I just completed reassembling the engine and connecting the batteries. When I start the car instead of getting the ready light, I'm getting the following message. "Check Hybrid System" The yellow triangle is also visible. I've disconnected the batteries and waited ten minutes. Then started and stopped three times and the message is still there. I've also gone thru the sequence of gas pedal presses to try an clear it. I would appreciate any suggestions on what to do and where to begin. Thank you1 Chapman
Welcome to Prius Chat. I'd start with Techstream to pinpoint the next steps. Lots of possibilities and since the battery has been disconnected and the codes are there, there is something that requires investigation. Once you get the codes, post them here and we can assist with the next steps .
Hello Ray. Thank you for helping me with this. I need to buy Techstream and after looking online and at a couple of YouTube videos, I have questions. It looks like I can buy a cable and cd on Amazon for $70.00 or the software can be downloaded from Toyota with a monthly subscription. Is the software the same? What do you recommend? Thanks again. Chapman
Never done it, but there's an apparent gotcha: you need to fold the lever down, and THEN slide it in some direction.
Hey Mendel, I thought it was installed correctly before I read your post. Then I reinstalled it and pushed the lever to the right and the ready light came on! I'm still getting the "Check Hybrid System" message but The Engine Started! That's Major in my book! Thank you and Bisco for suggesting this. Chapman
I have not purchased Techstream but I have an OBDII/EOBD and it's reading the following codes. By the way, the engine started a couple of times and ran for about a minute each time. Then it shutdown. Now the ready light is not coming on. Here are the codes. P0102 P0113 P0328 P3191 I did find that the Air Flow Sensor was not plugged in. It is now.
After disconnecting the 12 volt battery for five minutes and reconnecting it, everything on the dash looked normal but the ready light did not come on. I pressed the start button again and instead of shutting down, the ready light came on. After a minute or so, the engine started and ran for maybe 20 seconds. The idle was rough but evened out before the engine rocked back and forth and shut down. Please watch the 11 second video of the engine running. It's rough and then shuts down and at that point the messages to check the hybrid system are displayed. I have no idea what the noise is from. I don't believe it is internal. The Codes are: P0328 and P3191 Here is a link to the video. https://share.icloud.com/photos/0rigTw2Vd2RCrovQ8yTqmRsqA#Niceville
Have you done the shifter/accelerator dance to get it in maintenance mode? It sounds like it’s just trying to prime the fuel system/relearn idle quality from the battery disconnection, throttle body being unplugged and engine repair.
I checked and the Knock Sensor is connected. I did the shifter/accelerator dance and got the maintenance mode. It started but is pretty much doing the same thing.
I am scared to suggest this, because checking would be a major pain in the butt, but is there ANY chance the timing chain jumped a tooth on the crankshaft? It might run a tooth out of time, but would be nasty. I was surprised that when I did mine, I had to check several times to make sure it stayed where it needed to be after I released the catch on the tensioner. the fuel injectors seemed to prime up in less than a second and it was off and running. I have heard other people scrub the injector tips with a metal brush and that is a big DONT. Did you connect all the electrical grounds back? It would be easy to miss one, as there are several.
The video was painful to watch. Did you get any non-fuel materials in the injector lines? It seems to be either missing hard, I know that one of the camshaft sprockets has an oil-pressure controlled advance, and I wonder if it is functioning correctly. Before you run it ANY more, I would find someone with a borescope and look into each cylinder, just to make sure no valves are actually contacting the pistons, This would be a fairly quick check, only requiring removing the spark plugs to insert the scope and look around.
If the knock sensor was plugged in, then it’s possible the timing is one tooth advanced. That would also explain the knock sensor code. However, in my previous experience, I have never seen a knock sensor code be the cause of a vehicle stalling. But there is always a first time.
One would only need to pull the valve cover to verify the timing. The painted links sit right on top, and the balancer and timing cover are marked with a dot and zero point respectively.
Have you verified that the hose connecting the pcv valve to the intake manifold is connected at both ends? Pretty decent chance this is your overlook...
