Mechanics

TOYOTA COROLLA ENGINE PROBLEM

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 $.
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Guest
April 2, 2013.




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.

KHLow2008
Apr 2, 2013.
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.

Tiny
Sharonmartinez
Apr 2, 2013.
Now the check engine light is very dim and just flickers

Tiny
Sharonmartinez
Apr 2, 2013.
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?

KHLow2008
Apr 3, 2013.
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.

Tiny
Sharonmartinez
Apr 3, 2013.
DId you recheck for trouble codes?

KHLow2008
Apr 4, 2013.
Yes check engine light now just stays on and it wont give a code

Tiny
Sharonmartinez
Apr 4, 2013.
The computer has not been fixed. It is faulty.

KHLow2008
Apr 4, 2013.
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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Tiny
Sharonmartinez
Apr 5, 2013.
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.

KHLow2008
Apr 7, 2013.

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