I am blowing error codes P0442 and P0456, can i fix it myself

Chrysler, Dodge, and Jeep Computer Error Codes - Allpar

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A code P1684 shows that the memory has been cleared recently and is not ... P0122Throttle Position Sensor Circuit Low Voltage; P0123 Throttle Position Sensor ... 2Circuit High Voltage; P0189 Fuel Temperature Sensor 2 Circuit Intermittent ...

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Jun 4, 2010 - 10 posts - ‎4 authors
Sent lots of codes: P1684, P0122, P0118, P0106, P206, P1478, P1598. Can't find anything on the last two, but looks like an electrical prob ...

Dodge Caravan 2003 P1684 P0442 P0455 P0456 - OBD-Codes.com

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Jun 10, 2012 - Your OBD-II Trouble Codes Repair Site. Menu. Home · Trouble Codes... At first it was just the battery code P1684 and the small evap code P0442. Now the other two codes are showing as well. What are the chances that this ...

10127316 WHAT DOES P0122 CODE MEAN? - Download

Here is how you can possibly fix it:
http://youtu.be/iNTcP6D32ww P0441 P0455 P0456 Error Codes Fixed

What code ? P0442 or P0456 or p0455
DTC EVAP P0442 P0455 P0456
EVAP Leaks P0442 and P0455

Wells EVAP Training with Sgt Tech P0440 P0441 P0442 etc

Ok.. the p0328 is in fact a bad knock sensor. I would suggest that someone replaced it incorrectly or the wrong one.. maybe even the wrong part.

p0442 is a small leak in some part of the evap system. Faulty gas cap can cause this but if it was not there before I would suggest the shop knocked something loose or cracked a hose during their repair.

p0456 is a large leak in the same evap system. Likely related to the p0442.

Good luck.

P0456 Is for the EVAP System. Small leak detected, check the seal on your gas cap.

P0422 Is for the Catalytic Convertor efficiency is below threshold. Meaning it isn't doing its job, you may have a bad downstream O2 sensor but more than likely you have a bad Catalytic Convertor.

http://repairpal.com/check-engine-light-with-code-p0442-p0456-andor-p1450-064

po442 evap system small leak po455 evap system large leak po456 evap system very small leak. the evap system is located under the driverside of van. from all indication you have a hole in a line or a bad connection on one of the lines. inspect and repair.

replace your evap solenoid this should fix it.

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

P0442, P0455 AND P0456 are all evaporative leak monitor test failures (small, medium and large leaks). These codes appear anytime the integrity of the air space above the fuel or the lines to/from the vapor canister or purge valve. If there is no damage to the canister, check the lines that run under the van from the fuel tank and canister to the purge valve (under the hood). Also, check to make sure that the hoses are not split or disconnected where they connect to the purge valve. The P1684 is abit more confusing. This is not a valid DTC for your vehicle. It's possible the scanner the shop you went to is an OTC scanner that is reporting a false code. It's also possible they wrote it down incorrectly. The closest thing that makes any sense is a P1486 which would indicate a pinched hose in the same monitor system as the other 3 codes. Best of luck!