hi i recently fitted a 3.5 v8 to my 130 , every thing ran fine for a short while ,
now it is very poor at starting just spins over . when it dose start it runs and goes fine .
If i disconnect the engine coolant temperature sensor the <one behind the easy one> it starts up first go but runs terrible .
Coil ,plugs fuel filter all new ,swapped coolant temp sensor no change . I have taken it to two garages with no luck as yet one said the fuel pump is running at 2 bar he said it should be higher he thinks that might be the problem . HELP
thanks for any advice given .