roadwarrior666
Registered User
Hey all iv a 99 a3 1.8t quattro 180 Whitch I'm having a few issues with. Iv had her since last April and all was well till 2 weeks ago when I started getting a random misfire so assumed coil pack as iv had something similar on my a4 b5 quattro swapped them round but miss stayed the same then a few days later started loosing boost so checked for leaks and can't find any, bypassed the n249 just to simplify things no change it will run fine and boost to .8 bar then miss and only boost to .4 bar .so far iv changed the fuel filter and replaced a few pipes that looked a bit dodgy but didn't seem to be leaking checked plugs and coil packs unplugged the maf and it got worse so don't think it's that dump valves seems ok too so if anyone has any other suggestions I'd be glad to hear them