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Discussion Starter · #1 ·
I really need your help with this one guy's.
I am having problems with my ZR 105.
The car runs fine from cold but say for example I stop somewhere for 5 or 10 mins, engine off, and start the car again (it always starts fine) and go to set off again the car is hesitant/sluggish and then picks up.
It has got me stumped as the car runs so well?

Any advice will be greatly appreciated.
 

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Hey Andy.

I had my 105 in to the dealers on 2nd Feb for bad consumption and poor performance. I didn't mentioned to them that it behaved cr*p when cold, and that restarts when warm were difficult and hesitant when running for a mile or so.

When I got the car back they'd uploaded the correct software into the ECU and that's made so much difference. Cold running problems now a thing of the past and at least twice I've restarted when hot, with no problems seen.

Bingo.

Ask your dealer to hook your ECM to their testbook machine and check for availability of updated software.
 

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As Blaps said, if you've got an induction kit (open) it sounds like heat-soak or something similar... like the old Ren 5 Turbos suffered from.
 
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