Ok, Im at wits end... Im getting hesitation and richness between - TopicsExpress



          

Ok, Im at wits end... Im getting hesitation and richness between 4500 and 5000 RPMs. 91 t. Ct 27. Apexi intake. 3DP and exhaust. Boost is at 14 currently. The car will boost to 14 under wot. Ive replaced plugs, wires, knock sensor, Afm. The O2 sensor is new but was replaced recently. When unplugged it throws the cel. One clue may be that my fuel cut device may be on the fritz, as when the ct27 was installed, the mechanic reversed the MBC hence the thing spiked at 21, but the fcd did not cut. The car had run OK since then, but now its an issue. Any thoughts would be welcome. Tomorrow I will replace the new o2 sensor.
Posted on: Tue, 01 Apr 2014 01:06:56 +0000

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