Technical Spi UNO cutting out

[Phill98765]

After 10 mins my UNO cuts out and the noun revs by itself not much just wavers around it all darted when I jet washed the engine last week have replaced the coil but still same problems after ten minutes it loses spark and dies have dried every lead and plug but still the same please help I'm dreading the drive into work now as it cuts out in exactly the same place every day

 

[Phill98765]

Also when driving if it cuts out sometimes comes back to life after a few second have I fried the orcould it be the tci unit on the dizzy

 

[johorridoh]

Butterfly valve sensor is often the troublemaker.
Replace the SPI unit with a working one.

 

[a73uk]

Its a bit unusual that it coincides with the jetwash, might be worth going round the inside of the dizzy & cap with an airline, the dizzy connectors, temp sensors & coil too.

Is the ignition light coming on at all, even dimly, maybe just before it cuts out?