Just tried the new Bearmach Hawkeye diagnostic unit on my P38 2.5 diesel which runs like a sack of _hit over 20 mph and it shows two fault codes , where can I get more info on these two particular problems regarding rectifying them,they are as follows,
`FAULT CODE 136 NEEDLE LIFT SENSOR` (dose this mean injector no4 needs changing?)
`FAULT CODE 15 CONTROL MODULE SUPPLY VOLTAGE` (ECU has a fault?)
Any advice appreciated.