Brain storming
Turbo Mini Forums

had a similar problem on first start up, it turned out to be the ecu only firing 2 injectors on start up there is a seting in megatune for this cant remember what its under will have a look

love that straight cut scream!!!
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It was a combination of the wrong plugs (k100 plugs not K1100 or K1200) and that two injectors were sticking. In fact, after dry running the injectors quite a bit they seemed to come alive, but when run on the fuel rail with pressure, one injector just didnt shut off and poured fuel out, with the injectors off. These were suposedly cleaned and tested, Not! Fitted a couple of spare injectors I happened to have :) tested those and were far better, fitted the correct plugs and it fired on all four, all be it a bit rich, and a blowing manifold, but it runs. He just needs to get it set up correctly and dyno'd.

It has been an interesting but un necisary excersise

turboestate pretty much hit the nail on the head :) And James_H was a close second

Thanks for the ideas chaps.

Edited by Sprocket on 15th Sep, 2008.

to be fair the injectors may have been cleaned. Several of the injector cleaners state that they advice that the injectors should be used not long after cleaning, or else they will stick due to the nature of the cleaning medium. This happened to me when I had the MPI injectors on the shelf for a few months, I had to tap them with a screw driver to make them come alive, only one squirted in the beginning.

Pleased you sorted it mate took me ages to figger out mine was very lumpy on first start but then ran fine just by chance i felt the exhaust and found only two hot then went looking LOL the thing we learn

love that straight cut scream!!!
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/___|_____
_ (@)___(@)

Yhats what you peasants get for using second hand injectors!

Was about to suggest new plugs as it sounded like you were blowing the spark out.

Glad you got it sorted.

Own the day

lol