[owenski]

Davejm I had all these problems

in my experience this is all down to just 4 simple things and can be easy fixed yourself.

1 the idle stepper motor if your engine is a B18U could need replaced
2 the vacuum hoses that run from the back of the single point injection unit can be cracked and will need replaced.
3 the grip pins inside the long black ecu plug come apart and need to be closed with a jewelers screwdriver.
4 the solder joints inside the ecu unit need resoldering


Check the grip pins in your ecu plug if any of them look too wide apart you will need to find the smallest jewelers screwdriver (I got a set for a £1 in my local pound shop) then carefully push all the ecu pins together without breaking them. do all of them that look too open.

Also open up the ecu unit and check the solder joints on the back of the incoming pins and I in my case I soldered them all with my cheap £5 soldering iron . In many cases these have cracks and this will cause the revs to stick high.

if you feel you cannot manage this yourself do a google search for your local car auto electrics garage and get them to do it.

this will fix your idle problem