S-Type / S type R Supercharged V8 ( X200 ) 1999 - 2008 2001 - 2009
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Need some help omease

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Old Jul 10, 2018 | 06:57 PM
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Default Need some help please

my 2003 Jaguar S type R is showing bank 1 & 2 lean. I’ve done all o2 sensors, air flow meter, smoke test, and still continue to get this code with restricted performance. Once I get on the freeway within a minute or two, restricted performance goes off and is fine while on the freeway. Once I get off the freeway, eventually restricted performance will come back..... anyone with suggestions, I’m about at my wits end.... thank you.....
 

Last edited by hqmok; Jul 10, 2018 at 07:02 PM. Reason: Misspelling
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Old Jul 10, 2018 | 07:25 PM
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Did you check fuel trims? Are there any DTCs stored? If so, post them here.
 
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Old Jul 10, 2018 | 07:35 PM
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Default thanks for the reply

Originally Posted by hqmok
my 2003 Jaguar S type R is showing bank 1 & 2 lean. I’ve done all o2 sensors, air flow meter, smoke test, and still continue to get this code with restricted performance. Once I get on the freeway within a minute or two, restricted performance goes off and is fine while on the freeway. Once I get off the freeway, eventually restricted performance will come back..... anyone with suggestions, I’m about at my wits end.... thank you.....

I did not check fuel trim , I’ll post DTC once it comes in again
 
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Old Jul 10, 2018 | 07:38 PM
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Originally Posted by NBCat
Did you check fuel trims? Are there any DTCs stored? If so, post them here.
I’ll post codes once they come up again. I just know it’s bank 1 & 2 lean..... any suggestions on checking fuel trim.....? Fuel filter has been replaced....
 
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Old Jul 11, 2018 | 02:39 AM
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OBD tool with live data. Note the trims (LTFTs). Hot engine, parked, at idle.
Then rev ~2500 and note them again.
 
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