I'm at my wits end trying to fix this car. It stared some 3 weeks ago with a misfire. Then it got worse and the in the last week started blowing white smoke and fuel coming out the exhaust. We changed the fuel filter, the plugs as its done 210k(timing belt not yet done as I'm trying to get it running to get the belt done).Codes showed error with MAF,Atmospheric pressure sensor, and intake temp sensor.SO changed the MAF, changed the dist. cap and rotor and leads. Still runs crap and blows white smoke. Had a look at the injectors as fuel had started coming out the exhaust.(I know it was fuel as I lit the wet spot on the floor with a match and it lit up).Ok stuck injector. Pulled the old ones out and they were filthy with a rust coloured substance in the fuel rail.SO today I pulled out the fuel rails and cleaned them, I put air pressured in the tank and the fuel looked perfect that ran out of the hose that connects to the injector rail.I put another set of injectors on(from a friends smashed car that was running ok until the prang. And presto, it ran great(blew some smoke and was getting less-I thought from residue in the exhaust system, and whammo 1 hr later back to square one. Running rough with white smoke. Oil is perfect, coolant is perfect and neither is going dome with no cream anywhere. Any ideas as next step is take it down to Mitsubishi and go bankrupt.After posting this I found some info about oxygen sensors . Could this be the problem?

if you can get your hands on an oxygen sensor from someone with a magna/verada to test out, there's no reason not to give it a whirl.

Get the cooling system pressure tested.

Thanks for your advise. MadMax , do you really suspect a cooling system issue?. No coolant level drop, and the smoke (definitely not steam, but a very light fine smoke smells very fuel/oily . Just lots of it. Less
when idling but heap when revved.

Ive had white smoke come from the back of a car once. I overfilled the oil.

catch some of the smoke in a white rag, have a good look, smell. Perhaps your fuel tank has lots of water in it, and your car is trying to run on petrol and water mixture?

I will give it a go . The smoke smells sort of oily . Any ideas on draining the tank completely without removing the tank . Maybe though the opening located under the back seat some how . I just seem to have a gut feeling about the quality of stuff in the tank , after the dirty looking injector rails and injectors.

Max, please don't start head gaskets again FFS


Op, classic contaminated fuel, have seen top many times. Pull your fuel pump check inside the tank. Usually we replace everything from the tank to the injectors

Max, please don't start head gaskets again FFS


Op, classic contaminated fuel, have seen top many times. Pull your fuel pump check inside the tank. Usually we replace everything from the tank to the injectors

Read post #6 Mal. No mention of head gasket, I'm suggesting fuel contamination, before you did. So what was the point of your post, other than another putdown?

Thanks everyone.Ok.Assuming it is bad fuel.Is there a easier way to drain the tank,than dropping the tank out.

Does the smoke have a sweet smell to if it does could be the head gasket, is it over heating or stalling at all?

Siphon as much of the fuel out as you can, if you use clear containers you can get a visual on how contaminated it is.
Dropping the tank is the only way you will be able to get any rubbish off the bottom. Give it a good flush with steam or water, then look at the bottom to see if it is clean. Make sure it is perfectly clean and dry before you put it back in.

Old fuel - if it has water in it, let it settle and pour the petrol off the top. Use in your lawnmower, not the car.

Havent had chance to drain the tank yet,but I have removed all spark plugs and 4 out of 6 were completely black and looked fouled up.So I have cleaned them as much as possible without damaging the iridium ones,and I have anew fuel filter(again),and I am looking at draining the tank this weekend.Do we still think contaminated fuel was the culprit?

Still got the old fuel filter? Cut that open and you will soon see if your fuel is contaminated.

If the filter is clear, perhaps one or more of your injectors is/are leaking? Get them all tested, seeing you have 2 sets, just use the best ones. Maybe new "O" rings on them?

O k, disconnected the fuel lines from the pump and the injector rail. Removed the fuel filter and removed the back seat and the fuel pump. Used high pressure air to blow fuel and crap from the pump end to the filter end. Used high pressure air to blow fuel and crap from the filter end to the injector end. Cleaned the pump pick up bag as it was full of a red creamy stuff. and submersed the pump in clean fuel and drained it out. Syphoned just about all the fuel from the tank and removed about half a handful of red muddy creamy crap? . Put new fuel filter on and put 20 litres of 100 octane fuel in . Started it up . Ran for about 30 seconds ok then it was back to square one. Just by fluke I removed the fattish hose that goes from somewhere under the inlet manifold to just before the throttle valve and notice oil coming out of it. Had a look in the throttle body and its full of oil. This is obviously what is fouling the plugs and injectors. I pinched this hose shut, but no change. I think the plugs are fouled again. I don't have the time today to take the inlet manifold back of and investigate this hose. Could it be a PC valve on the other end that's stuffed, or something more deadly that's allowing oil where it should not be?

That hose is part of the PCV system. When everything is working correctly, filtered air flows through both valve covers and is sucked into the inlet manifold via the PCV valve. If the PCV valve, valve cover baffles, or any of the three hoses making up the PCV circuit are blocked then fumes and gunk can flow the wrong way, fouling the TB etc. and this will be particularly bad if your rings are a bit worn and there is more pressure in your crankcase. The hose you identified is the first in the circuit, supplying filtered air to the rear valve cover. There is a second hose running from the rear to the front valve cover, to the right of the engine (passenger side). The third hose runs from the left side of the front valve cover, via the PCV valve, to the manifold. Inside each valve cover is a series of baffles designed to prevent oily muck flowing through this system, these can also become blocked.

I'd eliminate rings as a problem before doing anything else with a compression check. Assuming they're ok, remove both valve covers and all three hoses, and see if they are clear. If not, the hoses should be replaced and the valve covers can be cleaned out with degreaser, and get a new PCV valve (Repco do them for about 20% of the OEM price, as far as I can tell they are otherwise identical). While you've got the plenum chamber off you can give the TB a good clean out (Madmagna's done a tutorial on this, search should find it).

EDIT: Not suggesting this is the cause of your original fault, btw, but can cause smoking (usually blueish, not white) and sounds like it needs doing in any case.

Another update. Injectors leaking. Sump full of fuel, so start from scratch, and guess what, you are a legend. MADMAGNA....you were right way back a few posts ago. I dropped the tank and cleaned it out. Pumped fuel through the lines and high pressure air. Changed the filter for the 3rd time and got 6 injectors serviced and cleaned tested and cleaned out the pressure regulator as well. RUNS like a rocket with no issues. Also for anyone in the western Sydney area. Penrith EFI on 0247228600 is great. He has been around for years. He is honest and knows his stuff and he is reasonable in his prices. He charged $33 per injector including GST and I dropped of 12 injectors, he tested them all and he did the 6 best ones and gave me extra o rings in case some leaked for the price of 6 . Support this guy if you are a local. Thanks for your help everyone. The GTV lives another day