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I had my unichip fitted aboust 2 weeks ago but over the past few days I've been thinking the car hasn't been running that well. Is there any way to tell if the chip is working?
If the car is a Uk and you have a unichip, I would presume that the boost is increased....so fit a boost guage (dead easy to do) and see what it is peaking at (should be above 1 bar)