So 2 days ago my car would not crank after the alarm went off.. I read up on the net and found if I unlock passenger door the alarm would reset it.. It worked but now the car is just turning over and not firing up.. It almost as if the fuel pump is cut off also.. Everytime I disconnect the battery and reconnect it the alarm goes off.. Whats wrong? I really have no clue..

 

also my car is a 1992 sc

 

Try unhooking the batt for a few mins and then retry and see if it fires up.

 

this happened on my 92 a few years back. i was able to to lock and unlock on the driver side and it worked.

 

yea I tried to unlock it and it makes the starter turn over but not firing up.. Also everytime I leave the battery unhooked and reconnect it the alarm starts going off again.. I didnt even know this car had an alarm till it started doing this.. I do not have the clicker for the doors and dont know if its the alarm thats maybe keeping the fuel pump from cutting on.. Any more help sure would be appreciated thanks..

 

is there a fuse for the fuel pump maybe that has blown or something?

 

try getting the primary key lock and then unlock the car on the PASSENGER door then try starting it up

 

TRUST ME On this one lol

Open up ur engine fuse box and pull the EFI main relay, wait 5min put it. it will start.

Lexus had an advanced anti theft on it...a lil to advanced for its own good.

 

Hellz yea Thanks for the advice I will try this later today.. I will let ya know if it fixes the problem..

 

SO turned out my Fuel Pump went out I replaced the FP today but still not starting for some reason.. I will repost what I find out, when I do find out..

 

How did you test the fuel pump out?

My car did this when we set off my alarm (locked keys in car).

Took the key put it in the ignition, tried it - no dice

Took the key out, locked doors from outside twice, then unlocked twice - fired right up.

 

First remove fuel pump behind rear seat its pretty easy.. Like9 bolts total.. remove it and then us the wire to test on a battery with 12v and if nothing happens the fuel pump is bad..Also you can look at the connector on the fuel pump itself and if one of the connectors looks burnt .. It is bad for sure..

 

The knowledge you can get from this website is crazy
lock my keys in the car (first of many times) Got in with a hanger not
before the alarm shut it down (losing my touch) Locked and Unlocked the
driver side door BAM rolling again. Thanks