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Registered
Join Date: Mar 2010
Location: SF Bay Area, CA
Posts: 82
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Help! Installed SW chip, car won't start
Hi all,
I just acquired an SW chip from a fellow Pelicanite. Problem is, the car won't start with it installed. I followed all of the instructions, and am pretty sure it's the right chip for my car (24 pin, made for '84-'86 carreras). Anyone have any thoughts or suggestions? I emailed Steve Wong last night, but haven't heard back from him yet. I put the original chip back, and the car started up fine. What I did - 1. Remove DME unit 2. Opened unit 3. Resoldered jumper as instructed here - 911Chips.com - Motronic DME Update. Mine had the jumper connecting B702 to B1, so I moved that to connect B703 and B704. 4. Removed old chip 5. Installed SW chip 6. Closed unit 7. Reinstalled unit into car Did I miss anything? I saw instructions for adjusting the idle speed, but that seems to only apply if/when the car can be started. Thanks!
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1984 Carrera 3.2L Coupe, Guards Red |
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05-20-2010, 12:10 PM
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Ruby911
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try calling the phone number for 911 chips - any time I called it, Steve answered the phone ( I think it was his cell)
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1984 Carrera - SW Chip, Factory Short Shift Kit, Cat Bypass - SOLD 1968 Ossi Blue 912 Sunroof Coupe - SOLD 1971 911E - 2.7 Twin Plugged, PMOs - SOLD 1965 356C Outlaw RGruppe #577 |
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05-20-2010, 12:37 PM
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Join Date: Jul 2008
Location: St. Petersburg, FL
Posts: 2,497
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Steve would get an A+ on the customer service end...so +1 on call them.
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'87 Carrera - 2400 lbs of Track Beast!! '88 Carrera Cab - Too nice for the track. '85 Targa - Salvage title that was not caught! |
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05-20-2010, 01:17 PM
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Join Date: Oct 2002
Location: St. Louis region
Posts: 3,147
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Are you sure the chip is installed in the right direction? With the little notch on the correct end?
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Deceased: Black '88 Carrera Coupe, Steve Wong and Russell Berry chips, Dansk premuffler, custom MK GT3-style muffler, Magnecores. Al Reed 7 & 8 X 16 Fuchs. Full Elephant Racing suspension, 21/28 T-bars, Turbo tierods, bump steer kit, Bilstein Sports, BK strut bar. Ruf bumpers, 935 mirrors, Carrera 3.0 tail, DasSport bar. '11 BMW 328iX, '18 Nissan Frontier 4X4, '92 Acura NSX. |
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05-20-2010, 02:19 PM
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Registered
Join Date: Mar 2010
Location: SF Bay Area, CA
Posts: 82
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Thanks - I was able to get in touch with Steve, and hopefully I can figure out what's going on.
Wavey - I was sure, until everyone started asking me! I'll try it again tonight though.
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1984 Carrera 3.2L Coupe, Guards Red |
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05-20-2010, 02:26 PM
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abides.
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Check the jumper you soldered in.
I had the same problem, and it turned out that I had messed up one of the solder joints. I went back and cleaned up my soldering job and the car started right up.
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Graham 1984 Carrera Targa |
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05-20-2010, 04:06 PM
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Join Date: Mar 2010
Location: SF Bay Area, CA
Posts: 82
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Quote:
 
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1984 Carrera 3.2L Coupe, Guards Red |
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05-20-2010, 04:09 PM
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Registered
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Your jumper appears to be soldered in correctly.
You burnt off a solder pad from the jumper you removed, so if you try to put the old chip and jumper back in, you might have to be creative. This should not affect what you're trying to do with the SW chip. Oh, and your chip appers to be correctly oriented. Make sure you didn't bend one of the pins while installing it.
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Henri '87 Carrera coupe: Venetian blue Last edited by Hendog; 05-20-2010 at 04:50 PM.. Reason: added info. |
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05-20-2010, 04:49 PM
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Porsche Junky
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Here's my chip story:
Bought a GIAC for the 3.6 conversion. Bent a couple of pins on installation. Broke a couple of pins trying to straighten them out. GIAC graciously sent me another for the cost of shipping..... Broke a couple of pins installing that one......won't be installing another.... I am an idiot...... 
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1986 930 RUF equipped |
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05-20-2010, 05:11 PM
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Join Date: Oct 2008
Posts: 381
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I just installed a SW chip a few weeks ago in my 84 cab. Had no issues fortunately and the car screams!! Steve and I had numerous e-mails and his customer service is second to none. He will get you squared away, give him time to get back to you...he will.
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05-20-2010, 05:41 PM
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Is the ICV vibrating when the ignition is switched to ON? If yes it tells you the CPU is processing the chip contents correctly. If not the CPU is not running because it doesn't read the chip contents correctly.
Ingo
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1974 Targa 3.6, 2001 C4 (sold), 2019 GT3RS, 2000 ML430 I repair/rebuild Bosch CDI Boxes and Porsche Motronic DMEs Porsche "Hammer" or Porsche PST2, PIWIS III - I can help!! How about a NoBadDays DualChip for 964 or '95 993 |
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05-20-2010, 10:06 PM
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Registered
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Matt, It could be a shorted chip due to electro-static, I have a SW chip temporary not installed in my car, your welcome to try it.
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91 964 Guards Red 64 356C Ruby Red 85 Carrera (Gone but not forgotten) |
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05-21-2010, 03:25 AM
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1984 Porsche 911 3.2
Bonnie Blue
Bloodymary
1984 Porsche Carrera Targa
1987 Porsche 911
1982 Porsche 911 SC 3.6 L
914 2.0
944 Turbo
1986 Porsche 930
1974 Porsche 911 Targa 3.6
