Trying to figure out what my problems are?

 

Check DTCs, and drive the car fully warmed up over all load and rpm ranges. Check for knock retard, and look at the BLMs while the PCM is in learn mode (obviously won't be in PE). IAC at idle is also good to check. Battery voltage and TPS (check at ignition off for TPS) should be checked as well. Look at the MAP sensor at idle to check for idle vacuum. A stock M6 car should probably pull between 30 and 35kPa at idle.

Just opened datamaster up and the additional things come to mind:
On a modified car, you want to make sure injector DC stays below 100% at high rpms/load. If you're getting a stumble, or whatever your problem is, try to correlate it to what's happening in datamaster. For instance, my car studders on light acceleration. I noticed EGR goes to 100% DC during this, so I turned off EGR in the PCM and bingo, no more studders (I will replace EGR).

 

You might find some ideas on what to look for, and what some of the data means by reviewing my online scanner writeup:

http://members.aol.com/InjuneerZZ/ScanMast.htm

 

Injuneer,

I read through your page and I noticed you question the spark table you have there. I have Tunercat and can get you the factory spark tables for my 95 Z28 if you are interested.

 

I think that is the stock one I got from Brent Franker..... but its only the table up to 4,000rpm.

If you want to send me the full table, I'll replace the one I have in there now.

 

Injuneer,

Sorry I took so long to respond. Today at work I was going through all the threads I've posted in to check for replies and I found this. I should probably enable e-mail notification.

Anyway, as promised, here are my stock 95 Z28 timing tables, formatted in the TunerCat fashion, which I prefer (MAP on the X axis, RPM on the Y axis):

[CODE]RPM MAP
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

400 21 23 23 24 25 26 24 24 20 20 18 14 11 7 5 3
600 24 24 27 30 30 29 27 25 24 21 18 16 13 10 8 6
800 27 31 32 33 33 32 29 26 25 22 19 16 14 11 9 8
1000 32 38 39 36 34 33 31 29 26 23 20 16 14 11 10 10
1200 34 40 39 38 37 35 34 33 29 25 22 18 16 14 12 12
1400 35 40 41 40 38 36 35 34 32 28 25 22 20 17 14 14
1600 35 41 41 41 41 38 37 35 34 31 27 23 20 18 16 16
1800 35 40 43 43 41 39 38 37 36 34 30 26 23 21 19 19
2000 35 40 43 43 41 40 39 38 37 35 31 28 25 24 23 23
2200 35 40 43 43 42 40 40 39 38 37 33 31 28 28 27 27
2400 35 40 43 43 42 41 40 39 39 37 35 34 32 31 30 30
2800 35 40 43 43 42 41 40 39 38 37 36 35 35 35 34 33
3200 35 40 43 43 42 41 41 40 38 37 36 36 35 35 34 33
3600 35 40 43 44 43 42 41 41 39 38 37 37 37 35 35 33
4000 35 41 43 44 43 42 41 41 39 39 38 38 37 35 35 33[/CODE]

 

[CODE]RPM MAP
25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100
4500 35 41 44 44 43 42 41 40 40 40 39 38 37 35 35 33
5000 35 41 44 44 43 42 41 40 39 39 39 38 37 35 35 33
5500 35 40 44 44 43 42 41 40 39 39 39 38 37 35 35 33
6000 35 40 44 44 43 42 41 41 40 40 39 38 37 35 35 33
6500 35 40 44 44 43 42 41 41 41 41 39 38 37 36 36 36
7000 35 40 44 44 43 42 41 41 41 41 41 41 40 38 38 38[/CODE]

Look, I made everything pretty with CODE tags. Do I get bonus points?

 

Thanks..... I'm impressed. Looks like I can just copy it into my html document. You will be given credit

Could you send it to me in an e-mail?