i've been lookin at my airinj wirin,

and i noticed thiers a + sign on one side of the inj,


Wot happens if they are connected the other way round?

Danny

 

they dont open

 

have you seen this or tried it?

 

nope never tried it,, but i know some ecu's reverse current to shut large injectors faster

 

cheers mate.

while i've got your attention, did you connect your loom earth wire to your 5 bar map, as 3 bar needs to be earthed, but the 5 bar dont look like it does.

 

i didnt mate

 

Cheers for all the help.

 

im wrong,, they do open whichever way they are wired

i just tried it

reverze current must be used to collapse the magnetic feild faster

 

well done G, there coils, will work both ways.



same as an amal valve

 

i know one thing,,, its bloody cold in my garage

that depnds on what they are moving with a coil

what about a piece of megnatized iron?

 

pooof

 

i know i just tried it too. run fine.


so why's the inj got a + side on one side?

 

They put a plus sign on i suspect to give people,who are wiring them up from scratch,less to think about!If you think about its a good move because how many people would realise it dont matter which way round it goes

 

i guess so mate.


map sensors fitted and workin ,

have to swap 2 + 3 terminals round.

now reads upto 51.5 psi boost, instead of 29.4psi of my old 3 bar. and with in 1 psi from 0-51psi compared to 3 boost gauges i have.

 

I dont think MAP sensors HAVE to be earthed do they?

What should be the result of a map sensor not being earthed?

 

fiesta cossie

well done mate