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Paul Workman · 07-18-2009

I compared your data to one of my WOT scans with the 90 Z, and with one from my former LT1 Vette.

What jumps out at me is your injector dwell time on one (right) side, and the O2 readings on that same side:

The PW is nuts on the one (right?) side. However, the O2 reading likewise indicates very rich, so the sensor appears to be working. (The pros here that look at this stuff almost daily...please step in.) So, I would be wanting to eliminate a connection problem between the O2 and the ECM first. I'd like to hear what Jeffvette or some other turners think. (I'm subscribed on this one!)

P.

07-18-2009	#3
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,466	Re: Need help understanding scan data I compared your data to one of my WOT scans with the 90 Z, and with one from my former LT1 Vette. What jumps out at me is your injector dwell time on one (right) side, and the O2 readings on that same side: The PW is nuts on the one (right?) side. However, the O2 reading likewise indicates very rich, so the sensor appears to be working. (The pros here that look at this stuff almost daily...please step in.) So, I would be wanting to eliminate a connection problem between the O2 and the ECM first. I'd like to hear what Jeffvette or some other turners think. (I'm subscribed on this one!) P.