MG-Cars.info

Welcome to our Site for MG, Triumph and Austin-Healey Car Information.

Recommendations

Parts

MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG MGF Technical - ecu rev limit

Hello!
Does anybody know at what rpm the ecu is designed to "protect" the engine,by limiting revs.My '98 vvc is shutting down at approx. 5.6/7 k.Is this normal? Thanks for any comments.
doug owens

I have redlined my VVC with no cut out. Having said that I have not exceeded the red line so I do not know at what point it will cut out above the red line
Julian

There is a rev limiter, on a VVC I imagine it would cut in at 7,200rpm (the start of the redline). I've certainly hit it in the past - feels like a high speed mis-fire. It obviously won't be able to protect the engine if you change down too early! :)

Cheers,
Tim
Tim Jenner

Thanks for the comments.Looks like i've got a problem!
doug owens

If certain sensors fail I know the ECU will go into fail-safe mode and limit the engine speed - but I thought that was to 3000rpm. It may be you have a problem with the VVC system?

Tim
Tim Jenner

Julian/Tim,
Thanks for your comments.
Cheers
Doug
doug owens

This thread was discussed on 18/05/2006

MG MGF Technical index

This thread is from the archives. Join the live MG MGF Technical BBS now