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Registered
Join Date: Jun 2008
Posts: 149
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Cold start, won't start, warm start will - issue 3.2
Over the last few months, my stock 3.2 has exhibited off and on, but slowly getting worse cold starts - after a week or two of sitting. Today, it wouldn't fire at all after several minutes of trying and the car actually starting to shake(?) while turning the engine over. In the past, once the car starts it would run and restart fine. I don't smell any gas around, and am wondering if I should try some fuel pump checks or what - and not sure what those would be. I'm not a mechanic by any stretch, and would appreciate any guidance. I have a spare DME but I've always heard they just go bad all at once, so it doesn't seem this progressive problem fits?
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05-17-2014, 02:38 PM
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Member 911 Anonymous
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Probably the CHTS, Do you have the updated one or is it OEM?
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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05-17-2014, 03:20 PM
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Join Date: Jun 2008
Posts: 149
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I've only owned the car a few years, so I'm not sure. Is there any way to check it?
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05-17-2014, 03:53 PM
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Member 911 Anonymous
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Download the PAG katalog for 84-86 911's
CHTS is the cylinder head temperature sensor. You can remove the huge "banana like" black plastic heater tube then you will see the mounting brackets for three sensors, the on top is the sensor connector it will white ( yellowed out due to heat ) take a pic and we can tell if it is OEM or updated. The sensor end is screwed into the #3 cylinder. Jim
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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05-17-2014, 04:16 PM
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Registered
Join Date: Jun 2008
Posts: 149
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Just to close out the thread and for any future searches, I changed out the DME and car started right up and ran great all weekend. I had always heard about those units going from fine to dead, but this one gave some warning, with previous hard starting.
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05-19-2014, 10:06 AM
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Get off my lawn!
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Did you change the DME relay or the entire DME? There is a big difference in price.
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Glen 49 Year member of the Porsche Club of America 1985 911 Carrera; 2017 Macan 1986 El Camino with Fuel Injected 350 Crate Engine My Motto: I will never be too old to have a happy childhood! |
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05-19-2014, 12:40 PM
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Registered
Join Date: Jun 2008
Posts: 149
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Sorry, relay.
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05-20-2014, 08:31 AM
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Marble Grey
Carrera
