Is it possible that lengthening wires to the ECU can mess up the resistance that much that the ECU is unable to send a signal to the coil to spark?
Hi, recently I have lengthened the wiring on my bmw 525i from 1989 with the m20b25 engine.
However now it will not start. I have only lengthened the wires to the ECU. The engine cranks over and I can hear the fuel pump buzzing during cranking. Main relais and fuel pump relais are good. Cps checks out fine and the coil is good aswell.
There is no spark getting from the coil to the distributor. I have heard trouble when lengthening wires from the ECU. Is it possible that the resistance from the coil - to the ecu has changed in a way that the ECU is unable to send a signal to make the coil spark? I have only lengthened the cable by about 30 cm?
W. Van den kerkhof
Tuesday, August 21st, 2012 AT 2:00 PM