P1349 VVT System Malfunction (Bank 1b) blocked oil control valve filter
03-31-13, 01:16 AM
#166
Driver
Join Date: Dec 2001
Location: Bronx, NYC
Posts: 138
Likes: 0
Received 0 Likes
on
0 Posts
^ok been away for a bit but seems like my P1349 code keeps coming back. Another thing that happened when I pulled the bolt out to remove the filter I noticed the filter fell out inside so now I gotta try and get the filter out tomorrow and see what tool I can use to get it out. If it aint one thing its another with this car. Also i'm not mechanically advanced but how am I applying 12v to the solenoid to test it? That part still has me a bit confused. Sorry if I sound crazy, I just hope its not nothing with the actual VVTI system thats gonna cost me lots of money. Aaargghh
Last edited by Triton3k; 03-31-13 at 01:55 AM.
04-01-13, 10:17 AM
#168
use a paper clip to get that filter out...or are you saying its WAY deep in there??? My filter will go in/out using my pinky, it wont go in "too far"...Im wondering if your engine doesnt require the filter?
On the 12V thing - unlpug the wire harness from the OCV valve, looking at the OCV Valve where the wires plug into you will see 2 pins, take 2 wires and apply 12V to those pins, (-) to one (+) to the other...you can jimmy something up to keep the wires from touching.
I used large wires and didnt strip one end, then I forced the wire over the pin on the OCV went into the end of the insulation of the wire...that forced the pin to touch the actual wire while keeping it insulated. You could use 2 small alligator clips also.
If you keep throwing the code after all this, then its most likely the cam shaft sensor, or possibly sludge built up inside the VVTi CAM or the rubber seal inside the VVTi Cam may be leaking internal oil pressure - (I took mine apart it was a major PIA...so DONT TRY IT!)
On the 12V thing - unlpug the wire harness from the OCV valve, looking at the OCV Valve where the wires plug into you will see 2 pins, take 2 wires and apply 12V to those pins, (-) to one (+) to the other...you can jimmy something up to keep the wires from touching.
I used large wires and didnt strip one end, then I forced the wire over the pin on the OCV went into the end of the insulation of the wire...that forced the pin to touch the actual wire while keeping it insulated. You could use 2 small alligator clips also.
If you keep throwing the code after all this, then its most likely the cam shaft sensor, or possibly sludge built up inside the VVTi CAM or the rubber seal inside the VVTi Cam may be leaking internal oil pressure - (I took mine apart it was a major PIA...so DONT TRY IT!)
^ok been away for a bit but seems like my P1349 code keeps coming back. Another thing that happened when I pulled the bolt out to remove the filter I noticed the filter fell out inside so now I gotta try and get the filter out tomorrow and see what tool I can use to get it out. If it aint one thing its another with this car. Also i'm not mechanically advanced but how am I applying 12v to the solenoid to test it? That part still has me a bit confused. Sorry if I sound crazy, I just hope its not nothing with the actual VVTI system thats gonna cost me lots of money. Aaargghh
04-01-13, 11:47 AM
#169
use a paper clip to get that filter out...or are you saying its WAY deep in there??? My filter will go in/out using my pinky, it wont go in "too far"...Im wondering if your engine doesnt require the filter?
On the 12V thing - unlpug the wire harness from the OCV valve, looking at the OCV Valve where the wires plug into you will see 2 pins, take 2 wires and apply 12V to those pins, (-) to one (+) to the other...you can jimmy something up to keep the wires from touching.
I used large wires and didnt strip one end, then I forced the wire over the pin on the OCV went into the end of the insulation of the wire...that forced the pin to touch the actual wire while keeping it insulated. You could use 2 small alligator clips also.
If you keep throwing the code after all this, then its most likely the cam shaft sensor, or possibly sludge built up inside the VVTi CAM or the rubber seal inside the VVTi Cam may be leaking internal oil pressure - (I took mine apart it was a major PIA...so DONT TRY IT!)
On the 12V thing - unlpug the wire harness from the OCV valve, looking at the OCV Valve where the wires plug into you will see 2 pins, take 2 wires and apply 12V to those pins, (-) to one (+) to the other...you can jimmy something up to keep the wires from touching.
I used large wires and didnt strip one end, then I forced the wire over the pin on the OCV went into the end of the insulation of the wire...that forced the pin to touch the actual wire while keeping it insulated. You could use 2 small alligator clips also.
If you keep throwing the code after all this, then its most likely the cam shaft sensor, or possibly sludge built up inside the VVTi CAM or the rubber seal inside the VVTi Cam may be leaking internal oil pressure - (I took mine apart it was a major PIA...so DONT TRY IT!)
^ok been away for a bit but seems like my P1349 code keeps coming back. Another thing that happened when I pulled the bolt out to remove the filter I noticed the filter fell out inside so now I gotta try and get the filter out tomorrow and see what tool I can use to get it out. If it aint one thing its another with this car. Also i'm not mechanically advanced but how am I applying 12v to the solenoid to test it? That part still has me a bit confused. Sorry if I sound crazy, I just hope its not nothing with the actual VVTI system thats gonna cost me lots of money. Aaargghh
04-02-13, 08:06 AM
#170
Driver School Candidate
Join Date: Jan 2013
Location: pa
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
This is a Lexus forum. For your answers you should be looking in the proper forums
04-02-13, 08:14 AM
#171
Driver School Candidate
Join Date: Jan 2013
Location: pa
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
04-02-13, 08:18 AM
#172
Driver School Candidate
Join Date: Jan 2013
Location: pa
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
^ok been away for a bit but seems like my P1349 code keeps coming back. Another thing that happened when I pulled the bolt out to remove the filter I noticed the filter fell out inside so now I gotta try and get the filter out tomorrow and see what tool I can use to get it out. If it aint one thing its another with this car. Also i'm not mechanically advanced but how am I applying 12v to the solenoid to test it? That part still has me a bit confused. Sorry if I sound crazy, I just hope its not nothing with the actual VVTI system thats gonna cost me lots of money. Aaargghh
04-02-13, 08:31 AM
#173
Driver School Candidate
Join Date: Jan 2013
Location: pa
Posts: 13
Likes: 0
Received 0 Likes
on
0 Posts
It's not easy to part with $120 but all the alternatives to replacing the ocv such as soaking it, cleaning it or just changing the filter is pretty much a waste of time. Rarely do the filters get clogged & rarely is the filter the problem. I tested my ocv while hot & it still performed well but when ur trying to pump hot oil thru it it can not perform the same as when it's removed & tested while not pumping oil. Just change the ocv & rid urself of the headaches. Just a heads up....when ordering ur new ocv make sure u order the new filter at the same time. It's an $8 filter & it does not come with the new ocv, it must b purchased separately....AGAIN, I have the whole procedure step by step in photos so if anyone needs to photos just ask & I will email them to u. It's 5 photos that will explain exactly & easily how to change ur ocv. Even if you don't have any mechanical experience it will take you about 45 minutes tops & the job only requires a 10mm socket & a 5mm hex head. If u need the pics make sure you quote this message so the forum alerts me that there is a request. I don't always check this forum & I would love to help ppl fix this simple problem themselves & not have to pay a mechanic a fortune to "possibly fix it"
04-02-13, 08:49 AM
#174
Driver
Join Date: Dec 2001
Location: Bronx, NYC
Posts: 138
Likes: 0
Received 0 Likes
on
0 Posts
use a paper clip to get that filter out...or are you saying its WAY deep in there??? My filter will go in/out using my pinky, it wont go in "too far"...Im wondering if your engine doesnt require the filter?
On the 12V thing - unlpug the wire harness from the OCV valve, looking at the OCV Valve where the wires plug into you will see 2 pins, take 2 wires and apply 12V to those pins, (-) to one (+) to the other...you can jimmy something up to keep the wires from touching.
I used large wires and didnt strip one end, then I forced the wire over the pin on the OCV went into the end of the insulation of the wire...that forced the pin to touch the actual wire while keeping it insulated. You could use 2 small alligator clips also.
If you keep throwing the code after all this, then its most likely the cam shaft sensor, or possibly sludge built up inside the VVTi CAM or the rubber seal inside the VVTi Cam may be leaking internal oil pressure - (I took mine apart it was a major PIA...so DONT TRY IT!)
On the 12V thing - unlpug the wire harness from the OCV valve, looking at the OCV Valve where the wires plug into you will see 2 pins, take 2 wires and apply 12V to those pins, (-) to one (+) to the other...you can jimmy something up to keep the wires from touching.
I used large wires and didnt strip one end, then I forced the wire over the pin on the OCV went into the end of the insulation of the wire...that forced the pin to touch the actual wire while keeping it insulated. You could use 2 small alligator clips also.
If you keep throwing the code after all this, then its most likely the cam shaft sensor, or possibly sludge built up inside the VVTi CAM or the rubber seal inside the VVTi Cam may be leaking internal oil pressure - (I took mine apart it was a major PIA...so DONT TRY IT!)
04-03-13, 04:36 PM
#175
Not as Easy. OCV is super easy. If changing the OCV and filter do not rid the problem, then 90-99% of us wont have the equipment or skill to fix the other parts.
Cleaning filter/OCV Valve us usually useless as Nuck's said. Must be test Installed and with engine running HOT.
At that stage you either take to a good mechanic (or dealer if you really want to), and see if they can run diagnostics to determine the real error.
My experience with the dealers isnt great, in EVERY case (from Multiple Lexus Dealers) on a difficult problem they simply suggested replacing entire expensive modules...Entire Throttle Body, Entire ABS Unit, Entire OCV VVTi Cam/Pully System, Even the ECU - EACH Time they were WRONG!!!
They should be able to Scope the car while running, rev up and down, see the timing using the scope and strobe, and then determine if your problem is related to actual timing, or maybe just the ECU, or maybe a loose wire...how much time will that take, and how much are you willing to pay another person to invest that time to narrow down and find the real cause of the problem.
Cleaning filter/OCV Valve us usually useless as Nuck's said. Must be test Installed and with engine running HOT.
At that stage you either take to a good mechanic (or dealer if you really want to), and see if they can run diagnostics to determine the real error.
My experience with the dealers isnt great, in EVERY case (from Multiple Lexus Dealers) on a difficult problem they simply suggested replacing entire expensive modules...Entire Throttle Body, Entire ABS Unit, Entire OCV VVTi Cam/Pully System, Even the ECU - EACH Time they were WRONG!!!
They should be able to Scope the car while running, rev up and down, see the timing using the scope and strobe, and then determine if your problem is related to actual timing, or maybe just the ECU, or maybe a loose wire...how much time will that take, and how much are you willing to pay another person to invest that time to narrow down and find the real cause of the problem.
04-03-13, 04:40 PM
#176
Nucks - My filter wasnt located where the OCV installs, it is located where the Oil line and hollow bolt connect a few inches below below the OCV valve...The first post on this thread shows the diagram, which is identical to my GS300 2JZGE NA engine.
are there alternative setups?
are there alternative setups?
It takes 2 minutes to get the ocv off. Just take it off & turn it over & the filter will fall out. I had the same problem & sticking things in there to try to get it out caused mine to go in deeper. All the time I wasted attempting to fish it out could have been avoided just buy removing the ocv & shaking the filter out
04-03-13, 04:44 PM
#177
Another thing the ECU uses to determine the VVTi is the Camshaft sensor, located below the harmonic balancer - The crank shaft has a fitting on it that has teeth on it, and those teeth are magnetic and pass over the sensor. Forgot about that.
Guess just saying, if its not OCV itself, your gunna have to take it somewhere. :-(
Guess just saying, if its not OCV itself, your gunna have to take it somewhere. :-(
04-18-13, 09:09 PM
#178
Driver School Candidate
Join Date: Dec 2012
Location: MD
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Ok..I have read every post on this thread and I still can't figure out where the OCV filter is located on my 98 LS400. It still presents the same problem at idling and low speeds. The VSC light still came on and code P1349 came up from a visit to Pep Boys. I have taken out the OCV and cleaned it thoroughly. Still have same issues. Anyone can help lead me to the OCV filter?
It had a broken drive belt tensioner, a bad alternator, and a leaking PSP. I replaced the alternator and the tensioner and reconditioned the PSP.
It had a broken drive belt tensioner, a bad alternator, and a leaking PSP. I replaced the alternator and the tensioner and reconditioned the PSP.
04-19-13, 09:36 AM
#179
johnn: Thats prob cuz this thread is for GS's with the I-6 engine.
But...that being said, I would have swore someone posted a few pages back on where the OCV's are located on the V8's (there are 2 of them, since the V-8 has 2 VVTi cams)
You may jog over the the LS4xx forums and try a search for that engine code if this thread doesnt help.
Or try googleing that code and LS400 and that might find the OCV thing in the LS forums (ive found it easier to google search for clublexus than using the search tab...just my take on it)
In any event, since yours is the LS, not the GS, whatever you find out may help others if you post info on the LS forums.
But...that being said, I would have swore someone posted a few pages back on where the OCV's are located on the V8's (there are 2 of them, since the V-8 has 2 VVTi cams)
You may jog over the the LS4xx forums and try a search for that engine code if this thread doesnt help.
Or try googleing that code and LS400 and that might find the OCV thing in the LS forums (ive found it easier to google search for clublexus than using the search tab...just my take on it)
In any event, since yours is the LS, not the GS, whatever you find out may help others if you post info on the LS forums.
Ok..I have read every post on this thread and I still can't figure out where the OCV filter is located on my 98 LS400. It still presents the same problem at idling and low speeds. The VSC light still came on and code P1349 came up from a visit to Pep Boys. I have taken out the OCV and cleaned it thoroughly. Still have same issues. Anyone can help lead me to the OCV filter?
It had a broken drive belt tensioner, a bad alternator, and a leaking PSP. I replaced the alternator and the tensioner and reconditioned the PSP.
It had a broken drive belt tensioner, a bad alternator, and a leaking PSP. I replaced the alternator and the tensioner and reconditioned the PSP.
04-19-13, 10:59 AM
#180
Ok..I have read every post on this thread and I still can't figure out where the OCV filter is located on my 98 LS400. It still presents the same problem at idling and low speeds. The VSC light still came on and code P1349 came up from a visit to Pep Boys. I have taken out the OCV and cleaned it thoroughly. Still have same issues. Anyone can help lead me to the OCV filter?
