I'm using a modified ARAP. I tried the tool for the first time. I plugged in that I was actually scanning a '89 Vette. (Mine's an 87 Vette) I find that I'm getting about 48 parameters of data. Two troubling issues:
1) I'm reading MAF gm/s in excess 10,000 in some cases. (I understand the ECM can only read up to 255 gm/s)

2) I'm not getting parameters relating to knock count or spark retard. I'm only getting spark advance.

My local tuner suggested to me originally that I should have him completely negate the knock sensor to which I disagreed. Is it possible he did it anyway and that's why I'm seeing what I'm seeing.

Thanks in advance.

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Neptune, NJ
White '87 Vette - 383 Superram ported and matched to TPIS big mouth intake, Eagle cast crank, 6"eagle forged rods, srp/je forged pistons, LPE 219 cam, ported heads(2"x1.56" ferrea valves), Comp cams pro-magnum 1.6 rr's, double springs, titanium retainers,Hypertech power coil and cap, 4 bolt block, TPIS headers, auto(trans kit,shift kit),Pro Torque 2600 stall converter, k&N filter, 3.07 rear diff., Silver ZR-1 wheels 17x9 and 17X11

 

 

Thanks Grumpy. Actually I've been lurking here for awhile trying to learn this stuff. Buying the scantool was the first step in doing my own proms. As far as the MAF readings, I called their tech support and they were going to check to make sure there isn't a bug. I assume enough people on this board use this software, so I wonder if anyone else has complained of this?

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Neptune, NJ
White '87 Vette - 383 Superram ported and matched to TPIS big mouth intake, Eagle cast crank, 6"eagle forged rods, srp/je forged pistons, LPE 219 cam, ported heads(2"x1.56" ferrea valves), Comp cams pro-magnum 1.6 rr's, double springs, titanium retainers,Hypertech power coil and cap, 4 bolt block, TPIS headers, auto(trans kit,shift kit),Pro Torque 2600 stall converter, k&N filter, 3.07 rear diff., Silver ZR-1 wheels 17x9 and 17X11

 

I also use the scan tool from Ease, but have not seen this problem. Sounds like something particular to your year 'Vette.

Try working with Ease on your problem, they are good to work with and helped fix some bugs that I had. I still get false DTC's, when I first connect up, depending on the interface that it finds. So, no program is perfect!!

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Best ET 14.413 @95.57 without
pulling valve covers or manifolds.
Also with stock 2.77 rear end!!!

 

It looks like a bug. According to an e-mail I just recieved from them. I must say they are great to work with.

I have found that they are very eager to work with you when their are problems.