Question about Volvo S80
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Posted on Jan 02, 2017
SOURCE: code P0456,P0455, &P0442
hello po442 ,po455,po456 is leak detected possible, check the gas cap , basicaly you have a leak that is larger than 0.020' and smaller than 0.040' in the gas evaporative system use your nose to find this one thanks
Posted on Feb 14, 2009
The first two were not listed in the file that I have, the third has to do with evaporative emission control has a small leak. The first two seem to be other codes having to do with the same area. Check the hoses and fittings at the fuel tank area for leaking or damage for the vent system. Check the fuel entry to tank hose and fittings. Locate (underneath the body) and check the charcoal canister for cracked case, loose or damaged fittings. Clear the light with the scanner and see if other codes show up. Are there any obvious problems other than fuel vapor leaks?
Posted on Aug 22, 2009
This code is normally caused by a loose gas cap or a bad EGR valve. It is the code for the evap system on your truck. You can go to autozone and they will clear the code for you if you can not do it yourself. You may need to replace the gas cap and or the EGR valve if the code comes back up, these are normally one time things due to the cap not being fully tightened.
Posted on Nov 04, 2009
P0420 is Catalyst System Efficiency Below Threshold - Bank 1
P0456 is EVAP Control System Very Small Leak (Negative Pressure Check)
Posted on Nov 22, 2009
Small leak in Evaporative emission system. Could be as simple as a bad seal at gas cap, or maybe wasn't put back on tight,especially if you noticed it shortly after getting gas. Otherwise check all vacuum lines for snug connections, and examine for cracks as well.
Posted on Apr 09, 2010
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