XJ XJ6 / XJ8 / XJR ( X350 & X358 ) 2003 - 2009

Fuel Pressure sensor

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Old Jan 3, 2019 | 03:43 AM
  #41  
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The guys need to see any Diagnostic Trouble Codes (DTC's)….
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Old Jan 3, 2019 | 07:11 AM
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Originally Posted by EsRay
The guys need to see any Diagnostic Trouble Codes (DTC's)….
(See attachment):
Thanks EsRay. I will pass this along. P.
 
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Old Jan 3, 2019 | 07:15 AM
  #43  
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I can't find one for 2009 but the codes would be the same i suspect.
 
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Old Jan 4, 2019 | 04:28 AM
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The codes are the same. Surely your Creader 3001 should give you DTC codes?
 
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Old Jan 10, 2019 | 08:33 PM
  #45  
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Miss my car. The garage can’t determine why it is misfiring. At this point they feel a slipped timing gear is the only thing they can think of. I really can’t justify the huge expense to do that unless I do it myself. Of course there is no guarantee that that is the problem. Complete mistery.

.
 
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Old Jan 11, 2019 | 12:27 AM
  #46  
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Going back on JagV8's earlier comment, why still Open Loop after very nearly a minute and revs at 1500 rpm? Is your temperature gauge giving the ECU a false reading? None of your uploads show Engine Coolant temperature?
Also, your Throttle Position (TP) 17.3% - Max I tend to see at idle is 3%? Is your TP sensor U/S?
 

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Old Jan 11, 2019 | 05:55 AM
  #47  
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TPS is likely OK. The PCM just learns the "at rest" (i.e. min) value and 17% is fine.
 
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Old Jan 11, 2019 | 07:35 AM
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Coolant temp?
 
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Old Jan 11, 2019 | 07:42 AM
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JagV8, I've never seen anything like 17% at idle - 3% max? Have I got this very wrong? Still wondering about your open loop after nearly a minute? Temp Sensor?
 

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Old Jan 11, 2019 | 10:41 AM
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The PCM just tracks what values it has seen min & max. Min of 17 is fine, max hardly ever gets to 100. It figures out what you want fairly easily.

Something is wrong about the OL, yes. Basically check all the things for plausibility in the hope something's obviously faulty and then life gets tougher.
 
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