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Re: LS tuning help!
pretty sure your going to need a wideband to tune it.. I came across the same issue when i did the L83 swap in my 87 silverado using the air raid MAF adapter... ran weird, long term fuel trims went way lean or way rich... been a few years. Idled supppppper low, exhaust sounded different. Watched a guy on youtube how to maf tune l83 and poof fixed it. I used a 14point7 wideband sensor adapter + used wideband sensor, calibrated wideband per instructions and runs great.
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1987 Silverado - L83 5.3 w/ 6L80e ,A/C,P/W,P/L,TILT, HID projectors, Wilwood C-10 Pro Spindles w/ 2018 silverado front brakes & C-5 Corvette Rear Disc Brakes
1999 BMW 528i - 5.7 LS1 w/ 4l60e, Ford 8.8 IRS w31 spline posi & FX-r projector retrofit
New project: 2006 BMW x5 6cyl AWD to L83 6l80e 4wd to 2WD / RWD
A poor man buy's it twice
finally got my domain name back, 87chevy.com.... site rework in progress
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