Joined: 22 Dec 2006 Posts: 861 Location: chesterfield derbyshire
Posted: Wed Dec 12, 2007 9:25 pm Post subject: tdi bug
you could never get a tdi engine with a throttle cable all tdi engines were flybywire, the 1.9td engine (aaz code engine) has a stop solinoid but the pump doesnt make high enough pressure to correctly "break" the injectors correctly. The blue, red & black pipes connected to the turbo should be connected to a N75 valve this is used to control boost presure via the ecu signal if this is not used the engine can potentialy over boost not looking to shoot you down in flames but be careful, overboost + fuel starvation= engine damage
the pump im useing has a preasure activated fuel advance which is piped to the turbo preasure line and also to the turbo bypass valve so overpreasure should,nt be an issue. it has been in now about a month and is running sweet as and with ample power and mpg. we checked the smoke emissions and they came in at 2.2 so it aint to lean or to rich but thanks for your advice
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