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vinnie

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Since: Nov 26, 2005
Posts: 1



(Msg. 1) Posted: Sat Nov 26, 2005 1:55 am
Post subject: mitsubishi evolution 1
Archived from groups: alt>autos>mitsubishi (more info?)
hi can anyone help me i have a evo 1 a great car and really fast but when driving it on the top end it seems to hold off and loose power but when i take my foot off the accelarator and replace the power it starts all over again please can anyone help me ........ Very Happy thanks

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Stewart DIBBS

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Since: May 02, 2005
Posts: 313



(Msg. 2) Posted: Sat Nov 26, 2005 5:40 pm
Post subject: Re: mitsubishi evolution 1 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
"vinnie" <vinnie RemoveThis @echoforum.com> wrote in message
news:4387fa23$0$7718$6cceaf45@news.echoforum.com...
> hi can anyone help me i have a evo 1 a great car and really fast but when
> driving it on the top end it seems to hold off and loose power but when i
> take my foot off the accelarator and replace the power it starts all over
> again

OK, it sounds like you lose power soon after hitting the top end, and
backing off, then on restores the power. This is pretty typical of loss of
fuel pressure. This can be caused by several things.

a) your fuel filter is blocked .. replace it.
b) the fuel pump is cavitating ... try with more than 1/2 tank of gas.
c) the fuel pump is leaking inside the tank. There's an O-ring that
sometimes fails and causes loss of fuel pressure. Easy to fix but taking out
the fuel pump can be a bear.

Other issues to look at ...
d) The ECU is tripping the fuel cut-out / rev limiter. Sometimes caused by
O2 sensor or MAF sensor problems.
e) the turbo is losing pressure somewhere. Look for turbo hose leaks eg the
blow of valve, intake.
f) wastegate is flapping: check the WG solenoid arm is connected to the WG
lever.

Stewart DIBBS
www.pixcl.com/lancerproject.htm

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hassan25

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Since: Nov 27, 2005
Posts: 3



(Msg. 3) Posted: Sun Nov 27, 2005 6:51 am
Post subject: Re: mitsubishi evolution 1 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
hi i have just read your reply to the problem the other guy was having with
his mitsubishi regarding loss of power on high rev. Boy that was great, you
have just save me £300 on my car.
But i have another problem on a mitsibushi GTO. i do not know if you can
help with that. the problem is that it is burning fuel exesively to an
extent that you can smell the fuel coming out of the exhaust.
i have not driven it since then.
this problem stared since i got the injectors tested. but befor that it
was driving fine.
i do not know what to look for at this moment. hassan
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Simpleton

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Since: Nov 14, 2005
Posts: 15



(Msg. 4) Posted: Sun Nov 27, 2005 8:51 am
Post subject: Re: mitsubishi evolution 1 [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
Did they put the same injectors back in? Often when you go to get them
cleaned, the injectors are exchanged for ones that have already been
serviced. It is conceivable that a higher flowing set (beyond the ECU's rage
of compensation) were installed. That , or dirt-varnish could be hanging the
injector open causinging it to flow when ever the fuel pump is running.
Either is VERY BAD. This excess fuel will contaminate your oil and can ruin
your entire motor; washing oil from the cylinder bores and bearings, even
melting your exhaust catalyst
Is your oxygen sensor functioning properly; no codes from a failed sensor?
"hassan25" <hassan-muhammed.TakeThisOut@nospam.hotmail.co.uk> wrote in message
news:48e17dc93ddf4626af5231ba7c594c71@localhost.talkaboutautos.com...
> hi i have just read your reply to the problem the other guy was having
> with
> his mitsubishi regarding loss of power on high rev. Boy that was great,
> you
> have just save me £300 on my car.
> But i have another problem on a mitsibushi GTO. i do not know if you can
> help with that. the problem is that it is burning fuel exesively to an
> extent that you can smell the fuel coming out of the exhaust.
> i have not driven it since then.
> this problem stared since i got the injectors tested. but befor that it
> was driving fine.
> i do not know what to look for at this moment. hassan
>
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