ROUGH tuning logs: Car wont' drive, so I'm working to get it drivable

[SSbaby]

I notice a few things...

I notice the tune is permanently in Open Loop as Closed Loop Temp Enable = 122*C (i.e. it will never enter Closed Loop).

Your VE table isn't very smooth for a cammed car. Cammed cars are very sensitive to variances (swings) in VE values. As a comparison, here's a screenshot of my VE table (cam is 224/224 110 .568")... (Note: I'm not a huge advocate of AutoVE). My engine behaves much like a stocky - idles nice and pulls smoothly, even from 800 rpm in 2nd.



I agree with the previous post that your idle VEs appear to be too rich. This would cause an erratic idle and stalling issues.

Maybe also reduce your swings in table {B3605} "Commanded Fuel When in Open Loop (Normal) for starters (i.e set EQ Ratio closer to 1.0 for temps greater than 10*C).

I also note your spark tables (hi-lo and base) are quite low for a cammed car.

Just my 2c.

[Kevin Doe]

Please refer to this thread. I think I may have identified the issue. Well not me, but someone else has pointed it out to me. Read the thread and tell me what you think as well.

http://forum.efilive.com/showthread.php?t=6417

[joecar]

That's it: when the PCM sees a MAF DTC it goes into SD.