Hello All, My camry has 146k miles and recently failed on a waterpump, so ran few miles on 'hot' engine (at 145kmiles, w napa water pump ran just ~60k miles- Bad!) just after replacement i got engine
error codes: p0441, P0445 and P0773. Not sure if 'Hot' (temp meter 'ran' high few times, before i figured
it was the 'water pump'!)..

Here is what i gathered after reading the forums and checking with my dealer/mechanic, but need help on figuring out what has to be changed and part number and where to get them!:

1) 0441 : Open or short on VSV circuit for EVAP
Solution:
a) from forum: Replace EVAP VSV and Charcoal Canister assembly !
http://www.automotiveforums.com/vbulletin/showpost.php?p=3203705&postcount=21

b) from dealer: none!

c) question: Any sugestions what to do?

2) P0450 Evaporative Emission Control System Pressure Sensor Malfunction

solutions from dealer: Replace Vapor pressure sensor

Question:
- Dealer part is about 229+tx, i found napa after market part for ~140+tx (napa part: CRB 221018; Echlin Fuel System)
https://napaautoparts.com/Catalog/Ca...(P_RecType%3aA)
- I dont know if this is the correct part, dealer says there are multiple valves and does have a picture to show me how it looks! He says toyota parts are best for sensors, as error codes may not disappear with after market? is that true?

- Any one with prior experience to confirm if this is correct part? and will after market part (napa ) work? any suggestions...pros-cons?

3) P0773 Shift Solenoid E Electrical

Dealer: they want to open up the transmission to figure our what the problem is, he is asking for ~450$ for labor to figure out!!, reading the forums, some say: Replace Trns. fluid and some says just replace 'shift solenoids
(two on camry 97, i believe?)'

Question: If i were to replace the solenoids, after market parts ok? or toyota parts?, i found one part on toyota parts web site: 35240-33010 will that work ? after market parts on rockparts or amazon runs to 180 to 220 $ for two solenoids made by 'Standard parts' and there is one other made by 'wells' Not sure if they are will be a good replacement. Any advice on what has to be done..

- Any advice: If replacing the solenoid will solve the error code or Transmission would have gone bad? ! i know a mechanic, who is asking me to take it to a trnsmission specialist for diagnosis.. Not sure if i have just sell the car!!, don't like one more loan
payment! - ( not sure if any one would buy it with CEL light on - )... Thanks in advance..

 

Who is going to do the work, dealer or other mechanic?

The codes have nothing to do with overheating. Suggest you don't run the temp in the red or you risk blowing a head gasket.

Suggest next time buying a new Japan built water pump. NAPA part quality can vary.

The P0441 and P0450 codes may be linked or the same problem. There is a long list of problems that can cause these codes. However it narrows down to a bad VSV valve (EVAP or vapor pressure), bad vapor pressure sensor, leak in the EVAP system such as cracked canister, vacuum hose, etc, tank fuel overflow check valve leak.

Could be a damaged or cracked vacuum hose, might check if the canister comes with the vapor pressure valve installed, the VSV for EVAP is its own part.

P0450 is a bad vapor pressure sensor or its wiring. This might be the place to start, if it is the problem the other code should go away.

Your links don't seem to work.

The brand of part used can make a difference, doubt it makes a difference for the vapor pressure sensor.

Try "Toyota Parts" | "Toyota Accessories" | 1stToyotaParts.com for discount genuine Toyota parts, if calling state you are an internet customer to get the discounted price.

The trans code could be a simple fix or not. The trans has more then 2 solenoids. You want the solenoid called "SL" also called "E". To access the solenoid requires dropping the trans pan. It can be tested with an ohm meter and of the trans DC power and air pressure applied to physically check its operation.

$450 plus parts seems pretty high. The car needs to jacked up and the pan dropped, not the trans removed.

Any decent part should work for the solenoid. Standard Parts and Wells are common known brands.

This code is reasonable common. The part controls lock up of the torque converter to lower RPM and increase MPG. The trans should be OK with this solenoid not working.

This code could be something more then the solenoid but testing the solenoid is first place to start.

If you go to a transmission shop they often have only one fix for all problems, this being replace the trans. This is how they make their money.

If your buying parts for Toyota Parts Zone (or any other place) call them to make sure you get the right part.

http://www.toyotapartszone.com/service/contact~us.html

 

Thanks for detailed reply ToyoMoho... On water pump it’s a big story… Radiator was surprisingly running empty while reservoir was full, first time mechanic filled with coolant/water.. solution by my mechanic: change radiator cap, charged 40$ for his time (0.5hr to check it all).. After couple of weeks it started to leak and emptied on a drive.. which made the temp rise.. then he figured it was the pump leak. (obvious finding..).!.

On the same note here is one more experience: I changed the first water pump and timing belt on a scheduled maintenance (@85K miles, ~4 years back).. Our AAA owned auto repair store made me believe (by auto service mech) parts they use are superior or equal to OEM parts (a.k.a NAPA parts -J, my bad to believe them.. !) and charged me equal to dealer price.. When it failed i checked with NAPA, it costs around 55$ (new)!!. damn ~105% over price.. Any way so don’t believe any auto shops; need to do our homework, to find dependable mechanic -... This time knowing used Auto zone duralast pump & timing belt ! they don’t carry any other brand and it was a hurry to get it fixed & the cost...(he charged labor cost 300$ + parts, is that fair?) hope it lasts!..

On the current problem: thanks for the link I will check on the parts and change one at a time, hope it fixes the error: sensor first and then may be order shift solenoids and ask my mechanic to test it before doing any change… One trouble with Toyota parts zone is I have to know Toyota part number, It does not allow us to search by part name... maybe I have to call them and check..

On the solenoids, Well’s brand priced more, around~200.. while standard brand is around ~170.. they sell it as pair (two of them)...not sure on OEM, may be toyota parts zone had few close to 150$ (they show multiple items have to see which one fits, searched by closes solenoid part number) any preference on which is better.. Vapor pressure Sensors choices are NAPA or OEM dealer, don’t find any others manufacturer..

Napa link:
https://napaautoparts.com/Catalog/CatalogItemDetail.aspx?A=CRB221018_0242401496&An=5 99001+101997+50070+2070002&Ar=AND(P_RecType%3aA)

Should I also change the VSP (vapor switching valve) common trigger for P0441/P0450 codes… looks like there are multiple (two?)…not sure which to start first... thanks again for your time to reply my posting..

 

Typically shops use their parts as they don't know the quality of your parts (a valid concern) and may be on the hook for repairs if the part fails. Marking up part prices is common, typically a shop buys wholesale and sells retail. If the shop is charging Toyota dealer price for parts ask them to buy the part from the dealer. If they are a valid repair shop they should get a discount from NAPA or the dealer.

$300 is OK, was the price of the belt included?

For the O2 sensors, if possible obtain the exact trouble codes. Some chain type parts stores will loan you a code reader, check the codes for free or a small fee. Check with AutoZone. Once you have the exact codes you can determine which sensors are identified and to a degree what the problem with the sensor is.

For the pressure sensor since this part is expensive suggest try to obtain some kind of test info. Perhaps your library has service info such as Motor or AllData. A Haynes service manual may have this info. Try the AutoZone websites vehicle repair guide section (this can be the source of much good info).

Are you talking about VSV's (not VSP)?

You can test the VSV's yourself. These are 12V solenoid valves. You can test these by checking valve operation unpowered and powered. One valve appears to be a 2-port On/Off valve. You can check for on/off operation when unpowered and the reverse when powered.

The other is a 3-port valve. One port should be common to the others (valve on or off). The other ports will switch based on the valve being powered or not.

Make sure the valve works and it does what it's supposed to do. Sometimes the solenoid part valves, the valve sticks open, closed, valves to open.

The internet has various sites that sell discount Toyota parts, compare their prices with NAPA. Also try Ebay. Some owners go to autoparts yards. In going this route find out what years of cars the VSP and VSV (if needed) fit and look for these cars. You can do this based on part number and year from the various parts sites.

 

Having this P0773 problem for a long time, it come and go very often.
As I know is when my car is cold (no warm up), the 2nd gear won't shift to 3rd gear unless you push the RPM over 3000, and at highway, you will experience high RPM then usual, (like 65 mile/hr, around 2300 rpm at normal stage, and 3000 rpm when it still cold),

 

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