history: car was originally an auto has now been converted to 5 speed, i have been forced to change all the lock cylinders on the car bc someone got ahold of one of my keys (long story) and just to be safe i got all new lock cylinders and ignition switch from a donor car to replace on my car. heres the problem, when i turn the key to the on position the guage cluster will light up but the fuel pump will not always prime. this made me think that the main relay may be going out however i have never had this problem before. then if you do it again it will work perfectly .....kinda like 50/50 chance.

the donor car for the locks and ignition cylinder was a 5 speed and on the ignition switch of the auto cylinder (the one originally in the car)there is room that 2 extra sensors go on. im wondering if anyone knows what these sensor are for? maybe on of these is affecting things.its just too great a coincidence that it is exactly when i change the lock cylinder that the main relay starts to go out.

btw car is a 98 hatch as i stated was auto now 5 speed...donor car for lock cylinders was also an ek

 

it sounds like your ignition wires are making good connection. if everything lights up normal but no prime. does the check engine light come on for 2 seconds then off?

so i would isolate that to the main relay first. just remove it and look at it to see if the solders have any dry joints.

Awesome website for diagnosing ignition switch, main relay, ecu problems. Check it out for symptoms u are having.

http://techauto.te.funpic.org/ignitionswitch.php

 

thanks like i said ill just be shocked if by coinicidence this is the first time i have main relay problems

does anyone know what the sensros that are on the ignition switch? im not tyalking about the switch at the opposite end of the key .... im talking about the 3 sensors on the ignition switch itself

 

look at the website i sent you , it might tell you

 

checked it out but didnt have the info i needed...thanks though

im pretty sure one is an interlocking switch but i dont know what the other is

 

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