Quote:
Originally Posted by FrodeS
Can I (test)run the car without the alda?
There must be a reason for the drop in boost pressure. As far as I can see, this must be because of :
1. Turbo not able to deliver enough air even if there is enough exhaust (turbo worn out?).
2. Too little diesel --> too little exhaust --> too little boost.
3. Diesel delivered too late, making the exhaust pressure drop, and therefor it is not enough pressure into the turbo.
I think this is the main reasons that can influence the boost pressure. Each reason may have different causes.
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you can run the car without the alda, but if you remove it, you must be careful not to run for extended periods of black smoke (ie.. heavy acceleration). You must be gentle with the pedal and know the limits.
I suggested the screw tweaking since it is usually easier to accomplish... for both time and labor
....you will not break it if you are gentle.
2. this possibility can be mostly removed by 'testing' the ALDA.
3. Early injection timing causes turbo lag / less exhaust pressure.