heebee

97 e 420 was running great then started running rough got worse and worse now it won't get out of it's own way ... starts and runs very rough... but not driveable, no power ... if i rev it the check eng light starts flashing if i let off it stays on but stops flashing.... code reader says po300 p0305 p0306 p0307
p0308....anybody got any ideas .....

ohlord

have a blocked cat converter on bank 2.
Or a vacuum leak.
Check both

heebee

how do i go about checking for a blocked cat???