Jeep ZJ Engine Codes 21 and 32 Fix

Watch the video to see a possible cure for your Jeep OBD1 engine codes 21 and or 32!
Not sure how to check the codes? Just turn your ignition switch from off to on 3 times and on the third time leave it on. Watch the engine light and count how many times it blinks in between pauses. Google the numbers it gives you and look up what the code means.
21 is for the oxygen sensor, and 32 is for the EGR valve (which uses the oxygen sensor for computer readings).