Need a little help with auto tap

[sick_vette]

I just used my a.t for the first time to check a few codes. Now I want to check for misfires. Can anyone walk me through the steps. Also if there are any other things I might want to check for. Like what does your standard set up consist of?? Any help would be great.

[rwj383]

I havent used Atap in a while so I may get the name of the parameters wrong, but, for a misfire test you will want to make a custom parameter list consisting of a parameter called (or similar to) Current Misfire and Historic Misfire for each of the cylinders, TPS, RPM, MAP, HO2B1S1, HO2B2S1, Total Misfire, KR, Spark advance #1. Then go log some miles. A true misfiring cylinder will be quite apparent with a ton of misfires (>20 Current, >100 Historic). You can see where the majority of the misfire takes place with regard to load, rpm, total timing and TPS

For normal datalogging I have a couple different lists but my long list is:
HO2B1S1
HO2B2S1
LTFT B1
LTFT B2
STFT B1
STFT B2
TPS
MAP
MAF g/sec
RPM
MPH
ECT
IAT
KR
Misfire
IPW B1
IPW B2

Having too many parameters on your list will kill the rate at which the parameters will be logged (how many datapoints per second). Try to keep your lists short and sweet.

robert
http://www.gen3motorsports.com

[Jack Behrle]