removing "ready" codes

**cheechz** · 04-13-2009, 08:47 PM

just curious.. for inspection in NJ we have the OBD check to make sure all (or say 8 out of 10) of these selected codes are determined to be "ready". do we have the ability (in HPT or something) to determine which codes are included in this list? i know we can determine what will throw an error or MIL light, but say I want to delete AIR or EGR (which are currently both on this ready list). will they still come up on the inspection as "unready" or "unused"?

**Siciliano15** · 05-11-2009, 07:58 AM

Originally Posted by cheechz

just curious.. for inspection in NJ we have the OBD check to make sure all (or say 8 out of 10) of these selected codes are determined to be "ready". do we have the ability (in HPT or something) to determine which codes are included in this list? i know we can determine what will throw an error or MIL light, but say I want to delete AIR or EGR (which are currently both on this ready list). will they still come up on the inspection as "unready" or "unused"?

bump for good question with no answer yet

**Wesman** · 05-11-2009, 08:47 AM

Originally Posted by cheechz

just curious.. for inspection in NJ we have the OBD check to make sure all (or say 8 out of 10) of these selected codes are determined to be "ready". do we have the ability (in HPT or something) to determine which codes are included in this list? i know we can determine what will throw an error or MIL light, but say I want to delete AIR or EGR (which are currently both on this ready list). will they still come up on the inspection as "unready" or "unused"?

They default to "no fault detected", so when they scan the PCM at inspection, they will come up as "ready".

In other words, you pass

**NaviDyn** · 05-31-2009, 02:59 AM

If you are refering to readiness tests, that is done when you complete an OBD II drive cycle. An emission station that just reads OBD II or a scanner shows if the tests are complete. They show no complete after erasing codes.

The old IM 240 test did a drive cycle, and forced the tests to take place, so the engine light would turn on if there was a fault that needed two trip detection.