injector balance rates [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: injector balance rates


isudiesel
07-13-2005, 11:13 AM
I had my local dealer reprogram my computer for the overdrive lockout after I installed my switch. While I was there, I had them run a balance rate test.
The numbers written on the sheet were 21,21,21,21,21,21,20,20.

The tech said that these numbers were within spec. He said that the +-6 would be variations from these numbers.

These number do not make any sense according to the other results that I have seen.

Do you think that they ran another test? Which test do you think that they ran?

Thanks,
Paul.

marky
07-13-2005, 11:39 AM
The +-6 is the range when the test is done in drive idling with brake applied. +-4 is the range for in park. Most of my rates are negative with a couple of positive values, and they are not consistant across all injectors.

Perhaps he meant 2.0 or 2.1, and didn't bother to say whether they are negative or positive. You may have to ask the tech who did the work for additional details.

Clearly 21 is greater than 6 and out of spec.