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Print in friendly format Send this term to a friend  Regular Production Order
Commonly known as RPO. 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: My 93 lt1 is throwing a fit help

Subject: Re: My 93 lt1 is throwing a fit help
by Matatk on 2009/7/30 22:07:06

Quote:

bogus wrote:

Also, check the wiring. Make sure nothing is pinched or melted. If the engine is modified, make sure nothing fell on headers or what not. Be sure to check the wiring at the back of the ECM. Corrosion will really screw things up.


First thing I would check is the wiring and clips to all of the injectors, and then the wiring to/from the ecm. The insulation is known to shrink and expose wires which can cause corrosion and poor connections.

Good luck,

Matthew
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