MY CHECK ENGINE LIGHT WAS COMING ON CAR WOULD ...

  • Tiny
  • Anonymous
  • 1993 Toyota Corolla
  • 112,000 miles

My check engine light was coming on car would bog down and kill you could start it again then the same. We changed the relay and the fuel pump, ran okay for a couple of days then then same so we changed the throttle sensor and ran great the next 3 days and then same the car ran fine turned it off and now check engine light and car will turn over then kills. Have any suggestions on what could be going on without bringing to dealership and spending high $.

Tuesday, April 2nd, 2013 AT 2:17 PM

19 Answers

  • Tiny
  • KHLow2008
  • Expert
  • 41,976 posts

Have you retrieve the trouble code for the MIL indicating?

http://www.2carpros.com/articles/toyota-trouble-code-definitions-and-code-gathering-method-1990-1995

Check above link.

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Tuesday, April 2nd, 2013 AT 4:52 PM
  • Tiny
  • sharonmartinez
  • Member

We did the paper clip thing bc auto zone said they didn't have anything to check with it did the 4 blinks than pause then 1, we change the throttle sensor it ran for 3 days then started again, we did the same thing when it wouldn't start and it just kept blinking, we also changed the ignition switch sensor today and still no help. I understand the car is old but never had this much trouble since I got it.

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Tuesday, April 2nd, 2013 AT 5:49 PM
  • Tiny
  • sharonmartinez
  • Member

Now the check engine light is very dim and just flickers

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Tuesday, April 2nd, 2013 AT 6:54 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,976 posts

If the MIL is dim and filckers, it could mean power supply fault or a bad engine computer.

Check for poor ground circuits. Are you still gtting the same code?

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Wednesday, April 3rd, 2013 AT 5:28 AM
  • Tiny
  • sharonmartinez
  • Member

Computer was fixed, it starts but check engine light stays on and car still bogs down like it wants to kill and you can smell that it's not getting the right fuel mixture.

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Wednesday, April 3rd, 2013 AT 8:07 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,976 posts

DId you recheck for trouble codes?

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Thursday, April 4th, 2013 AT 4:34 PM
  • Tiny
  • sharonmartinez
  • Member

Yes check engine light now just stays on and it wont give a code

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Thursday, April 4th, 2013 AT 4:41 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,976 posts

The computer has not been fixed. It is faulty.

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Thursday, April 4th, 2013 AT 5:14 PM
  • Tiny
  • sharonmartinez
  • Member

OK check engine light stays on, when we pull the spark plug wire it's yellow instead of blue, car stays running but when accelerating it bogs down and wants to kill and fuel mixture smell is still off?

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Friday, April 5th, 2013 AT 10:20 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,976 posts

Yellow sparks means a weak ignition coil and that can cause loss of performance but the MIL staying on, that is what you need to resolve.

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Sunday, April 7th, 2013 AT 3:26 AM

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