Davelws Posted May 25, 2023 Share Posted May 25, 2023 Hi everybody I have a 2009 focus 2.0 tdci 136bhp that has a couple of issues. for a couple of months now I've been getting engine malfunction every other day or so and the engine just cuts out then starts again a couple of mins later but by the time i get the code reader on it the codes are cleared. yesterday its starting then cutting out about 2 mins later, this time i got some codes P0336 - CKP Sensor A Circuit Range/Performance U2023 - Vehicle Communication Network Fault U2196 - Invalid data for Engine RPM The other issue i have is a fuel issue. i changed the fuel filter a while back and what a mission it was to get it started again (started a thread on here that helped massively) few days after i got it running again i get engine malfunction come up but the car still runs, i puled the codes below, any help would be greatly appreciated P0002 - Fuel Metering Control Valve Circuit Malfunction P120F - Fuel Pressure Regulator Excessive Variation Quote Link to comment Share on other sites More sharing options...
mjt Posted May 26, 2023 Share Posted May 26, 2023 The U codes are Canbus faults. Looking at the age of your car I would suspect some of your issues might be caused by the common solder joint failure in the instrument cluster (unless you've had this dealt with already). I had a very similar fault of cutting out on a Mk1.5 1.8TDCi some years ago. I didn't have a code reader at the time but the garage diagnosed a crankshaft position sensor (CKP), replaced it and that fixed it. 1 Quote Link to comment Share on other sites More sharing options...
Davelws Posted May 26, 2023 Author Share Posted May 26, 2023 I have just ordered the crank sensor and will look into getting the cluster looked at then update cheers Quote Link to comment Share on other sites More sharing options...
Davelws Posted June 4, 2023 Author Share Posted June 4, 2023 Replaced the crankshaft sensor and that's fixed the engine cutting out, now I still have the P120F code. Engine malfunction comes up when idle, as soon as I rev it a bit it disappears. If I let my foot off again it reappears, when I scan I get P120F - fuel pressure regulator excessive variation. Anyone have any experience with this code? Much appreciated 👍 Quote Link to comment Share on other sites More sharing options...
Davelws Posted June 17, 2023 Author Share Posted June 17, 2023 Just a quick update. So I noticed when revving there are a load of bubbles coming from the fuel filter end so to I bypassed the filter housing and connected the pipe from the tank straight to the hight pressure pump and there was no bubbles, and no fuel error so there definitely a seal gone in the filter housing. Unfortunately I can't find a kit to replace the filter seals so I've bought a while new filter housing. Will report back once fitted 👍 1 Quote Link to comment Share on other sites More sharing options...
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