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Old 12-10-2003, 09:13 PM   #8
Infopro
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Location: Pittsburgh, Pennsylvania
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Question Re: ECU adjustments

Quote:
Originally Posted by bigsix
you can also change the settings in the ECU . there is a seven position switch in the ECU , the setting are as follows:

1. Stock

2. 3% increase in injector open time, no timing change

3. 3% decrease in injector open time, no timing change

4. 6% increase in injector open time, no timing change

5. 3% increase in injector open time, 2.78deg retard

6. 3% decrease in injector open time, 2.78deg retard

7. 6% increase in injector open time, 2.78deg retard



these adjustments were to allow for different climate and poor fuel quality issues. You may also want to check the barometric pressure sensor on the fire wall next to the ECU relay.



i hope this helps !!!


mark

Hi Mark, I understand this post is very old, but I am faced with a similar problem. I failed the test. Everything passed with flying colors except the idle test.
It's now geting cold here in PA, and the car doesn't want to start on cold days, seems the battery drains out or something. All summer never had an issue, but now that its cold, it's in trouble.

New battery, new plugs, wires and and I'm wondering if your post here might help me.

Thanks in advance
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