time,75.420,ckp_c,139877,rpm,4948,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.51,vref,1.75,maf,1.65,MAP,NaN,TP,100,CLT,NaN,MAT,94.32,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.427,ckp_c,139884,rpm,4948,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.51,vref,1.75,maf,1.64,MAP,NaN,TP,100,CLT,NaN,MAT,94.32,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.433,ckp_c,139983,rpm,6521,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.51,vref,1.75,maf,1.58,MAP,NaN,TP,100,CLT,NaN,MAT,94.32,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.440,ckp_c,139989,rpm,6521,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.51,vref,1.75,maf,1.63,MAP,NaN,TP,100,CLT,NaN,MAT,94.32,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.445,ckp_c,140026,rpm,342857,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.51,vref,1.75,maf,1.60,MAP,NaN,TP,100,CLT,NaN,MAT,94.32,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.453,ckp_c,140041,rpm,342857,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.67,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.458,ckp_c,140063,rpm,8321,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.61,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.464,ckp_c,140069,rpm,38834,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.62,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.471,ckp_c,140079,rpm,38834,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.60,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.477,ckp_c,140101,rpm,38834,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.61,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.484,ckp_c,140104,rpm,38834,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.61,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.489,ckp_c,140162,rpm,4573,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.62,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.496,ckp_c,140172,rpm,24640,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.62,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.502,ckp_c,140195,rpm,24640,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.64,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.509,ckp_c,140208,rpm,24640,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.57,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.514,ckp_c,140218,rpm,24640,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.61,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.521,ckp_c,140265,rpm,24640,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.62,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.527,ckp_c,140271,rpm,24640,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.65,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.533,ckp_c,140305,rpm,24640,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.60,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.540,ckp_c,140312,rpm,2872,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.69,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.545,ckp_c,140374,rpm,10160,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.90,vref,1.95,maf,1.64,MAP,NaN,TP,100,CLT,NaN,MAT,84.85,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.553,ckp_c,140390,rpm,10160,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.98,vref,1.99,maf,1.64,MAP,NaN,TP,100,CLT,NaN,MAT,83.03,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
time,75.558,ckp_c,140400,rpm,10160,idl,0,fuel_base,NaN,fuel_iat,1.00,fuel_clt,1.00,fuel_lag,0.00,fuel,NaN,timing,NaN,af,12.98,vref,1.99,maf,1.60,MAP,NaN,TP,100,CLT,NaN,MAT,83.03,duty0,0.00,dwell0,0.00,period0,1479.61,duty1,NaN,dwell1,0.00,period1,0.00,
These crazy RPM means signals are changing too fast which in our case looks like noise. What is your exact electrical configuration on this righ now? If that's just the naked wires can you put a '103' capacitor between the discovery signal pin and ground in order to eliminate the noise?