Error Code: P0441
Fault Location:
Evaporative Emission (EVAP) System - Incorrect Flow Detected
Possible Cause:
Malfunction Indicator Lamp (MIL) active.
- Purge control VSV connector disconnected.
- Evaporative Emission (EVAP) Canister Purge Regulator Valve is faulty/jammed.
- Evaporative Emission (EVAP) Canister Purge Solenoid Valve faulty/jammed.
- Evaporative Emission (EVAP) Canister Sealing faulty.
- Pipes between Tank Breathing and Throttle Body leaky/blocked.
- Hose connection(s).
- Intake leak.
Solutions:
- Check Evaporative Emission (EVAP) Canister Purge Regulator Valve.
- Perform Output Test.
- Check Evaporative Emission (EVAP) Canister Purge Solenoid Valve.
- Check Evaporative Emission (EVAP) Canister.
- Perform Basic Setting.
- Check Pipes between Tank Breathing and Throttle Body.
SOURCE: P0441 EVAP Control System Incorrect Purge Flow
Test the purge valve and the vent valve for leaks. This can only be done with a Tech 2 and or a vacuum pump.
SOURCE: the service engen soon light
Code P1870 is a transmission code for excessive slipage. this can be caused by allot things inside the transmission. clutch wear, seals worn out. some checking will be required. the first thing to do, is have the vehicle driven with a scan tool that reads real time data. just a code reader. this will pinpoint the problem to the inside of the tranmission. in some cases just a replacement valve body inside the trans will correct this code. another way you can handle this, drop the transmsission pan down, if there is allot of debris in the body of the pan, then you can pretty much count on a complete overhaul of transmission
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This video can give you some insight on the problem you are describing
https://youtu.be/Dl9Bi_kuWkY
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