P0455 code + idling high
Thread Starter
Racer
Joined: Nov 2011
Posts: 414
Likes: 2
From: Ridgeland MS
P0455 code + idling high
Had my sensor in my pedal go out, ordered a new pedal and fixed that problem. While I was troubleshooting, I took the TB off and cleaned it, now it's idling high (around 1-1.1k) then when it sits still it'll come down to normal. Code says it's an evap emission leak, would that be causing it to idle high? Most people say it's a gas cap issue, if that's the case it shouldn't be idling high right?
Team Owner
Joined: Sep 2005
Posts: 20,352
Likes: 568
From: Ventura County, Calif
Don't recall seeing that one before but could have missed one.
Anyway here's a search for general info. It is Chev but not Corvette specific, should give a starting point though:
http://engine-codes.com/p0455_chevrolet.html
Anyway here's a search for general info. It is Chev but not Corvette specific, should give a starting point though:
http://engine-codes.com/p0455_chevrolet.html
Melting Slicks
Joined: Oct 2010
Posts: 2,220
Likes: 16
From: Sugarhill Ga
an evap leak will not affect the idle. cleaning the t-body will. if you drive the car in traffic for 15-30 minutes it will recalibrate. some just let the engine idle and that works also.
now if you bumped any of the plastic lines than run over the front of the intake it can give you and evap leak code. make sure those are not damaged.
now if you bumped any of the plastic lines than run over the front of the intake it can give you and evap leak code. make sure those are not damaged.
Melting Slicks
Joined: Oct 2010
Posts: 2,220
Likes: 16
From: Sugarhill Ga
