My Bro's Cav SRi M reg, 2.0 16v Ecotec...
Been drinking alot of water recently, drove off from traffic lights, booted it, all power went as if you took 2 spark plugs out, coughed, spluttered, and just runs completely cr@p & backfires
Also idling cr@p too,
Chugging along at 5-10mph....
Any initial ideas?
Will be going to have a look at it on Saturday for him, will do the usual 'mayo in oil cap' test etc
Any other ideas of what could be wrong?