2012 gen 3 head gasket repair. P0016 and cannot clear "check hybrid system. Maintenance required"

What is it the timing folks around correct every like 9 turns or someting like that so move crank from timing marks lined up until they come round lined up again ? How many turns ? Or does it align ?

 

I have the timing code right now on gen 2 it's 500K and chain in sure stretched. Oh well . On our gen3 we had no issue with chain popping out pin at install that I know of.

 

Check the connections to make sure no pins are bent, wires broken, or not being connected properly.
Are they Toyota sensors? Or parts store ones?
You don't have to remove the timing cover to check the timing chain.
Put the engine at tdc and check that the cam sprockets are in the correct position. You won't see the different
colored links unless you get super lucky, or rotate the engine up to 30 times to get them to align.

You need a code reader that will clear the codes. Disconnecting the battery for 30-60 minutes might clear them.
But if you got those codes before replacing them, I doubt either were bad. Though carb cleaner is the worse you
can use to clean them. It's always best to use the proper cleaner...

 

N in tensioner you pull like a grenade after correctly verifying all slack on tensioner side to be collected at pin removal and general 12 o'clock positions or whatever it is for given engine. Running rough initially starting should not be a thing if all correct it should fire up and run like a new one more or less . If I have this going on at a startup it's instant off and find out why not leave it running and hope .

 

It's every ninth time you see the painted chain links come around, for gen 3.

It's just the number of links there are in the chain, versus the number of teeth on the sprockets. They'll line up every ninth time you see the painted marks. That's the same as every 70th crank revolution, or every 35th cam revolution. Just math.

Those won't necessarily be the same numbers for every type of engine. Somebody just has to count the sprocket teeth and chain links and do the math. These are the numbers you get for the Gen 3 Prius engine.

 

The tensioner won't just spring out. You have to rotate the crank backward until you hear it
drop the clip, then it springs the tenioner out.

Check the timing first. Since now you are now saying you were having issues driving, and you said you didn't for 60 miles, perhaps you don't have the tensioner in correctly, and/or are off a tooth????

11.74 is a dead battery for a Prius. I believe 12.5 or 12.4 is the extreme least you want it.
Charge it up at 5 amps or less overnight. Then check it 30 minutes after you remove the charger.

After re-reading your post, I realize that maybe the timing chain is off a tooth, since you said it ran
rough, and no power.

With the tensioner out, it is possible to pull the chain and move it a tooth. You need a 2nd person to
make it easier. One person can hold one cam in place, and rotate the other while you hold the chain.
VERY tricky, but doable.

 

If you take the plugs out it will turn easier.... with a wrench, don't use the impact!
Did you rotate the engine another 360 degrees and check again?
TDC means on the compression stroke for the #1 piston. You could just be on the exhaust stroke....
You should check that BEFORE removing the timing cover.

 

If you put the timing chain tensioner in, it shouldn’t just release the piston immediately, if it does, then there’s something wrong with the tensioner or something else. When I put my tensioner in, I rotate it to release the tensioner piston, then I rotate a couple of rounds and check my timing marks before I close everything up. I hope that’s just the issue since that’s the easy fix. I would pull everything out to the timing chain cover and recheck my timing. I used mechanic wires to hold the chain intact because the slipper slips and doesn’t hold the chain in place, which sucks.

you can watch my reinstall video part and hope that helps. I never had any check hybrid system when I put everything back together.