Engine won't start

Spacemonkey1993 · February 01, 2011, 12:50:29 PM

Yeh it's not a fuse and I've checked all the plugs. But i have no idea what a hall sender is lol?

hardchargin40 · February 01, 2011, 01:06:33 PM

Its in the distributor. I think bosch do replacements - many moons ago but may still. That or a new distributor needed. May be wise to get out the multimeter first though before shelling out.

hayesey · February 01, 2011, 01:12:23 PM

read the engine diagnosis thread in FAQ.

hardchargin40 · February 01, 2011, 01:32:26 PM

Dug it out for you...

- hall sender: to test disconnect the ignition coil connector, unbolt the distributor from the engine but leave the wiring loom connector connected to it (you can take the cap off if you want). Now turn the ignition on but do not try to start the engine. Turn the distributor by hand, every time the trigger wheel inside goes past the hall sensor, you should hear the injectors fire and the fuel pump run momentarily. I can't remember if it operates leading edge or trailing edge but it doesn't really matter. Just check that turning the dizzy by hand makes the injectors and fuel pump fire. The part number on the correct dizzy should end with a "P", others will have incorrect trigger wheel spacing and will cause running problems. You can also use a dizzy from an 8v mk4 polo which are identifiable by having the hall sender connector on the back (as you look at the engine from the front of the car) whereas the original mk3 polo ones are on the top.

Spacemonkey1993 · February 01, 2011, 03:25:27 PM

this is the hall sender yeh? the bit below the plug...

hayesey · February 01, 2011, 03:29:40 PM

yeah, the sensor and connector are all the same piece of plastic.

Jezza-7 · February 01, 2011, 05:23:48 PM

You can buy new hall senders but there around £60.

Spacemonkey1993 · February 01, 2011, 05:25:56 PM

right its not that because i got a dizzy and tryed it. ive tried everything i can think of so ill take it to a garage tomorow

hardchargin40 · February 02, 2011, 08:06:29 AM

Cam and ignition timing all set right?

Hope you get it sorted, fingers crossed it just something thats been overlooked.

Spacemonkey1993 · February 02, 2011, 08:23:15 AM

Yeh hopefully, thanks for all the help anyway

scotsjohn · February 02, 2011, 05:11:22 PM

Fingers crossed it's not an ECU fail. Cheerful fucker amn't I.