92 jeep cherokee sport has rough idle when first started, then jumps to regular idle.?

Question

When it is first started cold, the idle starts out low and then about 30 seconds to a minute it slowly climbs to the normal idle speed and then my check engine light comes on. After i have driven it and is warm it will do the same thing, but when started it will start out at the normal idle. Then it drops and then returns to the normal idle after about 30 seconds.

Answer 1

check for any vaccumm leaks and have the codes for the engine lamp it may even indicate the exact issue..