high hc output emissions fail 2.37 needs 2.00

Asked by Apr 25, 2016 at 11:15 AM about the 1993 Jeep Cherokee

Question type: Maintenance & Repair

Failed emissions test. Fuel pressure and hc output.

3 Answers


Is there a question in there somewhere?

Oh yes. What do I do to fix these? Pressure failure and high HC output. Best I can describe it.


have your fuel pressure tested to see if there is a fault there, and High HC output can be lots of things, you might just need a tune up, or your ignition timing might be off, you could have a vacuum leak under the hood, you could have a bad catalytic converter, your engine could have low compression, and if you have a smog pump on that model, it could be bad.

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