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Ideas on tracking down reason she stalls at idle?
Hi guys, hoping for some guidance here on why my '74 with an early 3.2 in her keeps stalling. In moderate SoCal temperatures (min 60's) she'll start just fine and the first several time I stop or let her go back to idle by putting the clutch in the RPMs drop to 850 quick but hold there steady. A couple minutes after that she'll just die when the clutch goes in. It isn't stumbling, she just cuts out. Once fully warmed up she'll idle correctly.
She has what I believe to be a factory MOTRONIC CPU still.
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1967 912 (now w/ 50% fewer random holes in it) 911 w/ 3.2 1974 914 (3.2L swap underway) 1984 928s (S4 engine and suspension), 1987 928S4 |
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01-30-2014, 04:01 PM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,472
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tired, sluggish idle stabilizer valve perhaps. be sure the throttle closed micro-switch is working. an ohmmeter on the plug will tell you.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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01-30-2014, 04:50 PM
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Thanks John, will look up how to test that circuit.
I don't have a Bentley manual handy, does anyone have a picture of where you connect the OHM meter? Sorry, I did try searching.
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1967 912 (now w/ 50% fewer random holes in it) 911 w/ 3.2 1974 914 (3.2L swap underway) 1984 928s (S4 engine and suspension), 1987 928S4 Last edited by tdskip; 01-30-2014 at 06:57 PM.. |
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01-30-2014, 06:34 PM
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