Thanks Jim, Do you think I should try the reset before unplugging the MAF ? And how long does the battery need to be disconnected to reset the ECU? Many thanks Trevor
On Wednesday, 29 August 2012 15:13:31 UTC+1, Jim Hearne wrote: > Try driving it with the MAF unplugged. > It should drive pretty much as well as it does with it connected. > > If you reset the ecu make sure you do it with the engine cold, then just > start the engine and leave it idling until the cooling fan cuts in. > If you start reving the engine or driving it while the ecu is relearning > it can get rather confused. > > Jim > > > *From:* Critter <javascript:> > *Sent:* Wednesday, August 29, 2012 2:53 PM > *To:* [email protected] <javascript:> > *Subject:* [Quantum Owners] Hesitation on acceleration > > Hi All, > > I am experiencing a judder when accelerating away from cold on partial > throttle, including when the outside temperature is mild but the engine is > cold. This only last for approx 200 yds (M) If I floor the throttle the > car pulls away fine. I just look an idiot either pulling away from home > like a kangeroo or like a boy racer. > > When the car is warmed up, acceleration is great from partial to 7/8ths > open, but if I open up full throttle it feels like the engine is holding > back, but not miss firing. i.e. Hesitant. > > I have swopped the Idle control valve for a good spare and also the > throttle position sensor for the same. > > I was thinking of disconnecting the battery to reset the ECU but any other > suggestions? > > The car is a H4 with a RS1800 zetec all currently standard. > > It has done this for a few months now and I have bought fuel from various > garages so I don't think its fuel and as the cold fault disappears when its > warm I don't think its a loose connection. > > Any suggestions would be gratefully received. > > Kind regards > > Trevor > -- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To post to this group, send email to [email protected]<javascript:> > To unsubscribe from this group, send email to > [email protected] <javascript:> > For more options, visit this group at > http://groups.google.com/group/quantumowners?hl=en > > IMPORTANT NOTE: All information presented herewith is provided on an "As > Is" basis, without warranty or the implication thereof. Neither the Quantum > Owners Club nor the individuals associated with the Quantum Owners Club or > in the preparation of the above information shall have any liability to any > person or entity with respect to liability, loss, or damage caused or > alleged to be caused directly or indirectly by the instructions contained > within this or related message(s). > -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s).
