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-   -   Gas cap p0450 (http://986forum.com/forums/boxster-general-discussions/23465-gas-cap-p0450.html)

Taz 01-26-2010 03:23 PM
Gas cap p0450
 
Hi I changed my gas cap and got a cel p0450 never had this before anyone know about this

Jaak 01-26-2010 03:48 PM
Quote:
Originally Posted by Taz
Hi I changed my gas cap and got a cel p0450 never had this before anyone know about this

DTC definitions: PO450: Evaporative Emission Control System Pressure Sensor Malfunction .

Bad gas cap?

Taz 01-26-2010 04:09 PM
Never had it before.I just picked up a locking non venting cap put it on and got code.

Taz 01-26-2010 05:26 PM
When the old cap is on I can't hear the air come out when undoing.with new cap I hear the air come out but get the code p0450. Does this have to do with the other codes that I get. P1128 p1130

Jaak 01-26-2010 05:41 PM
Sorry, I don't have those codes available. Try here ---> Manuals

JFP in PA 01-26-2010 07:19 PM
Quote:
Originally Posted by Taz
Hi I changed my gas cap and got a cel p0450 never had this before anyone know about this

Yes, common issue with aftermarket locking gas caps, the cars don't like them. We've tried Stant and other brands, but about 8 out of ten throw the code right away, the rest do it after a few starts. Put a nice new Porsche gas cap on and the problem (after you clear the code) will not return.

We eventually gave up on locking gas caps; the car's EVAP system is too sensitive…………….

Lobo1186 01-26-2010 07:24 PM
if you cant clear the code it will go away after a few tanks. once the evap system does a few cycles.

Taz 01-27-2010 05:15 AM
Thanks I ordered one from Porsche.I have the comp to clear the codes

kotto 06-21-2012 10:01 PM
Quote:
Originally Posted by JFP in PA (Post 203304)
Yes, common issue with aftermarket locking gas cap, the cars don't like them. We've tried Stant and other brands, but about 8 out of ten throw the code right away, the rest do it after a few starts. Put a nice new Porsche gas cap on and the problem (after you clear the code) will not return.

We eventually gave up on locking gas caps; the car's EVAP system is too sensitive…………….
Bump. ^ True. Learned that the hard way. While the topic is about locking gas cap, what do you think of last year's sales of gas cap. Here's a blog I saw on the net but it was 4 years ago:
Sale of locking gas caps triples in 2008

bar10dah 06-22-2012 04:32 AM
Since our fuel filler doors lock, why buy a locking gas cap?

Kenny Boxster 06-25-2012 06:27 PM
Quote:
Originally Posted by bar10dah (Post 295044)
Since our fuel filler doors lock, why buy a locking gas cap?
Aye! So why does one buy a locking one? One can never be too safe?:o


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