injector Question
- Thread starter 8scbuick
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- May 28, 2001
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160 to 120??
Leave the inj size where it should be.. Changing it will fatten the motor up and require retuning..Just like the wrong chip in a stock ecm vs the size of the injector..
What was his reasoning???
Changing from 160 to 120 will cause the O2 correction to attempt to shorten the pulsewidth, not open it up.
IE: say PW on the 160 setting is 5MS. Changing the injector to 120 will fake the computer into calculating fuel requirements based on a smaller injector, thus adding PW, say to 8MS. The O2 sensor will see this added fuel as fat and attempt to pull it back out..
?? ME TOO!!
Leave the inj size where it should be.. Changing it will fatten the motor up and require retuning..Just like the wrong chip in a stock ecm vs the size of the injector..
What was his reasoning???
Changing from 160 to 120 will cause the O2 correction to attempt to shorten the pulsewidth, not open it up.
IE: say PW on the 160 setting is 5MS. Changing the injector to 120 will fake the computer into calculating fuel requirements based on a smaller injector, thus adding PW, say to 8MS. The O2 sensor will see this added fuel as fat and attempt to pull it back out..
?? ME TOO!!Similar threads
