leads827

My 2001 s4 suddenly started shaking/vibrating when accelerating esp between 2000 and 3000 rpm, rolls smoothly when coasting, the vag com shows the following codes: p1176, p1177, p0300, p0301, p0305, p1453, p1457, p1548. Any help will be much appreciated

johnkk

You have misfire, exhaust temp sensor, and N75 codes. I'll bet EGT and N75 are on the fritz.

First, I would warm up the engine and then pull the MAF (Mass air flow) connector and see if the shaking goes away. MAF's can cause all sorts of issues. Just do this to rule out MAF.

Then, check the N75 resistance. Check connection and wiring. Search N75 test for info.

Do a search on egt sensors to see if there is a test. When they go bad, you can get these symptoms. These are expensive and driver side a PITA to swap.