LDA on a 1.6 TD JX

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jacko1967
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LDA on a 1.6 TD JX

Post by jacko1967 »

Hi can someone please explain what the LDA does ? And should there be two pipes coming from it mine has 1 and it seems to be venting off underneath onto the engine block from a small pipe any info would be great as I don't know much about them cheers Danny.. ps ..van running ok ImageImage

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ZsZ
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Re: LDA on a 1.6 TD JX

Post by ZsZ »

The LDA is adding more fuel by moving a lever inside the the diesel pump when pressure is applied to the diaphragm inside the canister. As the turbo spins up it creates pressure in the intake manifold and that pressure is pressing the membrane that adds more fuel to the
more air supplied by the turbo.

By factory there should be only one hose from the intake manifold to the canister of the LDA. The other side of the LDA membrane is vented to atmosphere. So on the LDA canister there are two small nipples one has a hose connected to the manifold, the other is just left clear.
Zoltan
1986 Multivan ex-Caravelle. Van since 2006, running mTDi 1Z since 2008 with Fiat Croma 1.9 TDid pump 2008-2019, custom pump since 2019
5spd custom box 4.57 diff + 0.74 5th

jacko1967
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Joined: 28 Feb 2016, 18:07
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Re: LDA on a 1.6 TD JX

Post by jacko1967 »

Thanks for your explanation ZsZ.very informative I now know what the LDA is for .
Cheers Danny

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