Hey folk

i got the same issue for every one P0121 code and the famous lamb mode, since the throttle assembly is over $800 i am not dump to change the whole part while what i need is only the TPS.
i have done my homework and i found that.
the lexus GS400 TPS is same as the X type.
it has four pin which is 1- power 2-ground 3-idle 4-signal

can any one find what is the volt reading for the x type and lexus also the ohm reading.

here is the photo i found online.

http://www.tomsforeign.com/images/pr.../161659_2_.jpg

http://www.tomsforeign.com/images/pr.../173444_4_.jpg

lexus gs400

http://cdn0.autopartsnetwork.com/ima...1739174OES.JPG

 

Welcome to the forum HCW,

(I've moved your tech question to the X-Type section as it is model specific.)

Please follow this link to the New Member Area - Intro a MUST section New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to post an introduction about yourself and your vehicle to all members.

Graham

 

thanks you

 

You might want to look at this thread
https://www.jaguarforums.com/forum/x...acement-77560/
I don't know about the Lexus, I read somewhere it looks the same externally but isn't.
If you can get your hands on one the details in the above thread will let you check it.

 

One other thought. I was having what appeared to be similar issues with mine. I cleaned the throttle body and the issues disappeared. My throttle body has been changed twice now, and it's expensive.

The cleaning did help keep it from sticking and that seemed to be the crux of the problem (in my case)

 

A new Throttle body is expensive; getting one thru the dealer is economical suicide lol. Try BAP if you need one. I got quoted in the $500.00 range. Dealer in Tucson charges $1,800 for the part, and $300 for install

 

just found an after market new throttle body for cheap $211 + shipping
the brand is OES i wounder if any one have try it?

here is the link
04 2004 Jaguar X Type Throttle Body - Fuel Injection - Genuine - PartsGeek

 

just notice its free shipping.

 

Wow, that is a low low price! I'm jealous! The pic looks pretty good but you don't know until you get it in I guess.

Hell, I'd buy it!

 

That link quotes about $1000 now

 

>That link quotes about $1000 now

And out of stock, too...
================================================
Jaguar: Grace, Pace, and Space - Sir William Lyons

 

Brand New Genuine Throttle Body for Jaguar s Type x Type | eBay

That is $500... Did anybody use this?

 

Btw, I have 47k miles only, the sensor fault p0121, the sensor for ford Taurus is $25 I can't find the sensor for jag x type separately

 

And the TPS from "ford Taurus" is a direct swap for the Denso 198500-3300 used on the X-Type??? Really?

 

Found volt reading for X-type:

THROTTLE POSITION SENSOR 1 SIGNAL: IDLE = 0.74 V; FULL THROTTLE = 3.97 V
THROTTLE POSITION SENSOR 2 SIGNAL: IDLE = 1.65 V; FULL THROTTLE = 4.20 V

but ohm reading for Lexus:

Click Link To See Picture

 

I'd love to find a TPS solution. My car is on it's 3rd throttle body and this one is failing. It must be the South Florida heat.

It's stupid to keep throwing out money. I'm considering machining an adapter for an alternative.

 

Just an FYI, I could not take it anymore. So, today I took the TPS off of the throttle body and removed the metal cover. The TPS is well made internally, and mine did not show significant signs of wear, even under a microscope. It looked good.

Yes, at 40 power, I could just barely see rub marks on the surface of the resistive trace. But, they were absolutely tiny and immeasurable, and I'd consider them insignificant.

I had to break the metal cover off, peel it back and inspect. I re-assembled with JB-Weld Quik and a hot glue gun. It might hold, it might not. At this point, I don't care. Didn't work properly anyway.

I'll find out tomorrow on the way to work...

UPDATE: The internal cleaning certainly helped. It did not malfunction at all. Reliability remains to be seen. But so far, I'm thankful for one day of pleasant driving...

 

Have you check the wiring going into sensor for the throttle body?

 

If that question is directed at me...

Yes, I've casually checked the wiring at the plug for both the TPS and the stepper motor. I cleaned them (they were clean before) with contact cleaner, and used some contact enhancer called "Stabilant 22". It's works very well on problem contacts.

However, I have not disassembled the connectors and removed the wires to check for a good crimp junction. The problem does not seem to be the connector, but the TPS itself.

BY THE WAY, it's still working perfectly!!

 

This pic is from the other TPS thread on this forum.

This is exactly how mine looked inside when "peeled apart". Remember, those traces lay on top of the wipers. However, mine had no visible wear on the resistive traces. And the wipers were in better shape.

As I mentioned, I put a bit more pre-load on the wipers to ensure a good contact. In essence, I bent them up about 2mm with a pair of tweezers.

Still working great.