Dutchy

I found this topic https://www.clublexus.com/forums/ls4...-goes-bad.html

I will measure the sensor. If its not in the tolerance i will replace it.

I also will follow your instruction yamae and check the timing again

Dutchy

So i really broke the sensor while removing it. I don't measure any resistance.






Code 13 is clear now.

I also whould like to know whats with the code 21 (main oxygen sensor, leftbank) Is the o2 sensor broken? can i measure it?

Also whould like to know who has experience buying the idler and tensioner pulley from rockauto. How is the quality ?

LScowboyLS

an O2 sensor code doesn't necessarily mean an O2 sensor itself is bad, sometimes it is just not liking what it is smelling!

Yamae

O2 sensors can be checked measuring the output voltage. It swings and it should be nearly 0V - 0.9V.

Dutchy

Finally i had some time today to change the parts. I bought the parts from rockauto, not so happy about the sending procedures but ok.

The parts look good, and the airtex cam-shaft sensor is a original toyota sensor ! I thought it whould be a aftermarket one. The pulley's from Dayco are good quality seems to be same as 'original'.

The cel light is off now, and the traction control is working again. So the timing-belt did not jump, im happy with the car again.

LScowboyLS

are you saying you received an OEM NipponDenso cam sensor in an Airtex box? - that would be way cool!

please post pics of sensor and box!

Dutchy

Yes it is. Tomorrow i will upload some pic's. The dayco tensioner pulley also has a NTN bearing (original, OEM?)

Yamae

So, your JDM Celsior is spending happy days now there in Netherlands with the newer ECU, the new timing belt and other new parts replaced by yourself. I'm sure it is running better than before. Congratulations on your success and your DIY mind.

Hope you keep it longer. As a guy who knows the car's secrets some, let's keep in touch with. My intention is just to help people who love Celsior or LS400 and want to keep them longer by the DIY.

Incidentally I also feel not very happy with Rockauto's sending procedures.

Dutchy

Hi Yamae, thanks for your reply ! I'm very pleased with the car now, it only drinks so much fuel... I still have to check that out. It's an old car, and the engine (121.450km) haven't had much maintanence back in Japan. So all that work is up to me haha. I'm planning to keep the car for a long time, but if my wallet won't let me in the future she will go eventually.

Cowboy:





The new sensor had the same part-nr only the production nr's were different. It looks identical.

LScowboyLS

cool pics!

here is a list of all of the Toyota OEM manufacturers for the LS400 we have figured out so far, hope you enjoy it!

671HOT92

Hello with al do respect Ilike what Yamae and cowboy said and are doing for the love of the ls400 great sevice to owners and knowledge in grneral its like listening to big brothers or sisters or elder s thankyou and others not mentioned. But I had an issue w/ my 92 ls400 everything leeds to capacitors in the ecu, was hoping to find exacly what capacitors to order and instument cluster starting to flicker also need help guys .
thanks again ,

P.S. wife wants to get rid off it but we {mostly me) really love it and could a 93 ecm fit a 92.

LScowboyLS

the list of correct capacitors for your year of LS400 are listed in post #1 of my ECU capacitors guide

make sure they are the exact premium Japanese low-ESR ones that I have the links to, as these have been carefully selected by myself and yamae to be the correct type for your LS400