Hi all i have a audi a3 1998 1.8t engine code agu
Right the car just started to missfire so i pulled the plugs on the coilpacks and no3 did not do anything so i went and brought a new coilpack fitted that, only to find the misfire is still there.so i went and purchased a new ignition control module from allparts fitted this to find the misfire is still there but now is on cylinder4 i have checked power coming out of the module on all 4 with the car running and they are all at 14volts and the same upto the coilpacks,also checked the earth which all seems fine,If i put the test light on the positive terminal on the battery and put on the wire from the module to coilpack on 1,2,3 the car goes to die but on number 4 does nothing could it be a faulty ignition module or possibly a ecu fault anyhelp would be really helpful as i have tried everything i can think of even start to check all the wires in the loom and still nothing
Right the car just started to missfire so i pulled the plugs on the coilpacks and no3 did not do anything so i went and brought a new coilpack fitted that, only to find the misfire is still there.so i went and purchased a new ignition control module from allparts fitted this to find the misfire is still there but now is on cylinder4 i have checked power coming out of the module on all 4 with the car running and they are all at 14volts and the same upto the coilpacks,also checked the earth which all seems fine,If i put the test light on the positive terminal on the battery and put on the wire from the module to coilpack on 1,2,3 the car goes to die but on number 4 does nothing could it be a faulty ignition module or possibly a ecu fault anyhelp would be really helpful as i have tried everything i can think of even start to check all the wires in the loom and still nothing