Need advice on what tables to adjust for PCM tuning
02-08-2002, 02:03 PM
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Need advice on what tables to adjust for PCM tuning My current situation is that I am running very lean on the bottom end (just cruising around) and that is causing me to run very rich at WOT.
According to ATAP, the Ltrims are in the range of 15% to 20% while cruising around. At WOT, my O2 sensors are at 960mV and I have 18% fuel being added due to Ltrims reading of 18%. I was able to remedy my situation with the MAFT set at +20% base and -10% WOT. With these settings on the MAFT, the Ltrims were 0 and the O2 sensors came down to 890mV at WOT.
I have on order the LS1Edit PCM programmer. I wish to take care of my tuning issue with LS1Edit.
What specific tables do I work with to deal with my lean condition at cruise and rich at WOT?
What form are these tables in? I mean the axis parameters, such as, rpm, engine load, MAF flow, etc.
Please give me a heads up. Thank you in advance.
Doc
According to ATAP, the Ltrims are in the range of 15% to 20% while cruising around. At WOT, my O2 sensors are at 960mV and I have 18% fuel being added due to Ltrims reading of 18%. I was able to remedy my situation with the MAFT set at +20% base and -10% WOT. With these settings on the MAFT, the Ltrims were 0 and the O2 sensors came down to 890mV at WOT.
I have on order the LS1Edit PCM programmer. I wish to take care of my tuning issue with LS1Edit.
What specific tables do I work with to deal with my lean condition at cruise and rich at WOT?
What form are these tables in? I mean the axis parameters, such as, rpm, engine load, MAF flow, etc.
Please give me a heads up. Thank you in advance.
Doc
