I have a 98 passat 1.8 w/ 1.0 wetchip, n75j, and tt dv. (no exhaust mods and stock air filter and box)
For the past two weeks my car has been having a disturbing problem: when I accelerate the engine bogs out when under medium to high psi's, usu. 13-20 psis's. Note, this problem is most prominent in 5th gear, although it has happened in 4th occasionally, 3rd once, and never in the lower 2 gears.
When I say the engine bogs out, I mean that for only a split-second there is a almost complete dropoff in power, then the engine returns to normal operation, although this problem has occurred in succession many times, once again, most notably in 5th gear.
Futhermore, this problem has semed to coincide with the cold weather. I live in Southeatern Pa, and the weather has gotten cold very fast. I have never had this issue during the summer; howver, I've only had the wetchip and n75j for under 2 months, so whether this is a weather tempature problem or time/duration problem remains in doubt.
I've read about the overboost issue, i.e. when your car can't get more than 5 or so psi's, and the car must be shut off to reset the ecu, but this is not my problem, but I was still thinking that it is somehow related to overboost. I'm wondering if my engine is getting enough air. Also, I've thrown no cels.
I welcome as much info. as possible. Thanks, Sam