Question about 1995 Cadillac DeVille

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Code 88 what is code 88

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In reviewing the GM OBD I code list, there is no code 88
FAQ How to read older GM codes for free

Posted on Mar 23, 2014


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I have an olds 88 1996 the radio wont work. It just says lock on it. any ideas why

Call GM and tell them your problem.Every radio has a security code to reset it. If you don't have the book on the radio that is what you have to do.. They will give you the code.

Sep 11, 2013 | 1995 Oldsmobile 88

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Diagnosis code Po440 on Oldsmobile 88 ls

That is P0440
Difintion is: Leak in the Evpaorative fuel emission system. Possible common cause loose or defective gas cap.

May 30, 2012 | Cars & Trucks

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91 olds 88 Royale misses, pops and lacks Power after Repairing code 41 and 13. New Magnet and new O2 sensor. now giving code 13 again. runs Horribly Rough.

Check for a vacuum leak. 13 is oxygen? If so, it may be a leak. If not, it may be a bad plug. Have you changed anything? Tried to get a code?

Feb 23, 2011 | 1991 Oldsmobile 88

1 Answer

My 1992 olds 88 computer shows an error code of 41 and 42 what does this mean

you need a code book or go to parts store and ask them ,they normally have books to help you

Sep 18, 2010 | 1992 Oldsmobile 88

1 Answer

Trans code number automatic tranny 88 volvo

There should be a metal plate on the left side of the trans with the part number.

Mar 27, 2010 | 1988 Volvo 740

2 Answers

I have a 1995 olds 88 that is pre OBD2 but it has the OBD2 connector. It will not allow me to retrive codes???

The 1995 Olds 88 has an obd 2 plug, but is an obd 1 system. Some people call it obd 1.5
There is no option to jump 2 contacts to flash the codes on the check engine light in these cars.
You will either need a compatible scan tool, or a cable to hook to a laptop and the software to pull the codes. (check out
One such scan tool is the Actron CP9185. It has the extra data pin for the 8192 baud communication with the computer in these cars. (pin 9 on the OBD 2 connector)

Jun 28, 2009 | 1995 Oldsmobile 88

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