qustion what dose blow by feel like when you are driving a car that might have it?

 

you won't really feel it.... when it's get's really bad the car will feel underpowered and smoking out the back.

 

i figured that but there is no smoke....but the car is feeling like it is hessatating(sp) when it starts to get in to boost....i am about to go check for boost leaks....it is a 90 talon tsi

 

Might be tuning, might be a sensor problem. There are a few things that can affect that, MAF/MAP sensor, TPS sensor, a few other things.. On a car that old it's likely a sensor.

 

Plugs could be gapped wrong also...

 

plugs are fine....if it was tps or map wouldn't there be an idle problem? i checked for boost leaks there were none but i did blow my down pipe gasket and i think that might be causing the problem i have had it happen before and it did a simular thing...