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Author Topic: 3 fault codes  (Read 971 times)

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raywilb

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3 fault codes
« on: 19 February 2016, 17:26:32 »
p1125 boost pressure control deviation, p0400 egr control deviation, & p1590 auxillary heater open circuit, got an inkling re first two, but no idea about p1590. any advice gratefully accepted  :y
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VXL V6

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Re: 3 fault codes
« Reply #1 on: 19 February 2016, 18:02:51 »
I spent ages chasing round P0400 codes on my DTi, think I pretty much renewed all of the vacuum pipes and elbows (including the large one at the rear of the head connected to the vac pump), the EGR and swapped solenoids around. Just when I think I'd fixed it the problem the diesel pump died!
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TheBoy

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Re: 3 fault codes
« Reply #2 on: 20 February 2016, 10:25:01 »
Check all vacs, clean egr, clean intake if possible, clean boost sensor.
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raywilb

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Re: 3 fault codes
« Reply #3 on: 23 February 2016, 15:25:31 »
Quote from: TheBoy on 20 February 2016, 10:25:01
Check all vacs, clean egr, clean intake if possible, clean boost sensor.
cleaned everything & still had eml on. the vac pipes looked too short, making 90 degree bends not right. i went to a scrappy & took a few. so now they are sitting around the engine ok. I did find one that had a minute split at a joint, so replaced. also replaced egr valve with new. and pleased to declare no more eml light. :y :y
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