My 3 year old Mitsubishi Space Star engine warning light has come on. It
was intermittent to start with (over about 2 weeks) - now its on
permenantly. However the car drives faultlessly and I can't see any
problem whatsoever! Any advice before I take to the dealer and they
charge me £50.00 to say there is nothing wrong with it?
I am pretty sure it is the oxygen sensor heating element ,Not to critical
but it will cause the light to stay on.
The only way to be really certain is to get the workshop to plug in a
tester, should come up with PO135 ,If so then the
Only solution is to change the sensor
Don't know what a Space Star is but, it seems that I have had the same
problem with my 02 Eclipse GT. After MANY trips to the dealer where I was
told there is no problem other than the cold air ram system I had installed
(BULLSHIT) and if I bring the car back for the same problem, I will be
charged 50 bucks for each time, I now find out that there is a TSB issued
for the problem and that the dealer has a new FLASH program for the ecm.
The code I was getting was a P0300-P0306, random misfire.
This TSB only applies to certain V6 engines with specific engine
numbers. Hope that this helps you. Also, you may want to invest in a OBDII
reader so you can avoid a hefty charge, read the code, decide if its
important and erase it.
Many thanks for that advice. I'm not sure where the oxygen sensor is but
as a precaution I checked all the connectors in the vicinity of the air
intake/manifold. I unplugged the one at the top and plugged it back
firmly. Guess what! When I started the engine, the light has gone out!
This problem started soon after my last service (now out of warranty)
Makes you wonder doesn't it?
The oxygen sensor is located on the Exhaust manifold ,Right at the front of
the engine .It has 4 wires coming out and they go to a plug on the left
Take the battery pole off for 30 secunds and you will reset and remo0ve all
fault codes on the egine ecu.
The engine management light when on cuts the power down slightly it's often a
plug lead or lambda sensor BUT A GOOD CHECK WE DO ON THE EARLIER MODELS IS TO
OPEN THE FUSE BOX . TURN IGNITION OFF ! REMOVE FUSE WITH ENGINE MANAGEMENT
PICTURE ON. TURN ON IGNITION NO LIGHT ! NOW PUT THE FUSE BACK IN ! UNDER THE
BONNET YOU WILL HEAR IT CLICKING AS IT RESETS ON THE VARIOUS SENSORS IT ALSO
OFTEN FLICKERS ON THE DASHBOARD LIGHT LEAVE FOR A MINUTE ! TURN OFF LEAVE FEW
SECONDS ! START UP AND IT OFTEN WORKS CORRECT AGAIN !!! THE BEAUTY OF THIS IS
YOU DONT RISK LOSING THE RADIO CODES BY DOING IT ON THE BATTERY !!! XX
Far better way is previous reply and you wont lose the radio code .
1/ switch ignition off
2/ remove engine management fuse unit ( often 20A) in the fuse box ! The light
on dash will be out
3/ put fuse unit back in after few seconds and switch on ignition
4/ you will hear a few clicks under the bonnet and light on dash will probably
flicker as it resets on all the sensors
5/ After a minute turn ignition off wait few seconds then start car it is reset
The problems we often come across that seem to cause the light coming on first
place is plug lead problems / plugs and lambda sensor ! Always try RESET first !