Wont Start Will Start

[Guest anneheather]

My 53 plate berlingo 2.0hdi as recently started playing up, done 154+k miles not a prob. Recently had new spare key cut and re programmed, and had service. In the last 4k miles it as failed to start on four occassions.

First time, turn over but not start, swapped from old key to new key started and fine for a few weeks had second occassion would not start with either key transported van to garage were it started every time, Third time would'nt start trailred to dealer and started every time.

Local Garage and dealer have done a code read and the following are present:-

Permanent fault, Injector control Fault code P1641

Intermittant fault, Injectors control Fault code P1197

Permanent fault Pre-Post heater relay circuit Coherence.

Dealer also remarked at possible leak from fuel filter housing and slow starter motor although fuel pressure at cranking ok.

Van now starting and running but we've not solved anything ( after £80.00 p/hr)just waiting for next time it wont start. Dealere as re-coded keys to ensure immobiliser is not causing the problem and want to fit new injectors at £333.32+VAT PER INJECTOR.

Any help or advice appreciated