Oil light coming on we add oil when it shows its full light goes out than it comes back on in about a week

What weight of oil did you have put in the engine?

It's possible that when the engine is at idle RPM it may not produce enough pressure causing the oil pressure sender to activate the light. Does it do this when you just sit and idle the motor? You may also have a oil sender that may need to be replaced.

on dodge motors
fitted a lot of parts and still no better

the fault code clears and comes back as a intermittent problem

could be electrical voltage drop off or heat related failure

i wonder if your 02 sensor ,the catalytic converter
or other related sensors
are causing the fault to come back
if needed .....fit a new air filter...

how the test is determined

P1294-TARGET IDLE NOT REACHED 3.3L/3.8L
When Monitored and Set Condition:
P1294-TARGET IDLE NOT REACHED 3.3L/3.8L
When Monitored: With the engine idling and the transmission in drive, if automatic.
There must not be a MAP sensor trouble code or a Throttle Position Sensor trouble code.
Set Condition: The engine idle is not within 200 rpm above or 100 rpm below the target
idle for 40 seconds. One trip fault.

POSSIBLE CAUSES
INTERMITTENT CONDITION
IAC MOTOR PASSAGES
VACUUM LEAKS
AIR INDUCTION SYSTEM
THROTTLE BODY AND THROTTLE LINKAGE
TEST ACTION APPLICABILITY

The after market cat is the likely problem. Catalytic converters are not all the same and over time our shop has learned which aftermarket ones will work and which ones will not.

The computer is looking at the downstream O2 sensor (the one after the cat) to determine cat efficiency. If the downstream O2 sensor is switching simular to the upstream O2 sensor (the one before the cat) than the computer interprets this as a bad cat. The rear O2 sensor should hold a steady voltage at idle once the car is warmed up.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

All automatic ZX2's have a rough idle in gear. Ford even put out a TSB and tried to fix it with no success. The engine is internally balanced and does not have a harmonic dampener. This means you get all of the engine vibration transferred to the frame. I own three ZX2's, my sister has one, my friend has two, they all have rough idle in drive.

The noise you get from the oil filler is normal to an extent. It is an overhead cam engine so you will hear noise from the oil filler. The oil you see on the spark plugs is likely from the valve cover gasket. That is the only place the oil can come from and get onto the top of the spark plugs. It can't travel through the spark plug threads and get on top from the combustion chamber.

It is good you replaced the PCV valve (I know it is hard to reach) but did you replace the breather? There is a round black box with a hose coming from the intake that goes onto the top of the valve cover. This is the air inlet for the PCV and if it gets clogged it will allow pressure to build up in the crank case.

change oil pressure switch it' should be near the oil filter

these O2 sensors are cat convertor check sensors. id be checking cat convertors and hopefully you should try replacing if not all ready is the front bank 2, O2 sensor
if you have scanner can you see fuel trims in data display to confirm high fuel trim only on bank 2 either +-5 or more indicates problem and if bank 2 sensor 2 has fixed high 700mv reading cat no good(warm idling)

the exhaust may have a blockage in it....maybe the cat converter....motors don't have power unless they can get rid of the exhaust.....

I had the same problem with my 2003 Lancer OZ. The oil level and pressure were ok. Car was fine with no light when starting. After 10 to 15 mins of driving it would come on when I was stopped. It would go away when I pressed accelerator. Try replacing the Oil Sending Unit. It's about $10 and easy to swap. That was my problem.