Evening all,

Recently acquired a 52 plate ST170 after a 20 year break from Ford's! Despite a few issues, really enjoying it, totally bog standard. Have already rebuilt runner control box, new thermostat etc. Lambada sensors to do as I have EML light on and showing the codes for these.

A couple of questions: -

1) Idle cold is high (1500 rpm) but looking through the posts I see this is common but when it warms up fully, still a little high (about 1000 rpm). I suspect the idle speed is controlled by the ECU but if anybody knows different I'd be pleased to hear from you. Throttle body cleaned up in case of sticking butterfly so eliminated that.

2) When accelerating through the 2000 to 5000 rpm range it feels a little lumpy - almost like driving an old Ford with twin stage Webbers on!!! Not a show stopper but I like to try and get things right. A bit hesitant one moment then pulling like a train the next - I'm thinking fuel filter/fuel pump (it's got 87K on the clock). Reset all leads, checked plug gaps etc.

Any ideas welcome. Many thanks!

Julian