how to increase power on the I4

Asked by Sep 26, 2013 at 07:32 PM about the 1989 Jeep Wrangler S

Question type: Maintenance & Repair

my jeep wrangler yj has an I4 engine and losses power on inclines.  what can i do to increase the power on this engine?

1 Answer

7,835

you have the throttle body fuel inj. sys. This sys is like having a carb. The newer jeeps went to port fuel inj. This brought them too life. Now bak to yours, has it always run like this or are ya having prob?

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