D15, D16, D17 and Mini-Me swaps
User avatar
By Mr Rattles
#321330 Hey guys, some advice needed please.

What can be causing my D15 to mis and idle erratically ?
Almost like the car has a after market cam in but it doesn't.

And when I drive then its fine.

I've changed spark plugs and leads, service and checked the timing so far.

Thanks in advance
User avatar
By Mr Rattles
#321336 Sorry just to add some info that might help trouble shooting.

My old spark plugs had oil on them. Put new ones in now though.
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By TrailerTrash
#321338 was the timing correct or did u adjust it?

if u adjusted it, did u jump the connector with a paper clip?
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By Mr Rattles
#321340
TrailerTrash wrote:was the timing correct or did u adjust it?

if u adjusted it, did u jump the connector with a paper clip?


Honestly its being idling like this for years now but has gotten worse lately.

I drove for a few years with the idling retarded by 2 degrees cause the car felt more
Responsive but then my old mechanic set the timing back to normal as per book specification.

Just another thing when I put my lights on the idling gets worse and
idles at about 400 rpm.like the something is draining the power.but when I drive its fine.
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By thomasEg
#323188 sounds like you have a bad alternator turn on all your lights and unplug your battery if its still running and doesnt change its fine but if it tries or does die you need a knew alternator do all this with the car running