Hi Guys,
I have had my magna for 12mnths now and it has been a workhorse. Lately I have done quite a lot of km and just last Monday (22nd) got her fully serviced and checked over. Got some new leads and plugs (the engine was missfiring). And got a small list of other fixes (not engine related). I was also told there is a tiny leak in my gasket but not enough to cause a huge deal of concern to be replaced right away. (It does not leave oil stains where I park it)

Well just today I was doing my normal drive to work and suddenly the "Check Engine" light comes on. Never had this before so I am thinking "what could this mean" and should I pull over. Well I was only about 2km from work so I switched off the aircon and 20 seconds later the light went out.

Does anyone have any idea what triggers the engine light to come on???

Cheers Bruce

What modle magna u got??
im guessing it my be low oil or overheating.

Its a Magna TR 93 Auto.

The temp never rose when the check engine light was on. I had the car serviced last week so I can't understand why it would be low on oil if its not leaking majorly.

Am not sure at all. Is a bit of a stress as I have a long way to travel everyday to work.

Check engine usually comes on when the ECU detects a problem with one of your EFI sensors or other electronic gizmos or associated wiring..
Ive had problems with the barometric pressure sensor wiring on TR's (the one sensor connected to the air intake)
if they pressure cleaned your engine bay sometimes water gets blasted into the connectors and makes it loose connection temporarily.
If you have access to a service manual the procedure is in there to read the error code from the ECU - that will tell you what sensor is playing up.
Guru

go to mal's site he has the code's
http://madmagna.atspace.com/tech/diagnosticcodestrts.htm

Thanks guys will try those out. It came on twice again this morning for about 20 seconds each time. Will let you know how I go.

Cheers Bruce

Looked at Mals page and its a big help. Although the wording (below) on mal's site confused me. Do I not use a conventional bulb? And where do I get an LED test light from?

"To check these codes you will need a LED test light. Do to use a conventional bulb as it will draw too much current and may damage the ECU. As always it pays to have an inline fuse should you make a mistake in connection."

Cheers

You can get one from dick smiths, or
*dont quote me on this"
you just buy a LED and put the led leg on one of the connectors and put the other leg on the other one.

LED test lamps are easy to make. Get an LED, some wire, an alligator clip and some heat shrink tube. That should cost you about $1....
Solder two wires onto the LED terminals. On the short LED terminal, solder the alligator clip onto the wire. On the long LED terminal, strip about 25mm of insulation off the wire and solder the wire so it's a solid probe.
One LED test lamp. An LED ALWAYS has the longer leg coming out of it as positive, if you wire it up wrong, it will not work, but won't harm anything.

Regards, Andrew.