Posted by Tony Ludford on March 30, 2007, 8:31 am, in reply to "X reg Primera 1.8 16V"
Throwing a spanner in here:
Could pre-ignition cause this fault? Imagine it's firing to soon BTDC would it not almost stall the piston, causing the crank to slow down and slackening the chain?
Could do with slowing it down, to see if crank signal slows before cam signal