engine light comes on but no codes
Thread Starter
Instructor
Joined: Jan 2007
Posts: 191
Likes: 0
From: san diego cali
engine light comes on but no codes
driving back home from the store, my engine light comes on says to service my tc and also says reduced engine power. service tc and abs do come on every so often but never has the engine light also come on or reduce engine light come on for that reason. i could not feel the reduction of the engine power like i have before when my car had overheated from a broken water pump. so i stopped off at a gas station, turned car off then on again, drove home fine with no service tc or reduction of engine power, but engine light still on. checked the codes and there were no current codes. planning on a trip to la this weekend and dont want to get stuck, what should i check or do????? thanks
matt
matt
Thread Starter
Instructor
Joined: Jan 2007
Posts: 191
Likes: 0
From: san diego cali
im going to be all over in la. beverly hills, hollywood, van eyes, Malibu, but when i got in my car today check engine light is gone and my car drove fine. thanks though. i think ill be fine. (knock on wood) my car is mysterious
Tech Contributor
Joined: Dec 2003
Posts: 19,384
Likes: 87
From: Horncastle Lincolnshire, England
2023 C5 of the Year Finalist - Unmodified
Whats the state of your battery? Is it original? Dying batteries can cause wierd electrical glitches.
You may have an active handling issue but it shouldn't cause the check engine light to come on.
I'd clear the codes and see if any return. Even if its only temporary the one thats causing the problem may show up as a "recent H" if you follow my drift.
You may have an active handling issue but it shouldn't cause the check engine light to come on.
I'd clear the codes and see if any return. Even if its only temporary the one thats causing the problem may show up as a "recent H" if you follow my drift.
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Michael S. Palmer
Racer
Joined: Jul 2006
Posts: 444
Likes: 56
From: DeBary Florida
driving back home from the store, my engine light comes on says to service my tc and also says reduced engine power. service tc and abs do come on every so often but never has the engine light also come on or reduce engine light come on for that reason. i could not feel the reduction of the engine power like i have before when my car had overheated from a broken water pump. so i stopped off at a gas station, turned car off then on again, drove home fine with no service tc or reduction of engine power, but engine light still on. checked the codes and there were no current codes. planning on a trip to la this weekend and dont want to get stuck, what should i check or do????? thanks
matt
matt
Melting Slicks
Joined: May 2007
Posts: 2,113
Likes: 0
From: Houston TX
go check using an obdII.The H codes you cannot clear but its something you shouldn't be worried about.I am currently experiencing the same problem you are and its a p1013 code, which is some high electrical input at the MAF, whatever that means. It shows up on the obdII but not onboard.
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
I know you can clear the "H" history codes by simply pushing and holding the reset on each group. You might need to do this to clear things out and get a fresh look at things but write them all down first.
Melting Slicks
Joined: Aug 2005
Posts: 2,996
Likes: 61
From: Fort Wayne IN
Especially if you go through another ignition cycle. What was a C is now an H.
