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Discussion Starter · #1 · (Edited)
this van revs fine hot or cold at first for around a minute perfect then all of a sudden will only rev with real light thortle pressure till it hit around 2000 revs then it seem fine again if you put it down flat qickly it will back fire in air box but timming is good so are plugs and leads even changed fuel pump still no go any thoughts people :(
 

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Sounds like vacuum leaks in the intake system. Check IAC etc. as well.

P.S. I just love your spelling; "Thortle" cheered up my day immensely.
 

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Discussion Starter · #3 ·
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thanks i checked all possible spots for air leaks all good new manifold gaskets and orings i just replaced my tp sensor maf sensor and iac sensor :) its seems pretty good now i can rev it no back fires and use full throtle now .it just seems to have a ever so little miss still hardly noticable at all just on first press of pedal i think i can live with this if it drive ok . p.s iam clad i cheered you up with my hopless spelling lol :) and thank for the advice . mark
 
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