So nobody knows how fuel cut works on the nDBW cars?
01-05-2007, 12:34 PM
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So nobody knows how fuel cut works on the nDBW cars?
<ul><li><a href="https://forums.audiworld.com/a4/msgs/2646316.phtml">https://forums.audiworld.com/a4/msgs/2646316.phtml</a</li></ul>
01-05-2007, 05:45 PM
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injectors stop pulsing. 99% certain
you would have to ask of course while I am up in Denver and away from my Audi Engine Management technical training manual, and my Bosche Fuel Injection and Engine Management book that explains every detail of Motronic 5.9 (which is the nDBW system)
01-05-2007, 11:14 PM
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i've been playing around with various fueling setups for this GTRS elim. 310cc @ 3 bar
runs amazingly well on the stock ECU. But if I try and make more than 10psi of boost... it goes WHAM and feels when you hit the rev limiter in 1st really hard. It'll sputter and come back when I get out of the throttle.
VAG-COM says "charge pressure limit exceeded" but I thought the nDBW doesn't have any way to tell actual boost? So is it just based on the MAF?
VAG-COM says "charge pressure limit exceeded" but I thought the nDBW doesn't have any way to tell actual boost? So is it just based on the MAF?
01-06-2007, 05:29 AM
#6
its about load...the ecu runs by calculating the requested load from the rpm and pedal position
then tries to match that with fueling and wastegate control.
your DTC is because the engine is providing more load than is expected or called for.
so its probably maf based...whats your maf reading just before it dies? if it doesnt match what a stock car would have at the same rpm and pedal position, you get an error.
this is all just my undestanding of it...i could be wrong.
your DTC is because the engine is providing more load than is expected or called for.
so its probably maf based...whats your maf reading just before it dies? if it doesnt match what a stock car would have at the same rpm and pedal position, you get an error.
this is all just my undestanding of it...i could be wrong.
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