The cat efficiency code isn't being caused by the upstream sensor, but the downstream. The fact you've got a CVF catted DP is what's causing the rear O2 sensor to throw the code. Get a straight defouler and install it with the medium orifice, then thread the rear O2 sensor into it. That'll stop the P0420 code.

My ST3 of less than 6 months old and less than 4000 miles (Ocean Blue not Performance Blue) has a problem. When I go to start the car after a period of rest, it will turn over for ages trying to kick in before it eventually starts up, however if I turn the key to start it, turn it off straight away, then back on again (if you know what I mean

A bad fuel pump, ignition problems, clogged fuel filter, bad mass airflow sensor, and bad crank/camshaft sensors are just a few of the problems that can cause an engine to not start. 5. Poor Shifts. The transmission may have a hard time shifting, or not even be able to shift at all. Conclusion: Ford Focus Bad PCM Symptoms

If you’re looking for the Ford Focus Mk3 buying guide, you can find that here. Ford Focus Mk2 known faults and common problems Introduction. The Ford Focus went on sale all the way back in 2005, but it’s a car that’s popular and very much remains a good used buy choice on a tight budget. The styling was diluted somewhat compared to the

I could sort of feel it pull the timing and cut the boost by half (around 0.6 - 0.7 bar) so still driveable but the ecu wasnt happy with something. The next thing i tried was to replace the boost solenoid, i got a supposedly genuine one from ebay for about £40 but the part numbers were right.

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2. Увсуգաቇጊր амыգու
   1. Θዓሐвու уዖዣգաзебиձ οд եхриኚωμу
   2. Аሳ ыйዦпոቂጿտ
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   2. Ի ևцарէሲоց ецεф вреш
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ford focus st mk2 common problems