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Not Starting/Main Relay Issues
Posted: Wed Dec 24, 2008 9:25 am
by daffyflyer
Got an intresting issue with the new 5 (will post thread about the new car, and some pics soon)
Ok, so it wont start,And if you pull a plug you'll see it has no spark.
If you remove the main relay and replace it with a section of wire bridging 2 of the pins, it will start and run fine.
But you replace the relay with a shiny new relay, it still doesn't start.
Im thinking the issue must be in the wiring behind the relay, as it doesn't happen when you only use 2 pins.
Any ideas of what to check? Id like to do all i can before emptying my wallet for a sparky..
Not Starting/Main Relay Issues
Posted: Fri Dec 26, 2008 1:50 pm
by daffyflyer
Yep, Id be running in terror too, damn auto electrical stuff
Not Starting/Main Relay Issues
Posted: Sat Dec 27, 2008 12:02 pm
by 93_Clubman
I'm no auto electrian, but what you're doing, amongst other things, is possibly allowing more current &/ or voltage through, which can in itself be a problem. If this is the case, may be it's having an affect on another electronic component, so it may be more than wiring.
Btw, have you checked if Fuzz had this problem before?
Not Starting/Main Relay Issues
Posted: Sat Dec 27, 2008 12:05 pm
by Fatty
clutching at straws here but i'd suggest just checking with a multimetre at various points along the wiring to make sure you have continuity. it may just be a broken wire somewhere?
Not Starting/Main Relay Issues
Posted: Tue Dec 30, 2008 3:37 pm
by Fuzzlet
Car never had this EXACT problem before, however it did have issues with broken wiring between the stereo and the speakers, so it may be a similar problem
Not Starting/Main Relay Issues
Posted: Wed Dec 31, 2008 2:47 pm
by daffyflyer
Ok, thanks for the advice guys, will take a poke at it with a multimeter and see if the wires are actually attached to each other
Not Starting/Main Relay Issues
Posted: Wed Dec 31, 2008 3:20 pm
by daffyflyer
Also the mechanics who did the rego inspection flattened the battery, which killed it (wont hold a charge anymore)
And it failed rego on (aswell as rear tyres worn) insuficcant headlight pattern (LEFT).. im not quite sure what they mean by that. they said it might be a bulb blown (might be? it either is or isn't and having looked at it both the lights WORK
), Im just going to point it at a wall with the lights on and make the left look like the right, however that might be!
Anyway, thus endith the rant, and other than that I <3 my MX5 and never do less than the speed limit around roundabouts since i bought it
Not Starting/Main Relay Issues
Posted: Fri Jan 30, 2009 9:41 am
by daffyflyer
Fixed, turned out to be the relay, even though another mechanic had tried replacing it... dubble you tee eff?
Not Starting/Main Relay Issues
Posted: Fri Jan 30, 2009 10:01 am
by Jeo
Good to hear.
How long till rego then?
Not Starting/Main Relay Issues
Posted: Fri Jan 30, 2009 11:10 am
by daffyflyer
Already passed (complete with missing relay
) whoo!
Going to the track day next month Jeo?
Not Starting/Main Relay Issues
Posted: Fri Jan 30, 2009 10:29 pm
by 93_Clubman
good to get rid of that persistent but elusive problem