Hi Guys.
Need your help. My car has lost power, its like when you accelerate it kind of dies then takes off. Sorry if i have not explained it too well. Also my car is using alot of fuel, have to put $25 in everyday and is lucky to get 100km.

I will say and am very digusted in myself, i have not replaced the fuel filter in around 20 to 30,000kms, could this be the problem?.

What i have replaced is brand new leads and platuim plugs oil ETC. Please help

injectors could be a lil clogged maybe ??

injectors could be a lil clogged maybe ??


Hi Mate.
The injectors were cleaned 30,000kms ago?.

Hi Guys.
Need your help. My car has lost power, its like when you accelerate it kind of dies then takes off. Sorry if i have not explained it too well. Also my car is using alot of fuel, have to put $25 in everyday and is lucky to get 100km.

I will say and am very digusted in myself, i have not replaced the fuel filter in around 20 to 30,000kms, could this be the problem?.

What i have replaced is brand new leads and platuim plugs oil ETC. Please help


Fuel filter wont be the problem. Oxy sensor maybe? Throttle Position sensor? Air Flow meter?

Also when i was on the freeway last night comming home i was sitting on 100km and went to overtake and gave it abit and the front of the car started vibrating???.

for the vibrating id be lookin at yur wheel alignment.

there could be many problems causing wat you described. its like u put yur foot down then nothing then it kicks in ?? i had the problem and it was definatly a fuel problem, problems i had was a leak in the rubber in the fuel tank, and another tmie the fuel reg was loose and needed to be tightened

Is it auto or manual?

Is it auto or manual?


its an auto?.

for the vibrating id be lookin at yur wheel alignment.

there could be many problems causing wat you described. its like u put yur foot down then nothing then it kicks in ?? i had the problem and it was definatly a fuel problem, problems i had was a leak in the rubber in the fuel tank, and another tmie the fuel reg was loose and needed to be tightened


I know its not the wheel align or balance as there is not shaking ETC. I have a CV thats alittle noisey but nothing major?.

wen was ur last transmission service?

wen was ur last transmission service?


I had a reconditioned gearbox fitted by Mitsubishi about 25,000kms ago, do you think thats the problem for the vibrating or lose of power?.

OK... things causing poor fuel economy to the extent you describe - fuel leak, fuel tank evap hoses, fuel cap leak. Easiest way to find these sort of things is to either walk around the car and see if you can smell fuel around any particular section of the car. I would also consider taking it to a mechanic to get them to check the fuel pressure to confirm whether there is a leak, and if possible locate it.

The shudder, being an auto, sounds like it would be the transmission itself - most likely related to the drive plate or torque converter. Have you checked the codes on the ECU and TCU? That is one of the first things you need to do to work out the source of the problem. You will probably have to go to a mechanic to get them to check the codes. If there are no codes returned by the TCU, I would check the transmission fluid. The colour should be a slight pink colour, and if it's dark red, has water traces in it or is a slightly milky colour, it needs a change. If there is oil streaks through the fluid or it is black and thick, you have a serious problem with the transmission. If it needs a change, you can get kits from places like Bursons, which include the filter. Get the proper mitsubishi transmission fluid from a mitsubishi dealer, and change it. It is possible that the fluid is worn out and could be allowing the transmission to slip significantly.

Other smaller things to consider with fuel economy, as the other posters above mentioned, is the oxygen sensor, TPS, PCV Valve, Throttle Valve, Idle speed settings, Fuel filters and Injectors. Oxygen sensor you can get tested by mechanic, TPS you just need an analogue multimeter, PCV valves and throttle valve can be cleaned with carby/throttle body cleaner, Idle speed settings I'm sure there are other posts on this site about this process, Fuel filters can be replaced (should be done every year in my opinion) and injectors can be cleaned with injector cleaner.

Hope this is of some help!

Well Guys my car is fixed. I was reading the gregorys manual this morning and checked everything it says too. Checked FPR/TPS/OS/INJECTORS, checked ECU for errors and came up nothing!!
Last thing i tryed was looking for vacume leaks, turns out that 3 vacume hose's were off. 2 from throttle body and another from inlet manifold. Put all 3 back on and has a **** load of power. Dont know if this will help with the petrol problem but will fill the tank and will find out.

Well Guys my car is fixed. I was reading the gregorys manual this morning and checked everything it says too. Checked FPR/TPS/OS/INJECTORS, checked ECU for errors and came up nothing!!
Last thing i tryed was looking for vacume leaks, turns out that 3 vacume hose's were off. 2 from throttle body and another from inlet manifold. Put all 3 back on and has a **** load of power. Dont know if this will help with the petrol problem but will fill the tank and will find out.

good stuff :D
cheap easy fixes are always the best

Well Guys my car is fixed. I was reading the gregorys manual this morning and checked everything it says too. Checked FPR/TPS/OS/INJECTORS, checked ECU for errors and came up nothing!!
Last thing i tryed was looking for vacume leaks, turns out that 3 vacume hose's were off. 2 from throttle body and another from inlet manifold. Put all 3 back on and has a **** load of power. Dont know if this will help with the petrol problem but will fill the tank and will find out.

Having had a vey similar problem, keep us up to date if it fix's your fuel consumption.

Well Guys my car is fixed. I was reading the gregorys manual this morning and checked everything it says too. Checked FPR/TPS/OS/INJECTORS, checked ECU for errors and came up nothing!!
Last thing i tryed was looking for vacume leaks, turns out that 3 vacume hose's were off. 2 from throttle body and another from inlet manifold. Put all 3 back on and has a **** load of power. Dont know if this will help with the petrol problem but will fill the tank and will find out.

How did 3 vacuum hoses manage to come off??? :shock:

I can't see how that many could fall off all at once! geeze