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P0452 Tank Pressure Sensor - Short to Ground

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: infinite ohms

If 0 - 5 ohms is displayed, check wiring harness for chafing and pinching damage.

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P0452 Tank Pressure Sensor - Short to Ground

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: infinite ohms

If 0 - 5 ohms is displayed, check wiring harness for chafing and pinching damage.

Dangit! Looks like me has to go through the wiring harness on this one:(

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Before I went to that much trouble I would clear it and see if it comes back. ;)

You know me.. I just looooooove to rip things apart anyways:)

Loren you are so bloody right man. I love no PSM, no E gas... 2930 pounds and we haven't even stripped her down!!!

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Hehehe... GT3 Cup Car chassis... just add GT3 brakes, coilovers and few more horses...

That's the direction:)

Bloody light came on again... Of course noboyd has seen "this" one before.... Not even sure what "tank" they are referring too here lol. The PST2 and the manuals don't really say much about this one;(

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  • 11 months later...

Alex, guess we are partners in crime... my 99 C2 also has this code but with the description of "tank pressure sensor/below limit". Can you tell me where physically this sensor is so I can look at swapping it out. Also, do you think this would be related to the fact that I can't seem to fill up my gas tank more than 7/8 full at gas stations?

By the way, the front brakes worked out great! Although I needed to go to a 8mm spacer to fit the wheels back on! ;)

David

Just as an FYI guys...

It's apparently the Fuel Tank according to Brian Haske @ Carlsen

"Christian said the sensor is off the tank, by the sending unit"

Easy enough to fix:)

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