Ok here is the deal
Model 1988 GTI 16V [USA]
On Sunday evening I sanded some of my throttle body down, took the 4 plug wires out and intake boot off. Sealed everything back up started her up she would stumble and sound like a miss, car wouldn't stay alive unless 3/4th's gas. Car would die if foot off gas
Monday my mechanic [Lothar] replaced dist cap-rotor both of them were burnt up and spring as well, pulled plugs they were black as hell, which leads me to believe that my mixture was off. I had hooked Julia up to the multimeter and got a reading of 11 and maybe that whole time the reading was off cause of my OXY sensor?
Why my fuel mixture was off was could be because of my OXY sensor, he pulled it both 2 wires in the sensor itself were sheared, replaced the sensor/oil change-filter/fuel filter change/replaced spark plugs.
Car started up fine; he then tinkered with the fuel mixture trying to figure out why the car sounded like it was missing maybe it was too rich maybe it was too lean.
About 3 months ago I had my airflow meter housing drilled out, he found metal shavings on the sensor plate, and he cleaned them up.
So we go to today I get their, they took the car around the block car was fine, I took the car out 1st gear shift to 2nd gear, go WOT 5k rpms hear a loud BANG, followed by blue smoke out the exhaust a ton of blue smoke, coasted down to a halt. At idle the car would smoke, as throttle increased blue smoke would increase. Now onto something’s to figure out why we have blue smoke, and why my car is down on power.
Ran a compression test
215/210/215/210 across the board
Spark plugs-ok color light brown
Oil level ok
Water ok, no backpressure coolant
New oxy sensor/fuel filter/fuel mixture set in the ballpark.
Head gasket small leak to outside rear of engine.
Took a fiber optic scope and found some shiny pin mark impurities on piston top 3, piston tops are dry no oil.
About this crankcase ventilation breather hose, does this thing use a valve for pressure release, what if that valve busted and oil is now being sucked through the manifold but then again the pistons are dry?
So basically I am asking, and he ask's to figure out maybe brainstorm what happened, and where to look for now, I will be printings this out and giving it to him. Who knows maybe this is the end of Julia I sure as hell was blessed with a freak for the past year though.We talked for hours and still have no friggin clue what the fudge is going on?
Edit as of now car starts up FINE, car REVS up FINE. Thing is she smokes like a bitch, what the fudge was that loud bang, and the car seems down on power as well wtf
[Modified by Blitz16v, 10:20 AM 2-14-2002]