Low RPM roughness

Bruce Plecan nacelp at bright.net
Tue Aug 29 16:25:46 GMT 2000


> >>you probably need a custom chip for your app, fuel pressure is a little
> high,  do you have a speed sensor for road speed - you wont get mileage if
you
> dont
> Yes, I have the speed sensor.

>As far as I can tell, the only thing the 7747
> uses the speed sensor for is to control the TCC on the 700R4.  I have
> verified that the TCC is operating as expected.

Also, IAC.

> Fuel pressure high tho?  From the book, 13PSI is right on the money?

Ever engine is different. Need to really figure out what is right for your
application. The 13 is for an average box stock, what ever you looked up.
Bruce

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