Thursday, March 17, 2011

smog issue



I have an 1988 4 runner California. I took it to a test only smog and they said it failed. The work order said that the timing did not retard when jumper wired.

What does this mean?

Reply 1 : smog issue



It means the Electronic Spark Advance may not be working correctly.

When you jump the 2 terminals in the test connector to set the timing, the timing should change, but sounds like it isn't.



Hard to say more without knowing what engine you have.

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