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91 S10 blazer High idle in park

322 Views 6 Replies 4 Participants Last post by  PeteD
I’ve replaced the IAC, the whole throttlebody the MAP and I have sorta checked for vacuum leaks. But it idles high in park 80% of the time. But in all fairness I don’t have any exhaust after my cat . So I’m missing an O2 I’m about to replace that with this coming paycheck . But I’m wondering if anyone has any ideas tho
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I’ve replaced the IAC, the whole throttlebody the MAP and I have sorta checked for vacuum leaks. But it idles high in park 80% of the time. But in all fairness I don’t have any exhaust after my cat . So I’m missing an O2 I’m about to replace that with this coming paycheck . But I’m wondering if anyone has any ideas tho

Check engine light on? Best thing with gen 1 just need a paperclip to check your OBC
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