Freelander TD4 dead throttle

[Onionfarmer]

Hi all, wonder if anyone can help on this one - my 2003 TD4 hippo seems reluctant to go anywhere. Starts fine, but engine management light’s lit and the throttle pedal doesn’t generate any increase in engine revs.
Error message 0x0220 Throttle Pedal track PGS
My first thought was the throttle position sensor, so changed the pedal. Same issue.
My next thought was something’s not getting through to the ECU, but when I look at the throttle demand sensor it seems to be receiving a signal from the pedal. I pressed the pedal a bit & both pedal 1 & 2 demands register. If I’ve done it right I’ve attached a picture of the readout.
Have I missed something bloomin’ obvious or has anybody else got any ideas?
Thanks!

 

[Alibro]

I did some work to my car a while ago and didn't refit the connector on the fuel rail pressure sensor correctly and had a similar issue. I can't remember what the error code was but the car started and ticked over but wouldn't rev.

 

[Onionfarmer]

I did some work to my car a while ago and didn't refit the connector on the fuel rail pressure sensor correctly and had a similar issue. I can't remember what the error code was but the car started and ticked over but wouldn't rev.

Nice idea, thanks for that...I haven’t been anywhere near the fuel rail recently but that’s ringing bells about corrosion build up on the fuel rail electrical connector being quite common...I will investigate tomorrow - I’ve just gotten home after waiting over 6 hours for a national recovery company to come out...and even then I ended up limping the 15 miles home on idling revs. Quite a long trip to the supermarket!

 

[Onionfarmer]

Ok, so after being parked up overnight the fault has disappeared. Everything working fine, no engine management light.
Lends weight to moisture getting to a sensor/plug connection. Also means it’ll be a bugger to resolve as I’m not gonna know if I’ve fixed it or if it’s just waiting for the next rain shower!

After a quick look, spotted that the fuel pressure sensor plug on the loom is cracked and a side section of it missing, so looks like that is the likeliest cause of water ingress. Wrapped the lot in tape for the mo, but need to replace that plug for a start. Hopefully that’ll be the end of it, but I guess only time will tell!

 

[hd3]

Lends weight to moisture getting to a sensor/plug connection. Also means it’ll be a bugger to resolve as I’m not gonna know if I’ve fixed it or if it’s just waiting for the next rain shower!

https://www.autoelectricsupplies.co.uk/product/827/category/154

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[Onionfarmer]

https://www.autoelectricsupplies.co.uk/product/827/category/154

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Thanks for that idea - I’ve ordered some of that & also some ‘liquid electrical tape’. Used on boats, so should handle a soggy UK winter!