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 Re-ruogh run

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sydsmiler
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Number of posts : 9
Home City : orewa auckland new zealand
Registration date : 2015-06-08

PostSubject: Re-ruogh run   Sun Jun 25, 2017 6:58 pm

Well ive spent the week-end dismantleing my van to find that the EGR system has failed and my rebuilt engine has become a tar factory. Having looked up a lot of sites about this egr it seems the rubbish bin is its best place. I would have thought that so many 1kzte owners on this site someone would have something to say??.smiler.
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GPW
Hiace Master
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Number of posts : 487
Home City : Cambridge, UK
Model and year : Model: KD-KZH100G-MRPGT
Year: 1996
Colour: 4K1
Trim: FN42

Registration date : 2016-07-16

PostSubject: Re: Re-ruogh run   Mon Jun 26, 2017 8:53 am

There's a youtube video of a 1kz engine on a hilux being cleaned of tar.

There's only 2 ways to make a diesel low on NOX emissions, the dreaded EGR or a 'blue' urea additive used in a few modern vans and cars. Petrol is the only simple method: just the catalyst.

The EGR doesn't open at idle or full power, it acts on the mid-range, rapid tar buildup could be the sign of a slightly oily exhaust, maybe turbo blowby. How many miles since the rebuild? It should have been clean then.
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