 Curious annoyance, -- I have a theory; what is yours? |
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| Dave_Darling |
 Apr 4 2022, 09:49 PM
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914 Idiot  Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California 
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I have a small annoyance that I've been putting up with when trying to start my 914. It's been this way for years, BTW. I have a theory about what is going on, but I am interested to hear yours.
My car can be hard to start. It will crank and not catch. After one or sometimes a couple of ~15 second tries at starting, it will cough when I turn the key off again. The next try it starts up. So, any theories about what is causing this? I see two primary paths for this sort of failure; fuel or spark. --DD |
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| 76-914 |
Apr 4 2022, 10:34 PM
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,507 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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Are you saying that the instant the key returns to the on position it coughs like it wanted to start? If so I'd be curious as to the voltage at the coil when cranking.
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| Dave_Darling |
Apr 5 2022, 12:27 AM
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914 Idiot Group: Members Posts: 14,991 Joined: 9-January 03 From: Silicon Valley / Kailua-Kona Member No.: 121 Region Association: Northern California
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QUOTE(JamesM @ Apr 4 2022, 08:08 PM)  Sounds like fuel to me. How long does it take you to build proper rail pressure? Also what motor/injection? Fuel pressure comes up within the first few seconds of cranking. The car is a 2.0 liter (1974) with D-jet injection. QUOTE(76-914 @ Apr 4 2022, 08:34 PM) Are you saying that the instant the key returns to the on position it coughs like it wanted to start? If so I'd be curious as to the voltage at the coil when cranking. That is correct, when I turn the key off it gives one cough as if there was a single combustion event. After it does that it will start normally. I am suspecting the ignition as well, but I haven't yet measured the coil voltage when it is in its failed state. I hadn't considered the ignition switch; that is a good thought!! --DD |
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Posts in this topic
Dave_Darling Curious annoyance Apr 4 2022, 09:49 PM
JamesM Sounds like fuel to me.
How long does it take you... Apr 4 2022, 10:08 PM
jcd914
Are you saying that the instant the key returns t... Apr 5 2022, 12:07 AM
wonkipop
Are you saying that the instant the key returns ... Apr 5 2022, 05:57 AM mate914
Sounds like fuel to me.
How long does it take y... Apr 5 2022, 06:08 AM maf914
Now, twenty two years later I always carry two ig... Apr 5 2022, 08:00 AM mate914
Now, twenty two years later I always carry two i... Apr 5 2022, 08:10 AM mate914
[quote name='mate914' post='2993256... Apr 5 2022, 08:13 AM DRPHIL914
Sounds like fuel to me.
How long does it take y... Apr 5 2022, 07:35 AM Root_Werks
Sounds like fuel to me.
How long does it take y... Apr 5 2022, 10:16 AM Spoke
That is correct, when I turn the key off it gives... Apr 5 2022, 01:04 PM euro911 I had the same issue on the 'BB' ('75 ... Apr 5 2022, 04:56 AM ClayPerrine Dave,
You have to face it.. your car is scared ... Apr 5 2022, 10:41 AM Dave_Darling
You have to face it.. your car is scared of you.... Apr 6 2022, 01:38 AM 930cabman Somewhat of a consensus here pointing to the ignit... Apr 5 2022, 11:13 AM Chris914n6 Similar issue for me once. Even made a video of it... Apr 6 2022, 11:10 AM ClayPerrine Dave.. you can test the theory by putting a remote... Apr 6 2022, 11:16 AM r_towle
I have a small annoyance that I've been putti... Apr 6 2022, 04:20 PM 914_teener I'd spray a little bit of Windex on the CHT.
... Apr 6 2022, 05:06 PM |
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