A defective aspirator valve would unlikely cause a misfire monitor failure. It would more likely cause an air system monitor failure
misfire,monitor,malfunction
P1309 Misfire Monitor Disabled
The monitor station
Trouble code P1309 means: Misfire Monitor Hardware - CMP Misaligned, CKP/CMP Noise, PCM AICE Chip
My Chilton repair manual shows OBD II code P0304 as ( misfire detection monitor and / or circuit fault ) and my Haynes repair manual shows OBD II code P0304 as ( cylinder no. 4 misfire detected )
The crankshaft and camshaft sensors monitor engine speed. When the sensors detect a change in speed, they attribute it to a misfire. Depending on the cylinder that was supposed to fire, the engine can determine when the change in speed took place and can single out a particular cylinder. When it happens with more than one cylinder, it becomes a mulit cyl misfire. This is one of the symptoms of a malfunctioning cam or crank sensor.
A few normal issues are Faulty connections in the hige housing causing shorting out Video card failure Video software failing or out of date Incorrect monitor settings
Air bag code " 24 " - System Disarm Failure or Internal Diagnostic Monitor Fault
Cable Failure Corrupt Driver Check Power Switch Shot Displays(worst case scenario) Nothing else I can think of......
Current technology LCD monitors have far fewer components subject to failure than older CRT technology. anonymous@oola.com
This may indicate a problem. It could be software and require re-installation of the application you are using, your video drivers, or your operating system. It could also be a sign of a loose cable, or loose installation of the videocard. It can also indicate failure of the monitor, videocard, or other internal component. In some cases, it may also be some sort of special feature of your monitor. Check your monitor's documentation to see.
Definition: Catalyst efficiency low- bank 1 Explaination: The oxygen sensors monitor the catalytic converters ability to store oxygen. Probable causes: 1. Catalytic converter defective (failure possibly due to #2, 3 or 4) 2. Engine misfire or poor running condition 3. Large vacuum leak 4. Engine oil leakage into exhaust- valve guide seals, piston rings