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Hr oil pump failure?

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Old 07-16-2015, 06:06 AM
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pss350z
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Originally Posted by pss350z
15-17 AFR is not super rich, 14.7 is ideal burn so anything above that is considered rich. 17 sounds quite high for a car that isn't tuned for outright fuel economy.
Shiit, somehow i said rich when i meant to say LEAN, sorry.... Anything above 14.7 is LEAN.
Old 07-16-2015, 08:27 AM
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illphildawg21
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Originally Posted by rancor
17:1 is extremely lean not rich
oops, you're right. so theres an issue with that and oil pressure. any ideas?
Old 07-16-2015, 08:28 AM
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Originally Posted by pss350z
Shiit, somehow i said rich when i meant to say LEAN, sorry.... Anything above 14.7 is LEAN.
i'm an idiot and had everything backwards, oops. but there's and issue with that and the oil pressure any ideas?
Old 07-17-2015, 06:52 AM
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Originally Posted by illphildawg21
oops, you're right. so theres an issue with that and oil pressure. any ideas?
No great ideas, if you haven't already it might be a good idea to check the oil pressure with an external gauge. The sending units generally fail railed high or low but it could be good to check and easy but probably not the case. I am thinking you next steps might be to pull the oil pan and look at the pickup and make sure it isn't clogged, then look at the pump. This is all assuming you still don't have any external leaks.
Old 07-17-2015, 06:53 AM
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Not sure if you got a tune with your test pipes, exhaust and intake but that could be the cause of your lean issue, the lack of one that is. The oil problem is beyond me, sorry but im pretty useless lol.
Old 07-29-2015, 09:13 AM
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Originally Posted by pss350z
Not sure if you got a tune with your test pipes, exhaust and intake but that could be the cause of your lean issue, the lack of one that is. The oil problem is beyond me, sorry but im pretty useless lol.


This vacuum line was not hooked up correctly. Apparently the previous owner had capped off where it was supposed to run from the valve cover to the hose between intake pipes. It caused my oil pressure to be extremely low, so that problem is solved. As for how lean my car is running, I think it's because my new exhaust is a true duel and the sensor for the wideband is only reading 1 bank, have to figure something out there. It almost feels like the car is loading up under cruising conditions, once you start running it hard again it clears up and runs perfect. It even smells like its running rich. I'm going to see if i can get the issue tuned out in December. Until then i'm going to go through all my sensors and see if one if burnt out or not functioning properly.
Old 07-29-2015, 09:13 AM
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sorry about the double picture!
Old 07-29-2015, 04:47 PM
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just ran the codes again after i fixed my exhaust leak and i still have a misfire in cylinder 1 (p0301) and an advance timing code in bank 2 (p0021) any ideas?
Old 07-29-2015, 05:03 PM
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Originally Posted by illphildawg21





This vacuum line was not hooked up correctly. Apparently the previous owner had capped off where it was supposed to run from the valve cover to the hose between intake pipes. It caused my oil pressure to be extremely low, so that problem is solved. As for how lean my car is running, I think it's because my new exhaust is a true duel and the sensor for the wideband is only reading 1 bank, have to figure something out there. It almost feels like the car is loading up under cruising conditions, once you start running it hard again it clears up and runs perfect. It even smells like its running rich. I'm going to see if i can get the issue tuned out in December. Until then i'm going to go through all my sensors and see if one if burnt out or not functioning properly.
My HR doesnt have this hose hooked up and my oil pressure is normal
Old 07-30-2015, 07:10 AM
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Originally Posted by nizmo_0385
My HR doesnt have this hose hooked up and my oil pressure is normal
well the breather for the valve cover was actually capped on mine rather than vented so from what I understand it was working against the oil pressure once the car got warm. It caused the gaskets inside the front timing cover to blow.
Old 07-30-2015, 11:38 AM
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Originally Posted by illphildawg21
well the breather for the valve cover was actually capped on mine rather than vented so from what I understand it was working against the oil pressure once the car got warm. It caused the gaskets inside the front timing cover to blow.
Gotcha i can definitely see that being issue. I left too left the valve cover hose connect but removed the intake hose
Old 07-31-2015, 07:29 AM
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Originally Posted by nizmo_0385
Gotcha i can definitely see that being issue. I left too left the valve cover hose connect but removed the intake hose
yeah, make's sense, it's wild such a small set of hoses can cause such big problems. I'm still getting a p0021 code so I think I'm going to change the camshaft position sensor for bank 2, see if that will solve it.
Old 08-02-2015, 12:38 PM
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Originally Posted by illphildawg21
Is it common for the oil pump to fail in the hr's or has anyone else had theirs fail? That's my last step in trying to solve my oil starvation issues before I just cut my losses and get rid of my car. At this point I have; changed my oil pressure sensor (twice), moved to 5w40 oil and changed the two internal gaskets inside the front timing cover notorious for leaking oil pressure on the hr's. Now I have a dry lifter, I have not been operating the car with this oil starvation issue. Any suggestions would be great, the car hasn't even broken 60k miles. I have no upgrades beyond test pipes, exhaust and intake.
my oil pressure is high. in 6th gear at 2k r.p.m. im hitting 90 psi and 110-120 on start up alone. and idle at 30psi. so i might be kinda same boat. Ive changed the sensor and sending module along with the oil since ive seen the dealership use higher weight in the summer (dumb ****s) so im def subbing to this post.
Old 08-03-2015, 07:46 AM
  #34  
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Originally Posted by cincysilvias14
my oil pressure is high. in 6th gear at 2k r.p.m. im hitting 90 psi and 110-120 on start up alone. and idle at 30psi. so i might be kinda same boat. Ive changed the sensor and sending module along with the oil since ive seen the dealership use higher weight in the summer (dumb ****s) so im def subbing to this post.
From what i understand 90-110 on cold start is normal, but at 2k rpm's in 6th is bad news bears if the car is already hot. I'm really at a loss when it comes to high oil pressure.
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