1993 Toyota MR2 OBD-1 codes

1993 TOYOTA MR2
252,000 MILES • 4 CYL • 2WD • MANUAL
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TROYTJ
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got a 12 AND 71....1st things to replace are???
Gonna start with a distributor cap....any other ideas?
Sep 8, 2010 at 6:07 PM
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WRENCHTECH
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The 71 is just an EGR code and nothing to do with your problem.
The code 12 is no ignition reference signal to the ECM. This will likely end up being a bad distributor but all the power supplies to it have to be tested first.
Sep 8, 2010 at 6:23 PM
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TROYTJ
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check engine light is off.....but it will not pass smog in Calif...the smog reading was better than it was before the new EGR valve was replaced...what is up? thank you
Oct 29, 2010 at 12:48 PM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
What are the readings and limits?
Oct 29, 2010 at 1:58 PM
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