" and disconnect the sensor you want to test. Makes electrical and sensor diagnostics much quicker, but the tool is a SoB to find and costs over $800.........probably assembled by elves in the Black Forest.......

Good One :-)

I unearthed mine -- may do the usual..... strip it off one of my other Boxster's and see if it solves the problem :-)

I always like it when they change things every so slightly from year to year to thwart my efforts.

Alas, I just didn't have two handy today.

Mike