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dshepp806's Avatar
 
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good news!!!!!!!!!! IGNITION!!!!!!!!!!


Doyle

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1989 Porsche 911 Carrera Coupe
25th Anniversary Special Edition
Middle Georgia
Old 03-17-2011, 02:57 PM
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For future reference, I was bit twice by the lump of grounds connected at the drivers side intake. Corrosion and loose connections there cause similar symptoms....

Chris
Old 03-17-2011, 03:11 PM
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Its Back F!@#$, It happened all day today we had some heavy rain,Stumped!
whats next?
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Old 03-24-2011, 11:00 PM
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I'm guessing it cause is electrical related.
Idea - go to Don's (Dons Autowerks) and see what Worth has to say. They might be able to diagnose by swapping components and also checking what you did so far.
Old 03-25-2011, 07:11 AM
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Is all the engine tin installed and well sealed with the two lip rubber seal?
Old 03-25-2011, 07:25 AM
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Quote:
Originally Posted by hcoles View Post
Is all the engine tin installed and well sealed with the two lip rubber seal?
Ya, its all there unmolested,There is no water in the engine compartment at all very dry...
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Old 03-25-2011, 01:53 PM
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I am thinking I might be looking for a bad ground as well...Any Ideas
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Old 03-25-2011, 03:18 PM
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Take a look at those sensors if you haven't already. Refer back to post #33. I'm pretty sure there exposed to the elements.
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Old 03-25-2011, 05:59 PM
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And once you get this fixed, will have to get together for a back country drive. There is a group of us that have done some semi-organized drives. I have been on one so far. Good times.
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Old 03-25-2011, 06:02 PM
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I think you can get at the two sensors back there without dropping the motor. Fishing the wires where they need to go, not sure. At some point if it is running good after the rain stops, you could try spraying water back there and see if the problem comes back.
Old 03-25-2011, 06:08 PM
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And once you get this fixed, will have to get together for a back country drive. There is a group of us that have done some semi-organized drives. I have been on one so far. Good times.
That would be great, keep me posted...
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Old 03-25-2011, 07:15 PM
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Originally Posted by hcoles View Post
I think you can get at the two sensors back there without dropping the motor. Fishing the wires where they need to go, not sure. At some point if it is running good after the rain stops, you could try spraying water back there and see if the problem comes back.

I have to work Saturday, so i will try it on Sunday if I get a chance, its tuff with 3 kids...
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Old 03-25-2011, 07:17 PM
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So I will be looking at the sensors and the follow grounds while I am in there...hopefully on Sunday
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Old 03-25-2011, 07:18 PM
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And once you get this fixed, will have to get together for a back country drive. There is a group of us that have done some semi-organized drives. I have been on one so far. Good times.
I called Tom, the Mechanic up and had a short chat with him,Nice guy,he has fare rates,hopefully we could do some business soon,maybe if this problem completely fails for the love of God...
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Old 03-25-2011, 07:26 PM
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I am with you, my 86 has recently started with the same symptoms. Changed the cap, rotor, thinking about the wires. Gonna go look up the sensors and see where they are.

Hang in there.

Warner
Old 03-25-2011, 07:47 PM
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Check the insulation on the sensor cables real good.

When I had my sensor problem, my local Porsche mechanic didn't have to drop the engine to get there. Some jack stands would get you there, but a lift would be best.

Yes, Tom is a pretty nice guy and I like the Mobil service he provides. I found a pretty good mechanic less then a mile from where I life. He solved my sensor problem and didn't gouge me. The car was gone for too long, but I was happy with everything else.

Hey hcoles, good idea about spraying water up in there.
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Old 03-25-2011, 07:54 PM
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Bump
Old 03-26-2011, 09:23 AM
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you could go around and check the ground locations, I think the Bentley book points them out, something like 7-9 major ground locations. Clean, put on some grease and torque back down.
Old 03-26-2011, 10:14 AM
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Check the O2 sensor, I changed mine last year and didn't fully seat the connector. It would idle fine and drive at low speed but when trying to accelerate it would cough and spit. Could be your sensor is toast or just a loose connection.
Old 03-26-2011, 10:33 AM
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Quote:
Originally Posted by shrtshck View Post
Check the O2 sensor, I changed mine last year and didn't fully seat the connector. It would idle fine and drive at low speed but when trying to accelerate it would cough and spit. Could be your sensor is toast or just a loose connection.
+1 on this. Always good to check all of the sensors since they are what sends data back to the DME to know how to adjust for fuel, air, timing, etc.

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Old 03-26-2011, 10:51 AM
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