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Re: Problem with my fiesta mk4 (stalls and nearly stalls etc)
hi, i have a fiesta 1.3 efi and had the same problems, which i had done everything, the idle valve, plugs-leads, tappets everything and still to no avail! till i took off the air pipe to the throtle valve, i found that the butterfly vv was so dirty that it was that making it stall or go to stall, used a full can of carb cleaner! first soaked the butterfly and left for 5 mins, then with the engine running reved her up while spraying inside the butterfly, you should have seen the s--t come off the plate! refitted the pipe and took it for a drive, instant improvement! and it dont stall or go to stall now ether! as some 1 told me, with all this efi bolux there is still 4 pistons in a block going up and down in there, good luck!
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) I decided to go through my checklist again. I had bought new spark plugs a few months earlier. Prior to fitting the new plugs I had not checked the electode gap. I decided to check the electode gaps and found that they were all near 0.7mm. On the 1.3 engine the gap is supposed to be around 1.1mm. I made the adjustments and the car has not misfired or cut out once. The fuel economy has also improved dramatically. 
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