Efi fault following bottom end rebuild

Efi fault following bottom end rebuild

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Discussion

Zippee

Original Poster:

13,543 posts

240 months

Tuesday 7th April 2009
quotequote all
Since getting my engine back I get a EFI fault flash up (very quick blip/beep on dash) either at a constant speed or when coming to a stop or idling.
At speed there is no other noticeable symptom apart from the pod warning - in fact unless looking at the time the only way you know is by hearing the warning beep.
When coming to a stop sometimes I'll get the fault code and the revs will drop virtually to zero before quickly coming back up and finally when idling it will happen for no apparent reason as well, this is with a warm idle of 800 or so..

Also if re-started when warm/hot my idle speed sets itself at 5-600 rpm and won't come back up until I've actually driven a couple of mile whereby it will sit back around the 800 mark and hence give the occasional EFI blip again.

Is this anything to worry about and whats the likely cause? Throttle bodies needing rebalancing? I'm not the most mechanically minded so please excuse any simplicities above.

KillerJim

969 posts

209 months

Tuesday 7th April 2009
quotequote all
I had this and after a service (throttle's balanced) it went away..

Hardly ever see it now, but its not unusual to see it once every few weeks for a split second..