atap readings....low timing and MAF error???
Thread Starter
Joined: Nov 2001
Posts: 1,794
Likes: 1
From: Slate Hill, NY
atap readings....low timing and MAF error??? hi,
i just had cam, headers, t-body installed and wanted to atap before i go to ls1edit. my reverse recently got locked out, and i hope it is just a faulty solenoid.
i got some error codes:
1) PO102 mass or volume are flow circut low imput
2) po405 exhaust gas recirulation sensor A circuit low (obvious since i removed my EGR with the Z06 intake)
3) P0801 Reverse Inhibit Control Circuit Malfunction
4) P0803 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction
do you think the MAF error is causing the low timing? 18.5 degrees maximum timing and what is that MAF error from? i have stock meter with screen. i am not getting any knock retard, so that is nice. Here is the print-out:
Timing ,Knock Retard,LTerm B1,LTerm B2,O2 Sensor - B1S1,O2 Sensor - B2S1,Throttle Pos Sen,RPM's,Coolant Temp
19.0,0.0, 0.0, 0.0,0.935,0.890,100.0, 4046,194
17.5,0.0, 0.0, 0.0,0.940,0.890,100.0, 4352,194
17.5,0.0, 0.0, 0.0,0.930,0.880,100.0, 4806,194
17.0,0.0, 0.0, 0.0,0.925,0.880,100.0, 5358,194
18.5,0.0, 0.0, 0.0,0.930,0.880,100.0, 5838,194
17.5,0.0, 0.0, 0.0,0.925,0.880,100.0, 6246,194
18.0,0.0, 0.0, 0.0,0.945,0.880, 0.0, 5922,194
37.5,0.0,-4.7,-7.8,0.830,0.555,100.0, 4986,194
16.5,0.0, 0.0, 0.0,0.935,0.885,100.0, 5132,194
18.5,0.0, 0.0, 0.0,0.935,0.880,100.0, 5387,194
18.5,0.0, 0.0, 0.0,0.935,0.870,100.0, 5632,194
18.5,0.0, 0.0, 0.0,0.935,0.880,100.0, 5866,194
18.0,0.0, 0.0, 0.0,0.935,0.880,100.0, 6071,194
17.0,0.0, 0.0, 0.0,0.940,0.875,100.0, 6236,194
17.0,0.0, 0.0, 0.0,0.935,0.875,100.0, 6453,194
37.5,0.0, 0.0, 0.0,0.650,0.545,28.2, 5296,194
17.0,0.0, 0.0, 0.0,0.950,0.890,100.0, 5068,194
18.0,0.0, 0.0, 0.0,0.945,0.895,100.0, 5231,194
18.5,0.0, 0.0, 0.0,0.945,0.890,100.0, 5368,194
18.5,0.0, 0.0, 0.0,0.950,0.895,100.0, 5500,194
18.5,0.0, 0.0, 0.0,0.950,0.905,100.0, 5641,194
18.5,0.0, 0.0, 0.0,0.950,0.910,100.0, 5754,194
18.0,0.0, 0.0, 0.0,0.955,0.915,100.0, 5868,194
18.0,0.0, 0.0, 0.0,0.950,0.915,100.0, 5976,194
17.5,0.0, 0.0, 0.0,0.940,0.925,100.0, 6094,194
i just had cam, headers, t-body installed and wanted to atap before i go to ls1edit. my reverse recently got locked out, and i hope it is just a faulty solenoid.
i got some error codes:
1) PO102 mass or volume are flow circut low imput
2) po405 exhaust gas recirulation sensor A circuit low (obvious since i removed my EGR with the Z06 intake)
3) P0801 Reverse Inhibit Control Circuit Malfunction
4) P0803 1-4 Upshift (Skip Shift) Solenoid Control Circuit Malfunction
do you think the MAF error is causing the low timing? 18.5 degrees maximum timing and what is that MAF error from? i have stock meter with screen. i am not getting any knock retard, so that is nice. Here is the print-out:
Timing ,Knock Retard,LTerm B1,LTerm B2,O2 Sensor - B1S1,O2 Sensor - B2S1,Throttle Pos Sen,RPM's,Coolant Temp
19.0,0.0, 0.0, 0.0,0.935,0.890,100.0, 4046,194
17.5,0.0, 0.0, 0.0,0.940,0.890,100.0, 4352,194
17.5,0.0, 0.0, 0.0,0.930,0.880,100.0, 4806,194
17.0,0.0, 0.0, 0.0,0.925,0.880,100.0, 5358,194
18.5,0.0, 0.0, 0.0,0.930,0.880,100.0, 5838,194
17.5,0.0, 0.0, 0.0,0.925,0.880,100.0, 6246,194
18.0,0.0, 0.0, 0.0,0.945,0.880, 0.0, 5922,194
37.5,0.0,-4.7,-7.8,0.830,0.555,100.0, 4986,194
16.5,0.0, 0.0, 0.0,0.935,0.885,100.0, 5132,194
18.5,0.0, 0.0, 0.0,0.935,0.880,100.0, 5387,194
18.5,0.0, 0.0, 0.0,0.935,0.870,100.0, 5632,194
18.5,0.0, 0.0, 0.0,0.935,0.880,100.0, 5866,194
18.0,0.0, 0.0, 0.0,0.935,0.880,100.0, 6071,194
17.0,0.0, 0.0, 0.0,0.940,0.875,100.0, 6236,194
17.0,0.0, 0.0, 0.0,0.935,0.875,100.0, 6453,194
37.5,0.0, 0.0, 0.0,0.650,0.545,28.2, 5296,194
17.0,0.0, 0.0, 0.0,0.950,0.890,100.0, 5068,194
18.0,0.0, 0.0, 0.0,0.945,0.895,100.0, 5231,194
18.5,0.0, 0.0, 0.0,0.945,0.890,100.0, 5368,194
18.5,0.0, 0.0, 0.0,0.950,0.895,100.0, 5500,194
18.5,0.0, 0.0, 0.0,0.950,0.905,100.0, 5641,194
18.5,0.0, 0.0, 0.0,0.950,0.910,100.0, 5754,194
18.0,0.0, 0.0, 0.0,0.955,0.915,100.0, 5868,194
18.0,0.0, 0.0, 0.0,0.950,0.915,100.0, 5976,194
17.5,0.0, 0.0, 0.0,0.940,0.925,100.0, 6094,194
Thread Starter
Joined: Nov 2001
Posts: 1,794
Likes: 1
From: Slate Hill, NY
Re: atap readings....low timing and MAF error??? phantom, it idles pretty good i guess..i just had the cam installed so i expect it to be pretty lumpy. it is. is it too lumpy? i don't know. i have nothing to compare it to since my last cam was my stock cam and it idles like a toyota <img src="gr_stretch.gif" border="0">
you said you have the same code. ..but i listed four codes...which one do you have? if you have the low input MAF code, is your timing as low as mine as well? i wonder if it is related. i'll try to replace the MAF with another one to see if that fixes the code. only problem is i probably can't get an atap until next weekend <img src="gr_sad.gif" border="0">
you said you have the same code. ..but i listed four codes...which one do you have? if you have the low input MAF code, is your timing as low as mine as well? i wonder if it is related. i'll try to replace the MAF with another one to see if that fixes the code. only problem is i probably can't get an atap until next weekend <img src="gr_sad.gif" border="0">
Staging Lane
Joined: Nov 2001
Posts: 87
Likes: 0
From: MI
Re: atap readings....low timing and MAF error??? 
