St220 woes

[katy81]

Excessive fuel consumption

P0171
P0174
P0120
P0420
P0430


Suggestiond

 

[HoneyBadger]

10/10 would read again.

 

[tom_e]

Suggest searching the codes and going from there

 

[katy81]

Yeah they are like running lean/rich.

I know a lot of people here have had one. Thought it night be a common problem

 

[sx_turbo]

Seems a bit odd, there are 3 faults all at the sake time there.

I'd clear the codes and try again.

It could be lambda sensor as 3 of those codes relate to running lean, it could be a faulty pcm valve 1 is the cat, and 1 is tps

Is there any other symptoms like rough idling or anything?

 

[katy81]

Nah runs spot on.

Idle is low though 500rpm. Doesn't stall though

 

[katy81]

I've reset the codes, all but tps that comes back

 

[sx_turbo]

I've reset the codes, all but tps that comes back

Sounds more like a vacuum leak than anything, might have a slight crack in a hose somewhere or something, but could also be the pcv valve causing the same.

 

[Rroff]

With a spread of codes like that lambda/oxygen sensor is the usual suspect as mentioned above, sometimes just sticking some additive/premium fuel through might be enough.

 

[katy81]

https://i.~ibb.co~/R231sy1/20240205-170433.jpg

 

[sx_turbo]

https://i.~ibb.co~/R231sy1/20240205-170433.jpg

Ah, ned to repair the wiring loom there, looks like it's melted on the exhaust, seems that's your failure, make sure it's tied well out the way when it's fixed

 

[Nasher]

Get the soldering iron out

These older Fords also go mental like this when the battery is dying.

 

[Sinbad2000]

Vacuum/boost leak will lead to alternate rich/lean codes...