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Old 12-13-2011, 06:50 PM   #7 (permalink)
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Originally Posted by California98Civic View Post
If your check engine light comes on as a result of this procedure you have done it right. If the check engine light does not come on you have probably inserted the paperclip incorrectly. Do it again. This has to be correct because the ECU will undo any changes you make if you don't jump it.
Actually, the notion of the ECU undoing your changes is a myth, it couldn't possibly, it doesn't even know you have made any! The reason the car must be put in test engine mode is that it fixes the timing to a certain value, in normal mode the timing might be all over the place, making it impossible to adjust meaningfully with a light.

13) Check to see that your timing is where you want it ON THE PULLEY and not on your aftermarket gauge. My Ultra Gauge continued to show stock timing even after I have changed it because it continues to go off the ECU's assumptions.

2016: 128.75L for 1875.00km => 6.87L/100km (34.3MPG US)
2017: 209.14L for 4244.00km => 4.93L/100km (47.7MPG US)
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