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poor running 230f 200 1986



1986 245 b230f
Car starts good from cold ,runs good for about 30 seconds then idle decreases
to almost stall (sometimes stall) then idles up again, then surges up &down till warm.Engine is running very low on power(4000rpm max) seemed like it
was running lean so I pinched the fuel return. It ran great with full power(6500Rpm ,clean ,smooth).I swapped in a known good fuel pressure regulator witch made no change. I have no obvious air leaks. Amm tested ok on other car. My next step will be to swap the injection ECU. Any other ideas or input will be appreciated.

Thanks Rene
--
Rene






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