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PeteKz PeteKz is online now
PCA Member since 1988
 
Join Date: Feb 2018
Location: SW Washington State
Posts: 4,575
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If it starts and runs well when warm, then rule out spark issues. It sounds to me like your cold start valve is not operating when cold. I think that when you give it about 1/2 pedal, that draws more air through the air sensor, which increases fuel from the fuel distributor, and then it starts. But you shouldn't have to do that.

I would check that the CSV is getting voltage from the thermo-time switch. If it is, then take out the CSV and apply 12 volts to see if it squirts fuel. Then report back here.
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1973.5 911T with RoW 1980 SC CIS stroked to 3.2, 10:1 Mahle Sport p/c's, TBC exhaust ports, M1 cams, SSI's. RSR bushings & adj spring plates, Koni Sports, 21/26mm T-bars, stock swaybars, 16x7 Fuchs w Michelin Pilot Sport A/S 3+, 205/55-16 at all 4 corners.

Cars are for driving. If you want art, get something you can hang on the wall!
Old 02-19-2023, 11:21 PM
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