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I loss my rev counter and power when car is slitely warm?

My vaxhall dti 20 litter Boise ok in morning when I start it but when it gets slightly warm I lose power plus my rev counter stops working I have changed the air flow meter and the froughtel peddle and it still does the same
Mr William. Taylor, February 2014
Crankshaft position sensor. Replace it with a new one.

http://www.vauxhallownersnetwork.co.uk/index.php?threads/zafira-fault-lights-no-rev-counter.184160/

Follow the tip about the cooling pipe bolt in post 6 to ease access. Will save you time.

ChicksFan, February 2014
link Click here to see other fixes for Vauxhall DTI 20.