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International Automotive Technicians Network
Re: 91 Deville 4.5L running rich - weird problem with fix
Posted to Technical Discussion Forum on 1/16/2003

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Hi Robert,

No, I can't say that I have seen this on any EFI systems.

But, I have replaced several Caddy ECM's because the ECM wasn't pulsing one or two injectors. The last one I replaced for this ... Login to read more.