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2010 Camry PZEV vs ULEV Engines interchangeable? #5279638 11/28/19 10:14 AM
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diyjake Offline OP
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My Aunt's engine is shot on her 2010 Toyota Camry 2.5L that we need to replace. I've found a few used engines with low miles that we would like to get. The issue is Camry shows two different listings for the same engine code (2ARFE) PZEV and ULEV and my question is the engine interchangeable? Her car is ULEV and the replacement engine we are looking at is PZEV. My guess the only difference is the exhaust manifold which we will be using the original one on the car anyways.

Anyone have any experience with something like this?

Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5279650 11/28/19 10:32 AM
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kschachn Offline
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How is it "shot" exactly? What was done to it (or not done to it) to cause this?


1994 BMW 530i, 251K
1996 Honda Accord, 280K
1999 Toyota Sienna, 428K
2000 Toyota ECHO, 284K
Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5279669 11/28/19 10:54 AM
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diyjake Offline OP
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She bought the car used and shortly after that It started to make terrible noise and has metal shavings inside the engine, looks like someone run it without oil. The cost to rebuild is way too expensive.

Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5279682 11/28/19 11:03 AM
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dareo Online Content
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Sorry to hear the bitog goldenboy Camry has let you down. Maybe a JDM imported engine can work at a good price.


2018 Regal TourX, 2016 Golf Wagon 5MT, 2016 GMC 1500 SLT 6.2
Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5279684 11/28/19 11:04 AM
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diyjake Offline OP
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Car is showing codes PO012 and PO015

I found a used engine with 71K miles for $550 but its from a PZEV Camry and hers is a ULEV which is way I posted my question if it will work.

Last edited by diyjake; 11/28/19 11:06 AM.
Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5279686 11/28/19 11:07 AM
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dareo Online Content
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Im not certain but it used to work that you could take the longblock from japan or wherever and put all the donor sensors and manifolds on and your set.


2018 Regal TourX, 2016 Golf Wagon 5MT, 2016 GMC 1500 SLT 6.2
Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: dareo] #5279718 11/28/19 11:39 AM
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kschachn Offline
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Originally Posted by dareo
Sorry to hear the bitog goldenboy Camry has let you down. Maybe a JDM imported engine can work at a good price.

Sounds like the seller let her down, not the vehicle.

Sorry people sell cars like that.


1994 BMW 530i, 251K
1996 Honda Accord, 280K
1999 Toyota Sienna, 428K
2000 Toyota ECHO, 284K
Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5279739 11/28/19 11:56 AM
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csandste Offline
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Doesn't car-part.com screen parts to make sure they fit your car?


2017 Kia Soul Plus-- VWB 5w30+ a bit of Harvest King syn 5w30-- 70,000 miles
Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5279745 11/28/19 12:09 PM
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It will matter depending on your state and emission testing. According to Lexus-ULEV: Ultra-Low Emission Vehicles. ULEVs are cleaner than LEV certified vehicles. ... PZEV: Partial Zero Emission Vehicle. PZEVs meet SULEV tailpipe emission standards, have zero evaporative emissions and a 15-year/150,000 mile warranty.
So the short of it is if you have the pzev motor by epa rules and emissions compliance you cant use the ulev engine.
I used to be a state licensed emission Inspector


If at first you don't succeed fail fail again. (Waldorf and Statler.)
1997 Geo Prizm...DEAD
1984 Mazda RX-7 Spec 7
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Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5279796 11/28/19 01:42 PM
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diyjake Offline OP
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So if I go from ULEV to PZEV than I should be ok? either way I think it should work because the actually motor should be the same, only thing different is probably the exhaust system or am I misunderstanding something?

What makes the difference between ULEV and PZEV the exhaust system, engine computer or something is actually different in the engine?

Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5279914 11/28/19 05:20 PM
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You'll be fine. There's nothing different about the engine, it's all in calibration and the addition of a cat-monitoring O2. The computer has no idea if it's a PZEV or ULEV engine, because they're the same. It's just looking for different sensors to more closely monitor emissions.

Get whatever is cheap and swap your existing parts.


2013 Chevrolet Volt - Saves enough in fuel to pay for itself!

2007 Chevrolet Impala LT
Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5280219 11/29/19 08:15 AM
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diyjake Offline OP
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This is so confusing with this emissions crap, I called one junk yard and he said the head is different on the PZEV vs the ULEV which doesn’t sound right at all.

Last edited by diyjake; 11/29/19 08:18 AM.
Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5280960 11/30/19 09:18 AM
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supton Offline
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Is PZEV vs ULEV a CA vs Federal emissions thing too? Just wondering if there isn't a complication with CA vs Fed parts also.

Junkyard guy could be wrong too. Have you ponied up for a service manual, or subscribed online to (Alldata? Techstream? I believe you have options and don't have to subscribe for a long period)? I am thinking it might be a worthwhile investment, it should point out differences between models (I hope!).


2011 Toyota Camry, base, 2.5L/6MT, 196k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 155k, ours
1999 Toyota Camry LE, 2.2L/4AT, 217k, his
Re: 2010 Camry PZEV vs ULEV Engines interchangeable? [Re: diyjake] #5282612 12/02/19 07:28 AM
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diyjake Offline OP
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If i'm not mistaking PZEV is California and ULEV is Federal emissions.

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