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I'm considering adjusting the fuel mixture on my '82 K-jet car, as the Lambda system indicates the mixture is rich. The Bentley and Volvo manuals suggest that fuel pressure should be checked before any other changes are made. I have the guage I need, but I'm wondering before I open anything up whether the shims and o-rings needed to adjust the fuel pressure regulator are available, or whether I should just leave well enough alone. (I know not to open the fuel distributor itself.) Recent changes in the fuel system include new fuel pumps (both, with the transfer tank pump upgraded to the higher capacity version), and new fuel filters, as well as a new oxygen sensor.
Any suggestions would be appreciated.
Thanks again in advance for your help!
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