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Hi Im David, thanks for visiting the site, when you try to star the vehicle is the red security light going out?
Are you sure you didnt cross/pinch the fuel lines the second time you replaced the pump?
you replaced the pump. it worked for 2 days and would have continued to work except for the level sensed not working, so you replaced it again and now it doesnt start. what is the fuel pressure with the new pump installed? can you hear it run when the key is in the on position?
ok. good. how long did it take for the pressure to drop back down?
ok, but there is a security light that does light up and go out correct?
did you pull the vac hose off the fpr to see if theres fuel present?
spray some starting fluid and see if she starts for a few seconds, so we can rule out spark or compression.
sorry, i missed that.
fuel pressure regulator
ok, its supplied by a pressure sensor then
so we have fuel, spark, compression, have you check any related fuses for ign/fuel/pcm/mfi/inj??
and the brake light illuminates while cranking?
the vac hose above the diaphram...pull that off.
ok. im gonna look up one more thing.
When the ignition switch is failing, the brake warning light may not come on under these conditions, or else it lights up and then goes out
the only thing that would keep the injector from opening is the computer.
nope. you got a point. so im condeming the ignition switch....
ok. sounds good
ok. keep me in the loop. and thats a good possibilty
ok, lets try this again. when you turn the key to the run position(not start) does the check engine light come on?
the check engine light is supposed to remain on in the run position. that is an idication the ecm is working. if its going out then the computer is bad.
its only supposed to go out when the vehicle is started
let me know when you get another computer.
if its from the same year model make ,same part number and same options, then no.