Computer Diagnostics and Tuning Technical discussion on diagnostics and programming of the F-body computers

Help..ERROR Messages Reading 95 Z28 OBDII

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Old Oct 14, 2004 | 06:13 AM
  #1  
4586's Avatar
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From: Champlain, NY
Help..ERROR Messages Reading 95 Z28 OBDII

A friend has a 1995 Z28 late production with OBDII (J1962 connector)...we have connected a couple of OBDII scanners and in each case..the "error reading..check connections message appears". (I have tried the Actron CP9150 which detects both OBDI & II)

Any specific connections problems with this vehicle that we can look for? The ECM fuse near the drivers door is obviously good along with the PCM fuse under the hood.

The check engine light is intermittent and can’t get a scanner to work… any suggestions?

Thanks

Ed
Old Oct 14, 2004 | 07:01 AM
  #2  
jonota's Avatar
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From: Honolulu, Hawaii
Re: Help..ERROR Messages Reading 95 Z28 OBDII

try more obd1 connectors, all 95's should be obd1, with an obd2 style connector.

Jonota
Old Oct 14, 2004 | 11:50 AM
  #3  
GR8WHTZ's Avatar
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From: Dracut, MA
Re: Help..ERROR Messages Reading 95 Z28 OBDII

I'll second that... ALL '95s were OBD1 with an OBD2 connector... I had AutoZone telling me that my computer was fried before I found that out. I ended up buying an interface cable for my laptop to read codes.

Dave
Old Oct 14, 2004 | 01:41 PM
  #4  
4586's Avatar
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From: Champlain, NY
Re: Help..ERROR Messages Reading 95 Z28 OBDII

Thanks guys...went to:

http://shbox.com/1/4th_gen_tech1.html

And printed out post #12 and #17....which shows how to convert the OBDII plug to OBDI
Old Dec 2, 2004 | 07:59 PM
  #5  
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Re: Help..ERROR Messages Reading 95 Z28 OBDII

HEllo I to am havving this problem with my camaro. With this little conversion does that supply the power to the scanner. Aslo is this were I plug my scanner in to diagnose my ABS inop light being on?

thanks, will
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