Anyone out there had any experience performing the electrical tests on the EGR system ?

Here's what I found when I perform the test detailed in the shop manual.

1) The battery voltage at pin 4 and 6 is 7.5V (should be 12V) but when I rev the engine up, it blips up to 12V and back down again to 7.5V.

2) The +5V between pin 2 and 3 is not there. However there is +5V at pin 1.

3) When I applied battery voltage to pin 4 and 6, the engine did not respond but, I did here a "click" indicating the valve is opening and/or closing.

Could the manual be wrong with regard to the test results ? Or has the PCM "learned" the best EGR settings and therefore the tests yield different voltages ?

Any techs had "real" experience with this ?

smartypants

 

No direct experience w/ that- The only thing I can suggest is to be certain you're looking at the procedure for your year model.