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1990 Toyota Corolla troubleshooting; check engine light is

Tiny
BAYRSEE
  • MEMBER
  • 1990 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 20,000 MILES
My check engine light has come on and I have no idea where to begin. I've checked the basic radiator fluid, oil, belts. Which all are ok. Would the check engine light come on if my transmission fluid is low?
My financial situation prevents me from going to my mechanic which charges $90.0 per hour just for his time doing the diognostic and mechanical work, the parts of course will be another cost which I do not have. Thank you for you consideration on this matter.
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Monday, March 10th, 2008 AT 7:08 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
There is a small gray connector in the engine compartment labeled "diagnostics".
Get a small paper clip and bend to a "U" shape and connect it to TE-1 or T to E-1 slots in the diag. Connector. Turn engine to on (do not start), the check engine light will flash all the codes e.G. Flash, flash. Pause. Flash is code 21.
The connector is usually on the strut tower on the drivers side.
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Sunday, March 16th, 2008 AT 6:40 AM

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