Code P0441 could mean one or more of the following has happened:
code 452 is evap system- Could be lose gas cap. If you have got gas recently reset code make sure gas cap clicks. ALSO IN THE FUTURE GIVE US YEAR AND MAKE OF VEHICLE THIS HELPS US NARROW DOWN THING.
SOURCE: check engine light on
P0700 - Transmission Control System Malfunction, this is a transmission or PCM issue and needs further diagnosis with other test gear.
The P1684 code simply means that the battery has been disconneted within the last 50 engine starts.
SOURCE: '99 olds 88 diagnosed PO 446 evap vent control problem
Your code means:
P0446
EVAP Canister Purge Vent Blocked
Some of the possible causes:
EVAP vent fresh air hose is clogged, kinked or restricted
EVAP Vent solenoid is contaminated, damaged or has failed
FTP sensor is out-of-calibration, damaged or "skewed"
PCM has failed
All tough thing for a lay person to check. You don't have to take it to the dealer, any repair garage that has the proper equipment can fix this for you.
SOURCE: Check engine light came on. Had diagnosed and
Start with the throttle sensor on the gas pedal, check with voltmeter one wire should have 5.0 volts one of the other should get more voltage as you press the gas pedal.
SOURCE: check engine light diagnosis shows PO 171 and PO 174
The system is too lean,this ,most of the time means that the fuel pump pressure is not enough,the fuel pump is going out,but change the fuel filter to see if it is the problem,if the fuel filter does not help,replace the fuel pump.
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