warren knight Posted February 2, 2016 Share Posted February 2, 2016 hi I have a 88 2.5 l jeep wrangler with ahigh idle of about 3000 rpm. Have not found any vacum leaks , tested map,tps, and replaced the injector .I need to know how I can test the ISA Quote Link to comment Share on other sites More sharing options...
Administrators Moses Ludel Posted February 2, 2016 Administrators Share Posted February 2, 2016 Hi, Warren...There are many topic posts on 2.5L TBI troubleshooting. The ISA test was covered with a PDF of the actual test on August 29, 2015 at this post (click on the title/link):Trust this helps...If you have further needs or questions, type "TBI idle" at the search box for access to many pages of topics and posts on Jeep 2.5L troubleshooting here at the forums. If you have further questions, post a reply at the topic or start a new topic at our Jeep YJ Wrangler forum...Welcome to the forums!Moses Quote Link to comment Share on other sites More sharing options...
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