I'd try replacing the whole pump, solenoid and all.

 

Yeh I guess brand new pump is bad, less than 5 min of run time. Faulty pump from shop. The only think could be funny causing it 5w-20 5 quarts and 1 quart of Lucas making it to thick.

 

Not likely for for Lucas Synthetic Oil Stabilizer to be the cause, very cold temperatures do the same thing (increase viscosity).

If it's the really thick regular Lucas, I still think that's a long shot for a root cause; but you could try dumping in a can of Seafoam or Marvel Mystery Oil to counter the Lucas and bring the viscosity down -- Or better yet, just quickly change the oil out with something cheap. But you're only seeing 39 psi, and if high viscosity was the problem, I'd think the pressure would be much higher.

On a related note: Suggest just using a higher viscosity oil (5w-30, 0w-40, etc) rather than adding Lucas. Lucas is just thick oil, and all it does is increase viscosity. But it also dilutes the additive package of the base oil plus the total cost is more than just getting the desired viscosity in the first place. I always have some Lucas around for testing purposes (to quickly increase viscosity), but that's about it. To calculate how much X percent of Lucas changes viscosity, look up the viscosity specs for the base oil and the Lucas oil, then do a web search for Widman Viscosity Calculator. As a quick guess, I'd say your after about 5w-30.

 

Well unfortunately you will need a real time scanner system that can read parameters as you drive or are standing still. With say HPTuners you can setup a bunch of parameters you want to see EG the command to the solenoid and the actual oil pressure readings instantly. Hard to simply diagnose modern engines by someone saying they had a certain code and did XXX and it got fixed. Also what shop did the rebuild and what did the rebuild consist of? Some people think replacing rings and bearings constitutes a recondition. Oil galleries could have had crap in them from machining as well that makes a relief valve stay partially open - could be a hundred things. Diagnose using the correct tools then you know what to fix.

 

Thar snap on works pretty good, it’s shoes live data if it would run more thar 30 secounds without giving any throttle. That because c t and all isn’t working right without pressure of enough. It’s just odd code to me. Never delt with a dual stage oil pump. Being stuck when all is brand new. But yes very well could be some trash that got in there.

only easy way besides scanner showing oil pressure I’m going to check it from the cap with one those oil filter adapter caps for the pentstar to check mechanically. Then I’ve found the solenoid should have about 7ohm resistance I need to check that.

not sure what I could look for on live data scanner like hp tuners that the legend doesn’t show.. open for advise not trying so like a a$..

I command the sensor on it clicks but it won’t run once the code is triggered.

It’s a reputable shop. Complete overhaul rebuild. Rockers, lifters, head redone. Gaskets. Pistons, rings, .30 over. Bearings etc. freeze plugs all the works was done. Timing chain, oil pump etc. cam phasers, $3200 bucks worth.

Then I dressed it and installed. Timing covers, oil pan, valve cover etc.

pvc, coils, plugs, radiator, hoses, water pump, timing cover, thermostat housing, oil filter housing. etc all the good stuff.

Would qoute was running fine just had 156k on it and oil cooler burst pushing coolant out and she got hot so feared head gasket to just yanked and had it rebuilt.

 

kinda down to Just diagnose the oil pump stuck closed code. Narrows down to pump, harness, solenoid, or worse I’d assume could be internal if new pump or solenoid doesn’t fix it.

But it should be making more oil pressure.. is it making??… and sensor not seeing it or is it really not making it. Or is the solenoid just faulty on new pump not allowing it to go into high pressure mode at start up or above 3500rpm. That’s what I’m trying to narrow down.

2nd pressure sensor doubtfull, actual oil pump …ehh prob not… that stupid solenoid could be.

But manual psi gauge will rule out the actual psi.