Check engine light but no codes
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Joined: Jul 2004
Posts: 74
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From: Lincolnton North Carolina
Check engine light but no codes
Check engine light came on the other day. I looked at the codes in the DIC but all the codes are marked with an H for history. So if there is no problem why is the light still on?
Drifting
Joined: May 2000
Posts: 1,917
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From: Southern NH
Originally Posted by ic98
Check engine light came on the other day. I looked at the codes in the DIC but all the codes are marked with an H for history. So if there is no problem why is the light still on?
For example, the DTC P0113 IAT Sensor Circuit High Voltage code requires 3 consecutive ignition cycles witout a current failure before the MIL turns off. The code will remain as a History code until 40 consecutive warm-up cycles with no new failure.
Drifting
Joined: Feb 2005
Posts: 1,592
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From: St Louis MO
Originally Posted by ic98
Check engine light came on the other day. I looked at the codes in the DIC but all the codes are marked with an H for history. So if there is no problem why is the light still on?
Last edited by PierEagle; Jul 20, 2006 at 02:30 AM.
Intermediate
Joined: Jul 2005
Posts: 34
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From: Meridian MS
concur
Had the same issue after leaving the vette covered for a while. Battery died and jumped it off. Had the check engine light with no associated codes. After 3 engine starts, no more check engine light 
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Burning Brakes
Joined: Nov 2004
Posts: 1,028
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From: Fort Worth Texas
Originally Posted by ic98
Check engine light came on the other day. I looked at the codes in the DIC but all the codes are marked with an H for history. So if there is no problem why is the light still on?
