Quote:
Originally Posted by c4racer
Mr. Gates has conditioned us to always try a reboot first!! I had the fuel pump out on a Mazda recently - replacing the filter sock trying to chase down a surge (turns out it wasn't that btw). And when the pump went back in it was reading 0 fuel level. I pulled that sucker out a couple times and did a ohmeter test and everything and all seemed in order. Then it dawned on me - I should reset the computer. Quick neg batt terminal pull solved the issue. I still cannot figure out how the ECM knew the pump had been removed since the ign was off the whole time it was apart. Only thing I can figure is maybe the pump sends some different signal when power has been cut, but doesn't make a whole lot of sense. But it goes back to the old adage - when in doubt, reboot it!!  |
haha, true.
Well, the closest that I can figure is that every time you start the vehicle it does a test (fluid levels, bulbs etc). So, when you pull the battery for long enough it must go into some sort of service mode, assuming that the vehicle is being serviced and re-initializes the entire system in order to accommodate any replaced parts.
Or, it just hates me and a battery pull makes it forget; either way.
