Hi. I have purchased a 2003 citroen xsara picasso 2.0hdi that stalls at random times and stutters a bit before stalling. I've connected a diagnostic reader to it and it comes back with a fault p1352 ignition malfunction a primary coil. Could this be the reason I am having problems? Citroën want £119 to plug a diagnostic machine in. Any advice would be helpful. Thanks