Help Toyota/Lexus tech or anyone that knows......

**dfire9** · 10-02-2006, 09:37 PM

Cool well yeah i just want to make sure i get right part. Did you know of way to find out if car is cali spec? Can i get the air/fuel sensor at the toyota dealership also?

Oh let me ask u this if this is dumb question u can smack me, but if the car has air/fuel sensors does that mean the one on the front of manifold will also be air/fuel? Reason i ask is cause there is factory on on that and i got the part number off that one just in case it was needed. The part number on that on is 89467-41010 so i guess what iam asking is if say they both require air/fuel then that should let me know since it is part from factory. Do you see what iam getting at?

**green91** · 10-02-2006, 09:41 PM

Well the pn# was on your stock sensor and would have been the best way to determine what it really is. but according to TIS the p1155 only shows up on cali spec cars.. and yes you can get nearly any part for your lexus from toyota.

**dfire9** · 10-02-2006, 09:46 PM

Edited last post

**green91** · 10-02-2006, 09:51 PM

Ok the way the sensors naming works is, bank 1 and 2 are each of the heads, and the sensors are numbered in order. Typically on that motor if i remember correctly, bank 1 is the rear head, and sensor 1 is the first sensor from the head, making it the sensor on the exhaust manifold. bank 2 sensor 1 is the sensor on the exhaust manifold on the front head. B1S1 and B2S1 will both be the same types of sensors (air fuel) but they will have different part numbers because the connector wiring are different lenghts. Stock sensors will also have a colored band (sticker) on them to help match up with a new sensor. If that pn# comes up to an air fuel sensor then both of the sensors on the manifolds will be air fuel sensors.

**dfire9** · 10-02-2006, 09:57 PM

ok yeah cause i think bank 1 sensor 1 is the sensor on the back side near firewall and i guess the other one would be the one right on top.So is bak 2 sensor one the one right on top when u open hood? So actually tomorrow i can call and give them part number to the sensor that is right on the top when you open hood and that will tell me if i have regular o2 sensors or air/ fuel sensors.

**green91** · 10-02-2006, 09:59 PM

Correct! If you call them and get a pn and it turns out they are o2 sensors, id suspect a bad ECM.

**dfire9** · 10-02-2006, 10:03 PM

Why would u say bad ECM do u not think it would be bad o2 sensor. I know the one from autozone is new but we did have to cut connector off of that one and put right connector on so it cold not work from that or do u think that would make a difference? How expensive would u guess it is if have bad ECM?

**green91** · 10-02-2006, 10:10 PM

If your getting codes for air flow sensors and you have o2 sensors then something is wrong lol.

**dfire9** · 10-02-2006, 10:18 PM

Ok ok i gotcha well i will try to find out what the part # is tomorrow from lexus when they open.I will reply tomorrow morning when i get their answer. Again thanks for your help do u have access to computer during day or just evening time?

**green91** · 10-03-2006, 07:04 AM

yes i carry my laptop to work with me

**dfire9** · 10-03-2006, 08:33 AM

Ok i called and he said that is a air/fuel sensor part number. So i guess i need an air /fuel sensor for that back one. Is that safe to assume?
The part number he gave me for the sensor that i think i need is 89467-41021. Do you know the price for this one at toyota?

**green91** · 10-03-2006, 09:07 AM

Yea id say its safe to assume you need an air fuel sensor. Your best bet is to call whatever dealer is closest to you and ask.. prices vary a little between dealers

**dfire9** · 10-03-2006, 10:23 AM

Which one do u work at?

**green91** · 10-03-2006, 10:28 AM

Milton Martin Toyota in gainesville.

**dfire9** · 10-03-2006, 12:15 PM

I called Atlanta toyota and they said part was 209.20 and lexus says the part is 263.83. That is crazy for exact same part.

**green91** · 10-03-2006, 02:39 PM

bingo! i used to work at atlanta toyota, their prices are fairly reasonable for a toyota dealer. whats funny is lexus parts still come in toyota packaging, there is absolutely no difference in them.

**dfire9** · 10-03-2006, 02:56 PM

The funny thing is mall of ga toyota told me part was 250.47 and world toyota said part is 227.70. No one has same price. I will probably get part from toyota. Do you know if i will still get warranty since it is going on lexus and i bought from toyota

**green91** · 10-03-2006, 03:54 PM

Originally Posted by dfire9

The funny thing is mall of ga toyota told me part was 250.47 and world toyota said part is 227.70. No one has same price. I will probably get part from toyota. Do you know if i will still get warranty since it is going on lexus and i bought from toyota

You should, but im not sure how a part warranty works with a customer installed part. Would be a good question to ask the parts representative you talk to when you buy the sensor

**dfire9** · 10-05-2006, 06:24 AM

Well i got everthing and will install today. Guy at toyota dealer said to clean other sensor with brake cleaner to clean of stuff that may have gotten on there from broken sensor. Would you also recommend this. And if so just any kind of brake cleaner?

**dfire9** · 10-05-2006, 07:23 PM

Ok I installed it reset the light and it came back on and it is giving me a P0125 and P1153. But it is not giving me the P1155 and more. Here are what the codes say what do you think from here?

P1153 Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 2 Sensor 1)

P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control

**green91** · 10-05-2006, 07:29 PM

dude you replace both a/f sensors?

**dfire9** · 10-05-2006, 08:46 PM

No just the one. So do you think i need to change the other one also? Also do you think that will clear the P0125 code. The guy at sutozone says it is coolant temp sensor but for some reason i dont think it is that. What do you think? I just want it to be fixed and done. Thanks for hanging in there with me.

**green91** · 10-05-2006, 08:50 PM

He's wrong, i dealt with that code today. Its closely related to the a/f sensors and the MAF. Typically from a sensor becoming lazy and not sweeping as it should. BTW, reset your ECU for the new air fuel sensor by pulling the EFI fuse for about a minute.

**dfire9** · 10-05-2006, 09:07 PM

Where do you pull that from? I dissconnected the battery for about 10 to 15 min will that reset it? I also cleaned the one sensor with brake cleaner per guy at toyota. Do you think i need to replace the other sensor on manifold right when you open the hood. Also will that clear the P0125 code. What was solution on car you dealt with?

**green91** · 10-05-2006, 09:12 PM

I order an a/f sensor for it today. It was a lazy sensor and set the code. and yea the battery should work too.

**dfire9** · 10-05-2006, 09:15 PM

yeah i dissconnected it and drove about 3 miles and it came back on and and gave me code 1153 and 0125. Like i said the 1155 went away so are u suggesting i need to replace one right when u open hood? Also u never said do u think it will clear both codes? So you said i can rule out coolant temp? If so i will go get part tomorrow and replace it.

**dfire9** · 10-07-2006, 10:12 PM

Green where you at? We almost at the end holla back

**dfire9** · 10-10-2006, 01:37 PM

Thanks everyone who posted in helping me with car. And big ups to GREEN91 iI appreciate all your help and advise i ended up replacing both sensors and seems to have taken care of problemI have drove to work and all day yesterday and light has not come on. Thanks again i really appreciate

**green91** · 10-10-2006, 07:51 PM

sorry man i been away lol. but yea i was going to say to try replacing the other sensor also. but typically the CEL wouldnt come back right away anyway, they are a 2-trip logic DTC. but more than likely its fixed for ya now. id say you were lucky, i have alot of problems with the sensors seizing in manifolds on that 3.0 lol. OEM toyota sensors come with anti-seize though so you should be alright if you gotta do them again in the future.

**Z U L8R** · 10-12-2006, 10:27 AM

your motor is a v6, so it has 2 heads, the head that has cylinder 1 is bank 1, the head that has cylinder 2 is bank 2, sensor 1 means before the cat, sensor 2 means after the cat, so bank 1 sensor 1 would be before the cat, on the exhaust manifold where cylinder 1 is. on your car cylinder 1 is on the passenger side near the fire wall, the firing order is 1-2-3-4-5-6 , toward the firewall is cylinders 1, 3, & 5, in the front of the engine starting from passenger side to driver is 2, 4 ,& 6. bank 1 sensor 1 is BEFORE the cat near the firewall

, and don't use cheap ass bosch universals that you have to wire in unless you know how to do it #1, #2 if you changed the correct sensor you probably didn't wire it right, you can get a denso oe replacement for not that much #3 the problem may not be the sensor you could have a damaged wire or short in the heater circuit....good luck
Denso Part # 2344622 ( non-california model ) $200.70 suggested list price ( i can get you one a little over my cost, not this list price, if you want ^_^ )

**Z U L8R** · 10-12-2006, 10:33 AM

oh i didn't realize there was 3 more pages......i'm late LOL, at least you know your firing order now....not like you want to replace the back 3 plugs though LOL

**Jaimecbr900** · 10-12-2006, 10:45 AM

I'm glad you got it resolved.

Don't forget to tip the waitresses on the way out.....

**green91** · 10-12-2006, 04:57 PM

Originally Posted by Z U L8R

oh i didn't realize there was 3 more pages......i'm late LOL, at least you know your firing order now....not like you want to replace the back 3 plugs though LOL

bah they arent that bad lol. the rear VC gasket is alot more fun

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