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LS1ow · 10-29-2017, 05:14 PM

Did some more trouble shooting yesterday, here’s what I learned.

1. Fuel pressure does bleed off quick, but it maintains 55-60psi while cranking

Result: crank, no signs of firing

2. Unplugged the o2 sensors, since the only time it really ran was with no 02s

Result: crank, no signs of firing

3. Checked all plug wires, everything looked good

Result: crank, backfire/pop threw intake with some smoke out of the lid.

Tonight I’m going to pull the spark plugs and check em out. Praying it’s not a timing issue. Don’t know how it would be possible since it was lined up perfect, but who knows.

10-29-2017, 05:14 PM	#1281
LS1ow Power Member / trans break does not equal transbrake Join Date: May 2009 Location: The Meadowlands Posts: 4,513 iTrader: (15) Social Networks:	Did some more trouble shooting yesterday, here’s what I learned. 1. Fuel pressure does bleed off quick, but it maintains 55-60psi while cranking Result: crank, no signs of firing 2. Unplugged the o2 sensors, since the only time it really ran was with no 02s Result: crank, no signs of firing 3. Checked all plug wires, everything looked good Result: crank, backfire/pop threw intake with some smoke out of the lid. Tonight I’m going to pull the spark plugs and check em out. Praying it’s not a timing issue. Don’t know how it would be possible since it was lined up perfect, but who knows. __________________ 99 Z28 - SBE LS1/60e Motor - 10.84 @ 128 - 1.47 60' Nitrous - 10.16 @ 132 - 1.40 60"