Vehicle & Technical > Defender

3.5 efi V8 - cold start?

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BigSi:
Does anybody know about the ‘cold start’ on a 1986 3.5 efi V8 (from a Range Rover)? Apparently it’s the reason why the engine is a little irate when first started, but sorts it self out when warm. Has something to do with the automatic choke?  

It’s a Landrover 90, but with a Range Rover engine…….so what section do I use!!!!!

Range Rover Blues:
IIRC the flapper system had an extra injector on the driver's side of the plenum.  Is this what you mean?

BigSi:
Not sure? Had a guy look at it and said that the seal was ok on the plenum, but said that the fault was with the cold start as the choke was automatic. Hence why it runs rough when first started, but settles down when warm.

Range Rover Blues:
I don't know the early flapper EFi as well but if I'm right and there is a 9th injector then try diconnecting it.

Otherwise I'm not sure but I can recomend a read through the Range Rover Haynes book of confusion.  The entire manual is in the suppliment mind you but it has quite a bit of detail on the EFi systems.  the flapper was never fitted to any other LR product AFAIK.

jjsaul:
If you have flapper with 9th injector just unplug it...done that on both of mine and i have no problems with it at all.

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