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Quote:

He needs to check for code 11 first in the computer. If there is a Crank or Cam position sensor problem this will drop the ASD/Fuel Pump relays and cut off power to parts of the igniton system and fuel pump, thus cranking and checking for voltage will show 0 after about 3 seconds. The fuel pump will not run if the computer does not see pulses from BOTH sensors.




Overcomplicated, all you have to do is check for power at the pump and if there is no power work toward the front. Chances are he will have power and need a pump. If he was a tech and had a scanner, voltmeter and service manual the other way would be the way to go.





There wont be any power at the pump after 2 to 3 seconds after turning the key to on!! The electric pump does not recieve power all the time, if it did and you had an accident then it would spill gas all over the place and cause a fire. Checking for codes is simple and the first part of diagnostics. Using the key to retieve codes is very simple. There IS NOT Power to the fuel pump all the time...read up on the theory. With no power there due to the enginnering design your diagnostic tip is useless. No pulses from crank or cam position sensor and there is NO power at the pump.