V40: V40 Cutting out - B4184SJ engine - P0220 TPS cctB

[Adamnw]

Hi all,

A couple of years ago my mother gave up driving (good news all round) and 'gifted' me her car. It's a 2001 V40 1.8i with the fly-by-wire Mitsubishi (Carisma?) B4184SJ engine - an absolute stalwart of a car that sails though MOTs for 25 quid leaving autobahn cruiser owners looking on enviously!

Over the past few months it has started cutting out randomly and an eBay sourced bluetooth OBD reader tells me it's a P0220 issue which translates as Throttle Position Sensor - Cct B. Volvo want about £160 just to connect it to their code reader and considerably more, no doubt, to resolve it. The car is probably worth that in cash terms though as a 'load lugger' worth considerably more.

I have changed the Throttle Position Sensor on the Throttle body (good news is that it was a straight swap with no recalibration necessary) but the issue is on-going.

I've been reading other forums that imply the 'Italian decoke' (Redex and a good thrashing) might help but this seems more 'electronic' than that.

Anyway, having browsed the forums here I came across this:

https://www.volvoforums.org.uk/showt...ighlight=P0220

referring to P0220 which suggests it might be the accelerator pedal sensor - however that information was for a more recent vehicle (a 2008 S40). Would the codes from the 2001 V40 be the same?

Questions are: Might it be the pedal sensor: How easy is it to swap the pedal sensor; If it's not that how do I go about isolating a potential fault on the wiring loom (which is where my gut is telling me the issue might be)?

Grateful for any help someone could provide on this as would love to keep the car going.

Thanks.

Adam