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Toyota Dealer responses to Enginer kit ?

Discussion in 'Prius PHEV Plug-In Modifications' started by pbui, Jun 11, 2010.

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  1. RobH

    RobH Senior Member

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    The part number that I saved from some earlier post is G9020-47031. But if you study the parts diagram at Conicelli Parts Center , you see 3 pumps. I think the part number is for item #1 in the diagram. There is also a pump at #20, which looks like it goes to the thermos. The pump at #8 is a new one on me (a "water pump inverter" for $440??). The water valve at #16 ($51) has been mentioned before as a weak point.

    I've purchased a few things from Conicelli successfully. Also, 2009 Toyota Prius Cooling - Parts.com has the best prices I've seen for OEM parts.
     
    #21 RobH, Jul 3, 2010
  2. linuxpenguin

    linuxpenguin Active Member

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    Before you buy the pump I would make certain that that is the problem. That's a lot of codes to be just one pump...

    It's my understanding that the upgraded pump is only for inverter coolant--only one of those DTCs dealt with inverter coolant.

    Andrew
     
    #22 linuxpenguin, Jul 3, 2010
  3. pbui

    pbui Member

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    The darn CELight went off today, with 91F outside air temperature, no AC, go figure.
     
    #23 pbui, Jul 4, 2010
  4. vertex

    vertex Active Member

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    pbui:
    Based on all the codes you reported, I do not think you have a single component failure, as linuxpenquin said. Rather you have an electrical connection problem. If it was my car, I would start by checking the connectors on the coolant control valve. You could have corrosion build up, and just need to uplug and replug the connectors to clear up the problem.
    Another possiblity, although I would expect to see other codes as well, as that the 5 volts that drives the sensors is sometimes out of specification. This could be caused by one of the items that it drives drawing too much current.
    I had the 5 volts go on my car, and I had more codes then the ones you mentioned, but if I recall, I had them also.
    If you can't figure it out, I would not use the dealer, they would probably want to change everything. Check out Lucious Garage (you would think I got a commision for all the times I recommend them, never even having been there!)
     
    #24 vertex, Jul 4, 2010
  5. pbui

    pbui Member

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    thanks for all the responses. I am sort of a DIY person and tend to avoid taking the car in, unless I have to. We have been driving with the CEL since 2004. BTWay, it came back on yesterday. I know of Luscious Garage, just want to there 'cause of the name. Unfortunately it's more than an hour away.

    Good idea on the electrical connections; i'll check and may spread some contact cleaner in them.

     
    #25 pbui, Jul 5, 2010
  6. pbui

    pbui Member

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    Although off topic, i thought to give a brief update for general info: finally had the red triangle, VSC, brake, and MFD display car with ! mark indicating hybrid system problem on the way to Berkeley Monday. Car kicked out of cruise but acted normal otherwise. Continued to drive another 30 miles to destination. Upon power cycling, brake warning & VSC lights disappeared. Check Inverter Coolant Pump - not running and no ripple in Inverter Coolant tank.

    Drove home, brake & VSC warnings came on again, cruise kicked out, and amazingly it occured at the same highway location ! got home for a total of 105 miles after the Xmas light display; everything behaved normally.

    Replaced the Inverter Coolant pump, much thanks and appreciation to PChat and Hobbit's documents. I didn't have time to drain & replace the coolant as planned, had to drive daughter to karate. So i just loosen up the hoses, pulled the top one off and stuck on the new pump, let the coolant fill the pump, cover the run-off hose with thumb, pull off & install the other hose. Ran the pump with the loop bleep but never saw any bubble. I ran multiple cycling as well as a long several minutes.

    Drove to town and back last night, triangle, MIL, hybrid warning still on. EV mode seems much more willing now, but it was a cool evening.

    Try to clear code with cheapy OBDII scanner, but got scanner error. But all the warning lights disappeared. Try to bleep inverter coolant again, but no bubble detected.

    Went to work on bike & public transport; wife will drive the Prius as usual.

    Seriously thinking of installing a 2nd Enginer converter as a booster to help with the daily 2,200 ft climb home.
     
    #26 pbui, Jul 7, 2010
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