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  Should an unplugged EGR throw a code?

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Should an unplugged EGR throw a code? by tnkgnr
Started on: 04-29-2021 11:55 PM
Replies: 3 (77 views)
Last post by: tnkgnr on 04-30-2021 11:12 PM
tnkgnr
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Report this Post04-29-2021 11:55 PM Click Here to See the Profile for tnkgnrSend a Private Message to tnkgnrEdit/Delete MessageReply w/QuoteDirect Link to This Post
Just curious - I took apart my EGR solenoid and saw it was rusted tight and would not operate. The car never threw a code 32 like this. Also, I've disconnected the electrical connector and there is no code 32.

Is this normal?
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Report this Post04-30-2021 09:34 AM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
Assuming MIL light works and ECM doesn't have a "Performance/Custom Chip..."

Should pop a code but depending where/how you drive may not show easy or often.
ECM doesn't trip several codes unless meet X error over Y time so driving in city maybe harder to trip then driving anywhere that keeps speed higher then 35mph or more for 10 minutes to half hour.

If ECM command X function, "timer" starts counting, if you stop or slow down and ECM disables/ignores X then counter is reset for next use of X.

24 VSS fail is one like that too. You unplug VSS and error may trip at "random" distance/time miles away w/o ECM reading speed. Plus even then the check engine light often only blinks, not on forever or even a few minutes.

44 lean and 45 rich is often same way.
Even Weather can affect tripping these two because often involves MAT/ACT sensor.
Example: Read MAT in my Cave, DIS Ignition

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Report this Post04-30-2021 12:56 PM Click Here to See the Profile for fierofoolClick Here to visit fierofool's HomePageClick Here to Email fierofoolSend a Private Message to fierofoolEdit/Delete MessageReply w/QuoteDirect Link to This Post
Does the Check Engine Soon light come on with the ignition in the ON position? Might be the bulb has been removed or burned out?
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tnkgnr
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Report this Post04-30-2021 11:12 PM Click Here to See the Profile for tnkgnrSend a Private Message to tnkgnrEdit/Delete MessageReply w/QuoteDirect Link to This Post
Okay, thanks. Yes, my check engine light operates and I don't believe there to be a performance chip in there.
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