SC51

iTrader: (3)

How many O2 simulators will I need for the 99, I noticed one more today, so theres (2) senors on header before header cats, (1) right after a header cat..and (1) more on the midpipe.. so how many sims>?

SC51

iTrader: (3)

Well i'm going boost tomarrow and need some help on the o2 sensors if anyone has experience. So I have this v2 electronic simulator which has Red=power Yellow=signal Green=ground and (2) white wires heater +/-. Am I splicing in on 02 wire it slef or behind the plug which the colors differ. Also any input on the 4th O2 sensor thats rite under passenger side and wire runs up into car?..somewhere? Need input please! I dont want CEL


Thanks

OneJay

iTrader: (14)

At least two. The last two probably make sure the cats are working.