XJ XJ8 / XJR ( X308 ) 1997 - 2003

DTC P0172 and P0406

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Old Jul 18, 2012 | 06:51 PM
  #1  
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Default DTC P0172 and P0406

?I get these two codes intermittently, even a RP at one time.

I have an idea what they are.

Should I try fuel injector cleaner first?


The 0406 was listed as fuel level sending unit problem.

I better get gas!!


tia
 
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Old Jul 19, 2012 | 05:26 AM
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Hi
Look at this other thread on P0406 DTC (post# 2 issued resolved by clean throttle plate):

https://www.jaguarforums.com/forum/x...e-p0406-37677/

I would try cleaning Throttle body and its electrical contacts, also MAF.

Here is a PDF about cleaning Throttle body, MAF and the Part Load Breather (for XK8, but most of it also applies to XJ8) 2 links (try #1 first, if no go, use the second weblink):

http://205.196.123.8/auxklm9ttxcg/tb...d.Breather.pdf

Free Cloud Storage - MediaFire

This PDF file was on the Max Performance Cars website (the website does not seem to be online anymore).

When I tried to add this PDF as an attachment here on the forum, it failed to upload (2.68 MB).

Jim Lombardi
 

Last edited by jimlombardi; Jul 19, 2012 at 05:48 AM.
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Old Jul 20, 2012 | 05:02 AM
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Thanks!!
I made an error the 0406 is 0460.

sorry.

thanks
 
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Old Jul 20, 2012 | 05:21 AM
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Hi Antony
Another thread that mentions P0460 recommended to have a full load test on your battery.

Apparently the battery can cause the ECU to generate a P0460 DTC code.

Jim Lombardi
 

Last edited by jimlombardi; Jul 20, 2012 at 05:23 AM.
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