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tdi turbo bost loss
Posted: Thu Mar 03, 2005 9:38 pm
by jditto
I have a 98 jetta tdi that I has the following problem. If the engine is cold and I start the car the turbo works just fine. If I shut the engine off and then restart the engine the turbo will kick out at about 2200rpm in 5th gear. I have replaced the engine control module ($20) and I just replaced the mass air module ($100.00). I still have the problem. any ideas.
Posted: Thu Mar 03, 2005 9:40 pm
by coke
Check your intake for soot buildup and EGR valve for proper operation,
checks
Posted: Thu Mar 03, 2005 11:50 pm
by subiemech85
restricted exhaust, defective boost controller, broken wastegate system
Posted: Mon Jun 06, 2005 11:57 am
by Neb
Yeah.. look at those sugestions. Broken waste gate might be a higher possiblity since I see that alot in the forums.
I have a 2002 jetta A4 engine. Same issue. Replaced the MAF. I can unplug the MAF and I still get better power. Go figure. With the A4 you don't have a waste gate but vacum hoses. If they are plugged you get no power.
Since you have a waste gate it might be sticking, since its more like a valve.
Either that or you need to feed the Gerbal more often.
