Oil Pressure looks okay to me too.
Have you been able to check for any stored codes? Might point in a direction of the problem.
The other easy things to check with this being an intermittent problem is the connections to:
1. VCT solenoids
2. Cam position sensors
3. Crank position sensor
4. MAF sensor
5. Coil packs
6. Injectors
7. Fuel pressure sensor
8. Throttle body
I'd pull the plug off each sensor / injector / coil and spray both ends with electrical contact cleaner, blow them out with compressed air and reconnect. The crank position sensor in particular is prone to oil seepage.
You can also pull out the MAF itself and spray the electrical contact cleaner through the slots to clean off an oil and debris from the filament / heater wire inside. Be gentle with this though. No compressed air, just blow on it to dry.
I also noticed your first post said you deleted the charge motion plates... If this was recent, or close to when this problem started... Have you checked for a vacuum leak? Maybe a gasket got torn or pulled out if its groove when the intake manifold was reinstalled. Spray some starting fluid or carb cleaner in the area where each intake runner meets the cylinder head to see if the idle changes. If idle speed goes up when you spray it you have a vacuum leak.
If these things do not do the trick you might need to pull the valve covers and make sure the reluctor on the front of the cam phaser gear is still attached and / or not loose, and the coiled spring between the reluctor and phaser is not broken.
After all of the above you might be into checking all the timing components... Pulling the front cover and checking: Timing Chain tensioners, VCT valve bodies and gaskets, cam phasers, crank reluctor wheel, etc.
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Have you been able to check for any stored codes? Might point in a direction of the problem.
The other easy things to check with this being an intermittent problem is the connections to:
1. VCT solenoids
2. Cam position sensors
3. Crank position sensor
4. MAF sensor
5. Coil packs
6. Injectors
7. Fuel pressure sensor
8. Throttle body
I'd pull the plug off each sensor / injector / coil and spray both ends with electrical contact cleaner, blow them out with compressed air and reconnect. The crank position sensor in particular is prone to oil seepage.
You can also pull out the MAF itself and spray the electrical contact cleaner through the slots to clean off an oil and debris from the filament / heater wire inside. Be gentle with this though. No compressed air, just blow on it to dry.
I also noticed your first post said you deleted the charge motion plates... If this was recent, or close to when this problem started... Have you checked for a vacuum leak? Maybe a gasket got torn or pulled out if its groove when the intake manifold was reinstalled. Spray some starting fluid or carb cleaner in the area where each intake runner meets the cylinder head to see if the idle changes. If idle speed goes up when you spray it you have a vacuum leak.
If these things do not do the trick you might need to pull the valve covers and make sure the reluctor on the front of the cam phaser gear is still attached and / or not loose, and the coiled spring between the reluctor and phaser is not broken.
After all of the above you might be into checking all the timing components... Pulling the front cover and checking: Timing Chain tensioners, VCT valve bodies and gaskets, cam phasers, crank reluctor wheel, etc.
Sent from my SM-G965U using Tapatalk
