Technical punto gt2 no power off boost

[punto16v]

hi there i recently bought a 1997 punto gt2 wit 60k on the clock since i bought it the car has absoulately no power when under 2500 rpm and also has a misfire when 1st started in the mornings any ideas wat wud cause this ?????:bang:

 

[MikeSalt]

Do you have any recent service history? That may give us a better idea what may be the issue. Otherwise, probably best to do a quick service yourself including oil, oil filter, air filter, spark plugs and HT leads. The latter two will probably fix your issues. Put a drop of the 97 RON jungle-juice in it to give the fuel system a good clear-out.

Since you have a GT now, can I call you punto8v instead ?

 

[punto16v]

Do you have any recent service history? That may give us a better idea what may be the issue. Otherwise, probably best to do a quick service yourself including oil, oil filter, air filter, spark plugs and HT leads. The latter two will probably fix your issues. Put a drop of the 97 RON jungle-juice in it to give the fuel system a good clear-out.

Since you have a GT now, can I call you punto8v instead ?

hi there im jst after changing the spark plugs and oil+filter its running a bit better but not as it should do it has a after market air filter on it wit and a dump valve some people are telling me that they give injector problems is this true ???? i suppose u can call me punto 8v

 

[MikeSalt]

How new is the after-market filter? Is it a reusable one that you can wash and re-oil?

 

[punto16v]

hi there it is a washable filter but it is clean at the moment

 

[shawzy]

hi there i recently bought a 1997 punto gt2 wit 60k on the clock since i bought it the car has absoulately no power when under 2500 rpm and also has a misfire when 1st started in the mornings any ideas wat wud cause this ?????:bang:

water creeping into the bores overnight?hows the coolant level?.ad

 

[punto16v]

hi it doesnt seem to be losing any coolant at all thats what i checked 1st as i thought the head gasket when i first got it but no pressure build up or over heating r anything of the sort lyk any other ideas wud be much appreciated thanks :bang:

 

[dageneral]

do a blink test.

 

[DaveMcT]

Is there a pressure sensors to regulates fuel flow in boost and non boost conditions.

 

[punto16v]

Is there a pressure sensors to regulates fuel flow in boost and non boost conditions.

i dont know im not to sure about the gt engines where would it be located do you know ???

 

[DaveMcT]

I dont have the foggiest clue, it was a suggestion for things to look at. The inlet manifold will go from vacuum to pressure depending on boost & the ECU has to accommodate all that change. I would certainly check the boost pressure sensor and rig up a boost pressure gauge so you can see what's going on.