timmythedog
14-04-2006, 09:23 PM
Having had my 1999 1.8T estate remapped by REVO to great effect I have now moved on, a) because it was too juicy b) I prefer to run a diesel.
So I have bought a 2000 w reg Passat 1.9TDi 115PD Sport estate, which it seems is quite a rare old car.
Anyway it drove impeccably and seems to have been well cared for, but after the mapped 1.8T was obviously a bit sluggish. I decided to buy a tuning box for £300 from Powerklick. Fitted it up and drove around for a couple of days. Had to remove it because it developed some horrible little niggles.
The worst of these and probably key to them all is that when on a motorway at a constant speed, could be 60mph, or 90mph it felt like a petrol car with a coil or lead breaking down. Or, like you were towing another vehicle who was applying and releasing the brakes constantly.
Other small clues were, the turbo boost seemed to switch on and off in a rather primitive way.
Consequently I removed the box and returned it, deeming it faulty. We switched for a different brand, a Vector, and tried that. Same result. The car returns to normal when removing the box. So assuming the boxes were okay, which seems likely as two in a row faulty in unlikely, they seem to highlight a problem on the vehicle that is not detectable when standard.
Iam thinking, what would cause this behaviour in a standard car. Shall i try and eradicate it by taking the same steps.
MAF?, or N75 boost control valve seem to be what the forums are saying. Or is it more complex?
Any offers gratefully appreciated on this or I may bin the boxes and go for a remap.
Cheers for now, Timmy The Dog
So I have bought a 2000 w reg Passat 1.9TDi 115PD Sport estate, which it seems is quite a rare old car.
Anyway it drove impeccably and seems to have been well cared for, but after the mapped 1.8T was obviously a bit sluggish. I decided to buy a tuning box for £300 from Powerklick. Fitted it up and drove around for a couple of days. Had to remove it because it developed some horrible little niggles.
The worst of these and probably key to them all is that when on a motorway at a constant speed, could be 60mph, or 90mph it felt like a petrol car with a coil or lead breaking down. Or, like you were towing another vehicle who was applying and releasing the brakes constantly.
Other small clues were, the turbo boost seemed to switch on and off in a rather primitive way.
Consequently I removed the box and returned it, deeming it faulty. We switched for a different brand, a Vector, and tried that. Same result. The car returns to normal when removing the box. So assuming the boxes were okay, which seems likely as two in a row faulty in unlikely, they seem to highlight a problem on the vehicle that is not detectable when standard.
Iam thinking, what would cause this behaviour in a standard car. Shall i try and eradicate it by taking the same steps.
MAF?, or N75 boost control valve seem to be what the forums are saying. Or is it more complex?
Any offers gratefully appreciated on this or I may bin the boxes and go for a remap.
Cheers for now, Timmy The Dog