Help!! car just died...

[Guest]

Hi all

I own a 1996 wrx non sti sedan which is pretty much standard. A while back i drove it to a mates house and when i went to leave it just wouldnt start. Fuel pump is ok, spark is there and ecu isnt giving any cel codes. Unplugged afm and she starts so assumed it must be faulty and replaced but still no good. There also doesnt appear to be any breaks in the intake system so that also cant be the issue. Im out of ideas at this point and this is the final attempt before i just bite the bullet and pay to get it fixed. Any help is much appreciated...

[boon]

Do you have a boost gauge? How much vacuum is it pulling?

[Stoffa]

cam or crank position sensor would be my guess, very easy to swap over if you can borrow some to test it

[Guest]

vacuum looks ok when i run it with afm unplugged. crank and cam angle sensors were swapped out as well and still no luck

[Stoffa]

coolant temp sensor? only $30 brand new so cheap enough to replace anyway

[Guest]

and that would make the car just die?

[Stoffa]

probably not

[rawyatt]

is it winding over? starter motor going?

[Guest]

yes it does, as in my first post it runs with afm unplugged but afm is not faulty. cam and crank angle sensors changed, tried another ecu, checked fuel pump and spark ok. checked intake system for breaks and ecu for cel codes.... am i missing something?

[Guest]

im thinking that because it runs with afm unplugged probably not..

[rex-leggy]

do you say the afm isn't faulty just because it didn't code?

they dont necessarily have to code to be shagged

[Guest]

AFM is ingored at start due to low/unstable air flow

[Guest]

AFM is ingored at start due to low/unstable air flow

ONLY cam/crank and coolant temp are used to initially fire engine

So if no initial fire then look for these , and could also be spark plugs fouled or ignition relay

NO codes doesnt menat that a sensor isnt faulty !

[rex-leggy]

was my thoughts

[Guest]

as per previous posts i have changed the airflow meter with one thats known to be good, same with crank and cam angle. i wouldnt just rely on there being a cel code as i know they dont always come up when a sensor is faulty. would a faulty coolant temp sensor cause the car to not go at all?

[Guest]

coolant sensor will make car extremely hard to start

An prob wont fire at all in this cold weather

cooling fans will run all the time if coolant sensor faults