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**Shane@DBPerformance** · 10-05-2006

What car, motor, turbo, rest of the setup? What are the airfuels? What plugs/gap? Could be way too rich or way too lean. Could be plugs or ignition problem. Could be a boost leak. Could be fuel cut. A car with that much E85 in it will run considerably leaner than on straight pump gas. A lot of people can run 20+psi on normal pump too.

10-05-2006	#2
Shane@DBPerformance formerly ecoli Join Date: Oct 2003 Location: On the dyno Posts: 4,892	Re: what could cause studdering/chugging? What car, motor, turbo, rest of the setup? What are the airfuels? What plugs/gap? Could be way too rich or way too lean. Could be plugs or ignition problem. Could be a boost leak. Could be fuel cut. A car with that much E85 in it will run considerably leaner than on straight pump gas. A lot of people can run 20+psi on normal pump too. __________________ www.dbptuning.com