Fuel Pressure Sensor

[Viper5]

I know where the DME is. Can somebody tell me how to check for continuity where the sockets are and the sensor is?

I can't locate wires that have the same colors because they are all jumbled together and there are hundreds of them. I'm looking for the light blue, light pink, and dark pink ones but it's practically impossible to find.

[Viper5]

new sensor fixed problem

[Viper5]

Back in June 2010 is when this issue first caused the CEL. Yesterday it popped back up again and it is reporting this dreaded P0453 once more. Argh. Considering I just replaced the darn thing 6mo ago, what could be the problem here? It seems like this part isn't ever really supposed to go bad so I can't see how in 6 mo time it did. Granted it wasn't a new install, but it lasted this long so it must had been installed correctly. I drive my boxster once or twice a week.

[Dale_K]

I don't know the answer to your problem but I bought a Durametric unit while trying to figure out a totally different problem on my car and I recall the Durametric will read the pressure value of the tank. I bring this up only because the Durametric helped me diagnose my problem and maybe it would help you too.

Basically it seems like you could have either a mechanical issue (leak in the vent system, bad sensor) or an electrical problem (chafed wire, short, etc). Since replacing the sensor fixed the problem for a while you'd think if it was the wiring the problem must be near the sensor.

If it was me I'd hook up a Durametric and watch the values while wiggling the wires. Take all this with a grain of salt because I'm not an expert by any means. And the Durametric costs $300, which might be going overboard with the technology.

[Viper5]

I already have durametric but I didn't know it reported those values. Will try and see what happens. Does it provide acceptable range too?

[Dale_K]

Originally Posted by Viper5

I already have durametric but I didn't know it reported those values. Will try and see what happens. Does it provide acceptable range too?

I'm sending you a PM.