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RPO

Regular Production Order. These are the codes that GM uses to identify options.

For example, LT1 is the RPO for the engine used from 1992-1996.
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Re: opti question

Subject: Re: opti question
by tjpreul on 2010/7/17 1:12:00

Quote:

vis_croceus wrote:
Quote:

denz93 wrote:
no i have no way to scan the pcm what type of scanner is needed i might be able to get one

You need a laptop, a cable and the free trial of Datamaster.

cable:
http://www.obd2allinone.com/sc/details.asp?item=aldlobd2u
(or similar)

datamaster:
http://www.ttspowersystems.com/DataMaster_downloads2.html

You can pull the codes from the dash. Put a jumper between pins A and G. Turn the ignition on, and it will go through its scan. If there are no codes you will get a C12 after the 1., and nothing after the 4. or 9.

http://www.corvettebuyers.com/c4vettes/ecm.htm

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