hi i have a series 4 rx7 13b turbo just rebuilt and its only good for 200km off a full tank ...
so im thinking it may have sumthin to do with it idling at a vacuum of 15"hg its AF ratio is 11.8 is that too rich or am i wrong



thanks for listening

 

Try taking fuel out until you see the vacuum go up to normal. If it's too lean it will start breaking up and try to stall.

 

Take a trip up to Newcastle RXHEVN & I'll sort it all out for you.
Jon