Knightrider 1 Posted August 16, 2016 Report Share Posted August 16, 2016 Engine has been fine last 20k or so miles. Left it for about 6 weeks, not driven. Battery was flat. Started and it now sort of pulses and hunts, very regular, when cold, kind of vrrooom, vrrooom, vrrooom, regular at about 2 second intervals. Stops once car is warmed to operating temp. Black smokes a bit when sationary and revved whilst cold. Seems to be running too rich. Any ideas what could be causing this. Sensor somewhere?. I have a reasonable knowledge of cars and engines but do not know how VR6 cold enrichment works. On Corrado forum someone said that the ECU needs to 'learn engine again'. does that make sense? P.J 1 Link to post Share on other sites
stuarttaylor37 4 Posted September 23, 2016 Report Share Posted September 23, 2016 I disconnect the battery on mine between driving it due to an alarm issue, it does exactly what you say when I reconnect it and start it but is fine if left and then restarted from cold if left connected. Hope that makes sense Link to post Share on other sites
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