[98tadriver]

I put a 2001 LS1 in my 99 Z28 recently, everything seems to be hooked up properly, the fuses are all good as well. but heres the problem

it threw one code, a P0103 Mass air flow, high input voltage or something like that

the car still runs rough when i unplug the MAF and it will throw a P0102 code

it threw the maf code and then i put my t/a's maf on it, and it still threw the p0102 code.

for you tuning guys, the fuel trims arent even registering on hp tuners when i scan it and look at the gauges on the laptop

EDIT- also, im using the original 99pcm and wiring harness with the 01 LS1. i was told the pcm will work with 99-02 LS1s

itll crank over and start but then it barely holds a 400rpm idle. when i go to give it gas, it just bogs and eventually dies unless i tap the gas a lil. it wont hold rpm below 3000-3500rpm and it seems to be really rough but it seemed to hold 4500 RPM or higher somewhat smoothly

dont know if this means anything, but the floor seemed to get unusually hot where the cats were. hot enough to the point where it smelled like the sound deadening was almost getting cooked a lil. even when my t/a had a full interior and cats, it never did that!


i changed the fuel filter, and its getting 55-60psi when cranking so thats good.

spark plugs are NGK TR5's gapped at .040 (recommended on the box)