Trying to get through my shortblock build and its been one issue after another...Shorblock was assembled with the stock heads, whipple 2.3 etc. Went on the dyno busted a lifter in half (passenger side). Heads rebuilt back on the car. Fired it up, one side of the exhaust breathing normal the otherside barely coming out at all. Blown cat passenger side. The stuff was jammed in the pipe. I cant believe how it was breathing at all. Cleaned everything out...hollowed out both cats. Now the tuner is getting this 11% higher reading on the passenger side O2 sensor. Could the sensor just be bad ? from all the extra heat generated from the clogged pipe ? There is also a small header leak at the manifold(stage 8 bolts will be retightned). Anyone have other ideas what could be causing the higher reading ?...Thanks in advance!
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MMR 5.0 Stroker, 2.3 Whipple. Mono TB, ST Motorsports Intake, Steeda 10 rib, 16psi
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MMR 5.0 Stroker, 2.3 Whipple. Mono TB, ST Motorsports Intake, Steeda 10 rib, 16psi