Rough idle light flickering no oil pressure

[Josinglton73]

Hi all
In have a 04 3.7 V6 got it new had no problems with it till this past spring.
It started with a miss fire.
So replaces the plugs and the packs. Still ran rough.
A code for the map or MAF sensor showed
That the engine is getting to much fuel not enough oxygen.
Replaces the O2 and Map /MAF sensor
Still running rough, now lights are flickering and all of a sudden no oil pressure. Oil is in good range on the dip stick.
Any clue to what is going on?

 

[Tulecreeper]

You should post this on the Gen 3 forum.

 

[18CrewDually]

#1 rule for diagnostics and repairs for drivability concerns.
SCAN for CODES. Post results.

 

[Josinglton73]

It shows P0175
That is the only code

 

[18CrewDually]

Are you sure there's still not a misfire code? I'd check codes again. For now check:
Is air cleaner new and no blockage?
Check for vacuum leaks around the intake manifold.
Could have a bad injector but you need a way to monitor fuel trims and O2 sensor readings.
The flickering oil light is more than likely because it's misfiring multiple cylinders so it is well below idle rpm.

 

[Josinglton73]

The air filter is not that old is pretty clean.
It was giving a misfire and it stoped and started up agin (forgot to mention) why I changed the plugs and ignition boots.
I’ll check the manifold.

 

[Dodge 1500 4X4]

How many miles on it, find the oil pressure sending unit and install a mechanical oil pressure gage to get a true reading, you may have a stuck fuel injector, is the oil diluted down W gas or have a higher level, don't run it like that, don't load the parts cannon up any more before testing!!!

 

[jws123]

if your chasing a missfire issue pop the valve covers these engines throw rockers when they sludge up take a look at the timing guides while your there these engines need a timing kit around 130k.

 

[Josinglton73]

The truck has 218,381 miles on it
The oil is not diluted maybe a fraction over the fill line
When the motor gets close to operating temp do I loose pressure it may go back up the. Back down
Been trying to get the old gas out as well