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Engine Specific Info and Questions => IDI Engine => Topic started by: wasteland_TD on February 16, 2005, 03:08:42 am

Title: Different 1.9TD pumps!?!
Post by: wasteland_TD on February 16, 2005, 03:08:42 am

I own Jetta year-92 with motor 1.9TD.My brother own Passat year-92 with 1.9TD too.I saw that there is hose from my turbo to the pump.But from the turbo of Passat there is no such hose - only a cap.
The both motors are AAZ(75PS) and the turbos are Garrett T2.
Why is this difference.
 :shock:

Title: Different 1.9TD pumps!?!
Post by: caddy on February 16, 2005, 05:57:06 am

yes i have the same differences on my passat.
on this pump there is no lda systeme on this pump , like a NA pump.

Title: Different 1.9TD pumps!?!
Post by: asau on February 16, 2005, 10:38:48 am

mine has the eco style pump and is from a 96 golf

Title: Different 1.9TD pumps!?!
Post by: deepmud on February 17, 2005, 12:55:51 am

The one with the hose increases fuel as the turbo builds boost. The other does not. It is known as the "Eco" as in "Ecological" - the idea was the turbo would only be used to fully burn the diesel, not to make more power (and just as much smoke).  

Other diesels by other manufacturers had no boost-added fuel either, and tended to puff a lot a black smoke until the turbo spun up and added enough air to the mix to get a complete burn. The Eco can be turned up some, too. But I believe the most power can be made with boost diaphram equipped pumps ( like mine  :twisted: ) .

Title: Different 1.9TD pumps!?!
Post by: asau on February 17, 2005, 01:13:36 am

can the boost diaphram be easily changed?