406 immobilser problem (i think)

[berto1011]

i have a problem with my 406 2.0 petrol inj on a p plate;

i ran out of petrol earlier today,and whist waiting for a lift to garage i thought i would just check water etc,all ok so far,then i thought spray a bit of wd40 around the electrics,so i opened a box near the rad topup/washer bottle and inside there is an ecu and a black wire termeinal with a sliding red lock, so i undone it and spray liberally.......put in the petrol and now car wont start....it sounded as if the immobiliser was stopping it firing up....i have had the car a year and have never had to enter a key code...previous owner said it didnt work..having looked around on this site many times i sought an answer here,i think i have inadvertantly reactivated the immobiliser,what does anyone else think,i dont have the correct key code,nor do i have blip key only the manual one, the light on the keypad is green when i switch on ignition,
can anyone suggest anything that will get my car started again thanks for reading this

[omega]

the key pad is disconnected by taking the plug out the back so as you where no where near it i dont think this is your proplem.

[Gary406]

sounds to me like you sprayed to much wd40 on the ecu. with the plug.

why did you spray that may i ask ? its not needed

neither is spraying wd40 on any electric components for that matter

[steve_earwig]

Check the connectors for bent pins and pins pushing out the back of the plug, cheapo skart-style.

I can't see any problems squirting WD, true it's a water disperser (hence WD) so no real point unless it's wet already, but it is a crude form of lubricant and will repel water for a time until it evaporates.

[berto1011]

hi thanks for your replies,i have sorted the problem,and it turned out it wasnt to do with immobiliser,it was a loose connector on the engine amplifier,apparently is sends power to fuel pump in tank.once this was pushed home with a squirt of electrical contact cleaner,she fired up......
on the plus side the immobiliser now works,using the info i found on the forum.Ihave been a member on this site for a while now,havent really posted much,but there is so much info on here,its one of the best forums i use..

[steve_earwig]

Glad you sorted it but, what the hell is an engine amplifier?

[DiscoPol]

Glad you sorted it but, what the hell is an engine amplifier?

it makes the engine LOUDER

[berto1011]

i dont know either thats what the RAC called it,its a plug in wire connector thingy,under and in front of the fuel shut of rubber thing