Last post on Jul 18, 2007 at 10:32 AM
You are in the Toyota Sienna
What is this discussion about?
Toyota Sienna, Van
#3557 of 3687 Can't get check engine lights out after multiple repairs?
Jun 22, 2006 (8:49 pm)
I've got a 1999 Toyota Sienna CE, just got the following 3 codes P0125 - closed loop fuel control insufficient coolant temp, P0135 - 02 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1) & P0155 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1).
This minivan has been at the dealers and multiple mechanics to try to repair. These are the latest readings. The dealer said both 02 sensors were bad & I had them both replaced. A local mechanic was originally getting Solenoid Sensor Malfunction, which I replaced. Then the shift cable was replaced. Can anyone help?
Originally, when driving for a while up step hill, the car would suddenly lose power and overheat (the transmission?) After replacing both 02 sensors, out of the blue it acts as if it has no power then lurches into power - never no when and not regular. Any assistance is appreciated - you can email at bbabtrustyahoo.com as well as resply - thanks.
#3558 of 3687 Re: Can't get check engine lights out after multiple repairs? [hawaiial]
Jun 23, 2006 (2:44 am)
the solenoid sensor sounds like it was fixed. shift cable too - i guess both needed to be replaced.
anyway, now one of your problems sounds like perhaps a bad engine temp sensor (which might result in the unit running richer than necessary and also possibly retarding the transmission control module from shifting through all the gears).
but, latest codes seem to suggest you've still got O2 sensor issues (I presume right after replacement). perhaps something wasn't replaced or re-connected properly.
if your O2 sensors are still reporting bad, and if the car is loosing power going up hill, sounds to me that you might not be scheduling the correct amount of fuel to the engine, and in addition, based on them being a problem in the past, perhaps (emphasis) the Catalytic Convertor may be history soon.
you may need to have it diagnosed by a specialist on Toyotas (maybe an independant shop - perhaps someplace other than the dealership if their work is in question).
if you do, ask if the people that look it over again can determine if you actually got 2 new O2 sensors and if they are hooked up properly.
question, if the dealership just replaced 02 sensors and you're getting 02 related OBDII codes, why isn't the dealership taking care of you to re-diagnose and replace parts for free?
perhaps I'm misunderstanding your post.
#3559 of 3687 Re: TOYOTA SIENNA 2000 AC GOES OFF [rperezfranco]
Jun 23, 2006 (4:11 am)
this is to protect the compressor fom over heating. If the refrigerant is low and the A/C is working not stop the compressor will cut off so it can take a breather. this is how its designed!
#3560 of 3687 Re: TOYOTA SIENNA 2000 AC GOES OFF [deepan]
Jun 23, 2006 (7:46 am)
and also, i believe refrigerant and lubricant must be in the system for lubrication / sealing of the bearings, otherwise the unit would surely fail.
#3561 of 3687 Re: Can't get check engine lights out after multiple repairs? [user777]
Jun 23, 2006 (8:51 am)
Thanks for the reply. Here on the Big Island we have 1 Toyota Dealer. They charedg $150 just to read the codes, and wanted $600+ to change the sensors. I bought after market 02 sensors for $70 each and had a shop put them in for $100 - maybe I got ripped? My buddy thought the cat might be the problem just putting his hand behind the exhaust and feeling little pressure. Believe it or not, I've taken it 2 several shops to test the cat and no one seems to have the equipment to test emissions, since emissions is not required here. The closest, was Midas took a stethoscope up and listened and said everything sounds good. Big Island Toyota charges $1,500 for the catalytic coverter (part only) and Midas $100 - $300 for their after market. However, if that's part of the problem, I concerned with going after market now after my 02 experience. Anyways, I will check the temp engine sensor as well - really appreciated your suggestion.
#3562 of 3687 VSC/Trac/Engine Light just came on
Jun 24, 2006 (5:40 am)
These 3 lights just came on my 2001 Sienna. Heading out on vacation...any ideas?????
#3563 of 3687 Re: VSC/Trac/Engine Light just came on [buyer777]
Jun 24, 2006 (11:00 am)
Need to find someone with a code reader - hopefully, a friend who won't charge you to much to see the codes. Check out http://www.toyotanation.com/forum/t94312.html, they had same three lights. Good luck
#3564 of 3687 Re: Dashboard clock and lighter removal/repair? [therocks]
Jun 26, 2006 (7:37 am)
Yes, it is a fuse. . .by the driver's left knee there is a fuse panel. When you take the cover off there is a grid to tell you which fuses are where. I believe it is on the bottom row of fuses.
I can't help you with the removal of the charger piece but you will need to get that removed or the fuse will keep blowing.
I took my wife's sienna to three different places and none of them could either "diagnose the problem" or had the correct fuses. .
You should have at least one extra fuse under the hood.
Check your manual if you have it. I used this one and then blew that fuse so i ended up searching on eBay for them. . .cost around 25 cents each.
You can remove the old fuse with a needle nose pliers and may be able to install the new fuse with your hands only.
Hope this helps. . .also if you have power mirrors they are probably not working either.
#3565 of 3687 Re: VSC/Trac/Engine Light just came on [hawaiial]
Jun 29, 2006 (12:35 pm)
Discount auto and other parts suppliers will check codes for free.
#3566 of 3687 Re: VSC/Trac/Engine Light just came on [gunga64]
Jun 29, 2006 (3:58 pm)
Thanks..any "catch" to that? Or can I then just drive away??