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Just had 2 error codes (mass or volume air flow A circuit range/performance) and (system too rich off idle bank 1). Anyone got any ideas I have an idea that the first one is from my induction kit but I’m not sure if I should be driving the car because of the second one, I’m running a cobra venom exhaust with a decat. Anyone got any ideas ?
 

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2007 3dr Focus ST performance blue
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Hi,

A friend of mine has a similar issue. We tried to clean the maf and then replace it with a new Hella unit but its running bad, is misfiring and not idling. Runs well with the maf unplugged but its only boosting to the half and has the esp light on. I checked really fast for obvious wiring issues and all looked good. Any advice on this?
If it matters it has a "cold" air intake with a cone filter, crossover pipe, rs turbo, big intercooler etc. Not really sure about other mods as its new to him and it came like this.
Thanks in advance!
 
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