I have an 05 1.9 vivaro which won't rev when cold. Starts ok and after about 10 seconds will rev then and runs all day perfectly. Changed MAP sensor and pressure boost valve but not solved problem. No codes showing to give some idea as to problem. really getting fed up now. Other than this, the van runs prefectly!!!!

Alun, August 2010

I have the same problem on a 54 plate ex BT van, it won't rev up for 20 odd seconds, the van is driving me insane, I have changed everything MAF, EGR, injectors and various sensors adding up to a small fortune, I have finally given up, even Evans halshaw Vauxhall can't sort it out, any help out there before I burn it

Haydn, April 2016

mine does the same but only for 5ish seconds but when it does rev it is as if the throttle has jamed for about 3 seconds whats that about

craig, January 2011