PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Timing problem at WOT

Old Jun 22, 2012 | 04:28 PM
  #1  
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Default Timing problem at WOT

Hey guy's I swapped a LQ4 into my 240sx rebuilt the engine with ls2 pistons and rods 5 wire maf stock ls1 intake stock cam etc also running a 2002 Lq9 6.0l Cadillac Escalade ECM. Feels faster at half throttle than full throttle so i plugged my scan tool in and log timing,throttle and rpm would have log knock but my scanner doesn't have that option. only getting 6 degrees of timing at full throttle plus i don't hear any knock.Thanks for the help

spark adv 6
vss 21
tp 100%
Rpm 3875

spark adv 6
vss 44
tp 100%
Rpm 4720

spark adv 25
vss 50
tp 100%
Rpm 3964

spark adv 13
vss 47
tp 100%
Rpm 2031
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Old Jun 22, 2012 | 06:16 PM
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From: on the dyno tuning in MD
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You need to post up the tune and log in order for anyone to help you... could be a number of things...
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Old Jun 26, 2012 | 03:18 PM
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Post the tune I will take a look.
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Old Jun 27, 2012 | 11:49 AM
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Have something similar going on with an 07 stock trailblazer ss 6.0 liter.
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Old Jul 3, 2012 | 06:18 PM
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I only have a scan tool i'm about to buy an hp tuners so i can log some pulls and post them up here. do you think it might be the knock sensors that are bad
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