1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Prius can't start Mystery

Discussion in 'Gen 2 Prius Main Forum' started by Filip, Jun 27, 2019.

  1. Filip

    Filip New Member

    Joined:
    Jun 27, 2019
    5
    1
    0
    Location:
    Bulgaria
    Vehicle:
    2007 Prius
    Model:
    II
    Hello, first of all excuse me for the bad English. I’m a prius 2 gen – 2007 y. owner. last week after stop at gas station for fuel (that may be only a coincidence), the car start to interrupts at the highway with 80 miles/h. It was very hot. But that happens only at balance speed, when i.m accelerate the engine is not interrupts. After 60 miles the car suddenly died, with red triangle and all others lights. I put the obd and clear code p3190, start it again and after half a mile, while car I shaking died again with p3190 and p0a80. The hv battery is totally empty (175v). Call Roadside assistance and got home with it. Now the next 2-3 days , I change the old fuel with new one. Clean throttle body and maf. Charge hv battery ( which is 2000 miles , after recycling – 3 elements was change, and other was reordered ) with lab psu , every two elements with 17,7 volts / 5 amper – 5 min. HV battery already shows 226 volts. Cleaned all error codes.

    Now, I push the start button, the car is going to ready mode…. And nothing, all I hear is one – tik sound. It’s trying to start ICE but only – tik …

    When put it on D, and push gas pedal , the car is moving and red lines on MFD start showing like the ICE is working but it is not. When put in R car moving very hard and shaking and traction is blinking.

    When I put it at N , and push it , I feel like pushing a car with manual gearbox with gear on 3 or 4 speed.

    My logic is that electrical motor and gears working properly , but GAS engine is stuck at D and that is reason not to start up and car to work properly.

    Put it on techstream and look data list at engine and transmission, no electrical errors . The only code is p3000, probably because car is not starting, and p0a80 , probably the same reason.

    Please help with suggestions . Thanks.
     
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    109,076
    49,576
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    welcome!
    i don't know much, but i don't think you should get P0A80 with a good battery

    and P3000 seems to be a bad battery eco

    is it possible something was not reconnected properly?
     
  3. Filip

    Filip New Member

    Joined:
    Jun 27, 2019
    5
    1
    0
    Location:
    Bulgaria
    Vehicle:
    2007 Prius
    Model:
    II
    But after reassembly i drove the car about 3 months. Today i try it again and in parking mode and ready , after 10 seconds it's trying to fireup engine, but only thing is that the car move 5 inches upside and then back. I think that mg1 motor is blocked to mg2 which is permanently conected to tyres. And if this is not from any ecu, than the transmission is out :( . Only one thing i don't understand. the clutch who have four springs. What's he doing , and is it possible to doing this by broken springs.
     
  4. Patrick Wong

    Patrick Wong DIY Enthusiast

    Joined:
    Mar 8, 2008
    18,200
    6,479
    0
    Location:
    Green Valley, AZ
    Vehicle:
    2015 Prius
    Model:
    Two
    Those codes are telling you that the high voltage traction battery still has a problem. You will need to do a better job replacing individual modules, or better yet, replace all 28 modules from a battery taken from a much newer Prius.

    The flywheel and transmission input damper assembly smooth the power delivery from the engine. Even if broken springs were present the engine should at least start.
     
  5. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    6,266
    5,962
    0
    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    The battery was completely dead from driving the car only on battery power. At 175 volts, the average module was 6.3 volts. That is effectively 100% depleted. If I understand you correctly, you charged the battery pack by doing two modules at a time. 17.7 volts, 5 amps for 5 minutes.

    here's my opinion and only my opinion....
    That is not enough. 5 amps = 5000mAh if charged for one hour. or the equivalent of 83mAh per minute. So you charged each module with 416mAh. That's only 6% charge. You need 10x that to have the battery in a healthy area.

    Once you have a charged battery, let it try to start the car once. This will test to see if the work you've already performed has cured the "engine not running" problem. If it fails to start, then you need to do more troubleshooting as to why the engine doesn't run (air, fuel and spark, etc)
     
    #5 TMR-JWAP, Jul 1, 2019
    Last edited: Jul 1, 2019
    Skibob likes this.
  6. Filip

    Filip New Member

    Joined:
    Jun 27, 2019
    5
    1
    0
    Location:
    Bulgaria
    Vehicle:
    2007 Prius
    Model:
    II
    Well, thanks for the answers. The battery is charging that way, this method is working fine if you have not high voltage charger, that was not the problem. The car is starting today... but with one wheel on the car jack and direct gear. Only that way and the wheel is spinning. ICE is permanently engaged to wheels. Probably the transaxle is blocking something.
     
  7. TMR-JWAP

    TMR-JWAP Senior Member

    Joined:
    Aug 12, 2016
    6,266
    5,962
    0
    Location:
    Columbia, SC
    Vehicle:
    2007 Prius
    Model:
    Touring
    You come here seeking advice. If the information you provided about the battery voltage is accurate, then the information I provided to you about your battery is also totally accurate. I didn't say your method of charging the modules would not work. I said you haven't charged them enough. If you try to buy a drink from a machine that costs $1.75, does it work if you only put in $0.10? You've been led, I can't make you drink. 10-4. Good luck with your car.
     
    #7 TMR-JWAP, Jul 2, 2019
    Last edited: Jul 2, 2019
    Skibob likes this.
  8. Filip

    Filip New Member

    Joined:
    Jun 27, 2019
    5
    1
    0
    Location:
    Bulgaria
    Vehicle:
    2007 Prius
    Model:
    II
    Your logic and explanation was very accurate. Simply the battery get enough for 5 min. Probably it's not discharge so much. Thanks for the wish. For me the transaxle is out and need for a new one. Probably there is a leak and is out of fluid. I'll make a last try to fill up with ATF and leave it to work for 10-15 min. Read somewhere that this kind of transaxle blocked without oil, but when it fill again start working :) :) :) . Sounds very stupid but i'll take a chance before change it.
     
  9. Filip

    Filip New Member

    Joined:
    Jun 27, 2019
    5
    1
    0
    Location:
    Bulgaria
    Vehicle:
    2007 Prius
    Model:
    II
    Changed the transaxle and everything is ok.
     
    bisco likes this.
  10. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    109,076
    49,576
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    congrats!(y)