LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Check engine light on cause vsc on?

Thread Tools
 
Search this Thread
 
Old 12-07-13, 08:06 PM
  #91  
SynicalVip
Lead Lap
Thread Starter
iTrader: (2)
 
SynicalVip's Avatar
 
Join Date: Feb 2011
Location: Fresno, CA
Posts: 539
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by LScowboyLS
I really can't imagine that your current tensioner is bad, those are very high reliability, but someone installing it incorrectly is common - how many miles ago was the tensioner replaced?
Everything was all done a little over a year, I don't travel much just work and in town stuff only so I would say no more than 5k
Old 12-08-13, 05:54 PM
  #92  
SynicalVip
Lead Lap
Thread Starter
iTrader: (2)
 
SynicalVip's Avatar
 
Join Date: Feb 2011
Location: Fresno, CA
Posts: 539
Likes: 0
Received 1 Like on 1 Post
Default





So as I said in previous post this is the bare wire that the serpentine belt cut through etc, i think it is for grounding purpose? Correct me if in wrong. Now I just bought this sensor and yes it is oem! My question is can I twist that bare wire and solder it to the best I can and then wrap it around the red/white wire? Luckily it only cut through to the bare wire not the other two.
Old 12-08-13, 06:33 PM
  #93  
Yamae
Moderator
 
Yamae's Avatar
 
Join Date: Aug 2011
Location: Japan
Posts: 3,844
Received 890 Likes on 672 Posts
Default

Originally Posted by SynicalVip
So as I said in previous post this is the bare wire that the serpentine belt cut through etc, i think it is for grounding purpose? Correct me if in wrong. Now I just bought this sensor and yes it is oem! My question is can I twist that bare wire and solder it to the best I can and then wrap it around the red/white wire? Luckily it only cut through to the bare wire not the other two.
The bare wire is to shield the red and white insulated wires electrically to avoid the noise. The engine compartment has different noises such as ignition noise, injectors switching noise and etc. To eliminate those, a shield wire is used. As long as those insulated wires are not damaged, all you need is to wrap them using a similar bare wire and solder ends to the original remaining bare wire.
Old 12-08-13, 06:38 PM
  #94  
SynicalVip
Lead Lap
Thread Starter
iTrader: (2)
 
SynicalVip's Avatar
 
Join Date: Feb 2011
Location: Fresno, CA
Posts: 539
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by Yamae
The bare wire is to shield the red and white insulated wires electrically to avoid the noise. The engine compartment has different noises such as ignition noise, injectors switching noise and etc. To eliminate those, a shield wire is used. As long as those insulated wires are not damaged, all you need is to wrap them using a similar bare wire and solder ends to the original remaining bare wire.
Glad to hear that! Didn't want to have to get a new sensor again :P I will solder it back together and wrap around the insulated wires then. Thanks!!
Old 12-08-13, 07:04 PM
  #95  
Boxcuta
Rookie
 
Boxcuta's Avatar
 
Join Date: Dec 2013
Location: Alabama
Posts: 69
Likes: 0
Received 2 Likes on 2 Posts
Default

Hope you get this **** sorted out!
Old 12-08-13, 07:10 PM
  #96  
Yamae
Moderator
 
Yamae's Avatar
 
Join Date: Aug 2011
Location: Japan
Posts: 3,844
Received 890 Likes on 672 Posts
Default

Your engine problem is mostly caused by the tensioner not functioning well and the shielding bare wire is only a part of the problem,I think. Hope you find someone who can do the job well. I am also not good at mechanical issues but I now have many mechanics who help me. I help their electrical issues free and in return they help me a lot.

Incidentally my posts reached 500 answering your question. I still have difficulties writing English, but I will be posting time to time when someone needs an aid of the electrical issue.
Old 12-08-13, 07:35 PM
  #97  
dc893
Lead Lap
 
dc893's Avatar
 
Join Date: Aug 2012
Location: FL :(
Posts: 693
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Yamae
Your engine problem is mostly caused by the tensioner not functioning well and the shielding bare wire is only a part of the problem,I think. Hope you find someone who can do the job well. I am also not good at mechanical issues but I now have many mechanics who help me. I help their electrical issues free and in return they help me a lot.

Incidentally my posts reached 500 answering your question. I still have difficulties writing English, but I will be posting time to time when someone needs an aid of the electrical issue.
Plastic clips can also break and the wires push out towards the serpentine belt and wear down. I had that happen once. I would think a tensioner would make the belt make all kinds of noise I would think. I had a crank pulley go bad and the belt rubbed against the front of the block and made a lot of noise. I also had an idler pulley seize and that was very loud.
Old 12-08-13, 07:45 PM
  #98  
SynicalVip
Lead Lap
Thread Starter
iTrader: (2)
 
SynicalVip's Avatar
 
Join Date: Feb 2011
Location: Fresno, CA
Posts: 539
Likes: 0
Received 1 Like on 1 Post
Default

I sure hope I get this resolve too been having problems for quite some time now and yet still have not fix! Keep putting more and more money into it but still not fix. I wish in can find someone locally who I can trust 100% and honest with everything. I mean I'm more of a DIY person but when come to something critical with engine wise etc I won't touch it I just don't trust myself enough. As for the clips yes mine broken now so that why it rub against the serpentine belt. I will have to cover it up as much I can and zip tie to something so it won't get run again. I think I will be ordering new hydraulic tensioner and timing belt just to be safe. Or do you guys suggest I just reload the tensioner and get new belt instead? I have spent a lot of money trying to figure this out but yet nothing have resolve it so am kind of on a budget now
Old 12-08-13, 08:00 PM
  #99  
dc893
Lead Lap
 
dc893's Avatar
 
Join Date: Aug 2012
Location: FL :(
Posts: 693
Likes: 0
Received 0 Likes on 0 Posts
Default

I would leave the tensioner alone because they can be expensive and usually don't wear out. I didn't worry about the insulating metal on mine and I can't notice any noise. You could put it together as good as you possible can and see how that works out and if you get any extra noise. I used the bracket for the coil packs to zip tie my wires out of the way and it has been fine for over a year now.

I would be willing to bet this solves your problem. I went through like 100 things like you to find that issue as well.
Old 12-08-13, 08:24 PM
  #100  
SynicalVip
Lead Lap
Thread Starter
iTrader: (2)
 
SynicalVip's Avatar
 
Join Date: Feb 2011
Location: Fresno, CA
Posts: 539
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by dc893
I would leave the tensioner alone because they can be expensive and usually don't wear out. I didn't worry about the insulating metal on mine and I can't notice any noise. You could put it together as good as you possible can and see how that works out and if you get any extra noise. I used the bracket for the coil packs to zip tie my wires out of the way and it has been fine for over a year now.

I would be willing to bet this solves your problem. I went through like 100 things like you to find that issue as well.
So would you suggest I change the timing belt only? I mean I did get the whole kit and change everything a little over a year now. My car started misfiring the other day so I park it and garage for now. Look for the problem, saw that the sensor got cut so I took it out. While taking it out I touch the timing belt and it is loose with some play in it. So I'm sure something went wrong in the timing stuff. That's why I got code p1345, p1349 ,p0300,p0301, p0303, p0305 and p0307. I just got my oil control valve in and waiting for the ocv filter to come in so can change it when doing the timing belt over.
Old 12-08-13, 08:37 PM
  #101  
dc893
Lead Lap
 
dc893's Avatar
 
Join Date: Aug 2012
Location: FL :(
Posts: 693
Likes: 0
Received 0 Likes on 0 Posts
Default

Thought you were referring to the serpentine tensioner for some reason, if you are gonna do the t-belt might as well do the tensioner as well since you will have it all taken apart anyway. I certainly hope no other damage was done if that belt jumped since that is an interference engine.

That broken wire made my car go all crazy and it was completely undrivable. Car would buck and the RPMS were all over the place.
Old 12-08-13, 08:43 PM
  #102  
SynicalVip
Lead Lap
Thread Starter
iTrader: (2)
 
SynicalVip's Avatar
 
Join Date: Feb 2011
Location: Fresno, CA
Posts: 539
Likes: 0
Received 1 Like on 1 Post
Default

Originally Posted by dc893
Thought you were referring to the serpentine tensioner for some reason, if you are gonna do the t-belt might as well do the tensioner as well since you will have it all taken apart anyway. I certainly hope no other damage was done if that belt jumped since that is an interference engine.

That broken wire made my car go all crazy and it was completely undrivable. Car would buck and the RPMS were all over the place.
Lol no this is actually for my timing belt stuff etc. mine it will misfire then back to normal then after a bit it misfire again so I didn't drive it anymore until I fix it. It still drove normal and all until that night it misfire. Even tho it misfire it drove fine just the motor was shaky. Well I guess I should just go ahead and order the parts then the tensioner and belt. Hope the idler tensioner and water pump is still fine
Old 12-08-13, 08:55 PM
  #103  
dc893
Lead Lap
 
dc893's Avatar
 
Join Date: Aug 2012
Location: FL :(
Posts: 693
Likes: 0
Received 0 Likes on 0 Posts
Default

Yeah, sorry about that, LOL. I don't know too much about changing the t-belt, but I would definetly change everything I could while it was apart. Might wait till some experts to chime in tomorrow before ordering the kit. I certainly hope you get this resolved.
Old 12-24-13, 05:41 PM
  #104  
SynicalVip
Lead Lap
Thread Starter
iTrader: (2)
 
SynicalVip's Avatar
 
Join Date: Feb 2011
Location: Fresno, CA
Posts: 539
Likes: 0
Received 1 Like on 1 Post
Default

Okay so I finally got some time to work on the car today since been doing overtime lots lately. Well I taken everything off to where it expose both cams etc and finally got those two stripped nuts off the clutch fan bracket. Anyway well I rotated the crank clockwise few times and then line up at tdc (0) and look like the line up on the cams is off just a bit. Now being just off a bit can that cause all this issue I'm having? All this misfire in cylinder 1,3,5,7 and code p1346 and p1349? At first I thought it was a loose timing belt but after rotating a few revolution it tighten up. Below are some pics I took of the mark line up etc, to me it is off by a tooth at least. From the look of it, the driver side look line up but the passenger is off by a tooth.









I also took a look at all my spark plugs as well, taken them out and about all of them have that rust kind of look on it. However on one of them the first one on passenger side closest to front of car. That one had oil in it, both the spark plug itself and the coil pack. Is it bad when it have oil in it? Could that also cause misfire? I think i need to do valve cover gasket change including all the tube seals and grommets. Have anyone used felpro valve cover gasket kit and do anyone recommend that?

Old 12-25-13, 04:21 PM
  #105  
SynicalVip
Lead Lap
Thread Starter
iTrader: (2)
 
SynicalVip's Avatar
 
Join Date: Feb 2011
Location: Fresno, CA
Posts: 539
Likes: 0
Received 1 Like on 1 Post
Default

Any inputs guys? I'm in the process of removing the timing belt and waterpump. The question is should I just go ahead and order a new kit or what should I just replace? Again the kit I got is a little over a year old and if anything probably a little over 5k miles on it since don't travel much


Quick Reply: Check engine light on cause vsc on?



All times are GMT -7. The time now is 07:53 AM.