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Re: chech engine light
Evaporative Emission Control System Pressure Sensor Low Input indicates a low voltage problem in the Fuel Tank Pressure Sensor (FTPS). What the fuel FTP sensor does is convert fuel tank absolute pressure into electrical signals and inputs the signal to the ECM/PCM, (Computer).
First thing to do is make sure the gas cap is good and tightened properly. Then check the vacuum lines and wiring at the FTPS (Location-Fuel Tank) to be sure they are good, clean and tight.
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I was getting the same and found out I got some bad gas.
The computer could not understand so 2 tanks later till running badly and giving 460+134 codes... Ran till empty - got best gas I could find ** -> the KEY **-> Unplugged the battery for a full 20 minutes, checked every wire for grounding issue (none really found) --- everything is great now.
Mileage went down for that tank but then came back to normal.
Once the on board computer has found a problem with the engine. It will store the problem in the computers memory as a ( Diagnostic Trouble Code ) and set the check engine Light. The computer will command the check engine light to come on and stay on at this point untill all repairs are made to the Spacific Diagnostic Trouble Codes. It will retract the check engine light to the off possition once the repairs have been made and the repairs were done correctly, and the codes half to be cleared from the computers memory after repairs are finished. Good Luck and have a good XMASS.
You should have 3 grounds 1 from the battery to the engine one from the engine to the body and then from the engine to the frame. Look for these grounds they look like braided flat wire. I think you also may have a loose plug or a cut in the main harness from the rear of the vehicle. Look along the frame as the harness runs from back to front. Looking at your codes I do not think they are related to your electrical problem. I gave up trying to fix my gear indicator, I had to replace the fuel tank sensor to get my gas gage working right.
EVAP fuel tank pressure sensor low output. It sounds like the charcoal -filled canister, it's near the gas tank in a cylinder shape.The canister may have cracks or a hose is leaking around the area and it will give a fault code of PO452. Are you smelling any odors or emission smell from the car?
po300 random misfire it needs a tune up..plugs and wires, air and fuel filter........po452 fuel pressure sensor or the fuel level sensor..The fuel pressure sensor is located on top of the fuel pump module.Hope this help...pls rate
These codes are for the fuel system the system performs a pressure test when the vehicle reaches a certain speed for a certain period of time, predetermined from the factory. The Gas cap is the most likely suspect. Disconnecting battery will reset (and delete) all error codes and clear the check engine light, VSC, etc. idiot lights on the dash.
Post further comments if further you have the same problem....
you might try unhooking the battiey for 20min both + and - posties cuz that will force the computor to have to resest only if you have addressied the fuel pressure problem which taht would most likly be your filter which isn't all that much