Need some help!
12-30-2009, 08:00 PM
#1
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Need some help! I have a 2000 WS6 with an LQ4 swap with Katech stage 2 heads, fast90/90 and a patrick G custom cam. My problem is that the car just started recently Idling high like 1600-1700 rpm . It would do this a little when the car 1st started and would idle down after it warmed up a little bit. Now it seems to idle this way almost always. Where should I start?
12-31-2009, 07:33 AM
#3
Most likely a vacuum leak. Check where the PCV hose goes into the intake (under the TB) or where the brake booster vacuum line goes into the back of the intake.
Another potential problem would be if your throttle position sensor is not reading 0% when your throttle is closed. This could knock you from the base spark table running 22 degrees of timing to the main spark table running 37 degrees of timing.
Another potential problem would be if your throttle position sensor is not reading 0% when your throttle is closed. This could knock you from the base spark table running 22 degrees of timing to the main spark table running 37 degrees of timing.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
01-02-2010, 12:35 AM
#6
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Most likely a vacuum leak. Check where the PCV hose goes into the intake (under the TB) or where the brake booster vacuum line goes into the back of the intake.
Another potential problem would be if your throttle position sensor is not reading 0% when your throttle is closed. This could knock you from the base spark table running 22 degrees of timing to the main spark table running 37 degrees of timing.
Another potential problem would be if your throttle position sensor is not reading 0% when your throttle is closed. This could knock you from the base spark table running 22 degrees of timing to the main spark table running 37 degrees of timing.
01-02-2010, 12:38 AM
#7
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Most likely a vacuum leak. Check where the PCV hose goes into the intake (under the TB) or where the brake booster vacuum line goes into the back of the intake.
Another potential problem would be if your throttle position sensor is not reading 0% when your throttle is closed. This could knock you from the base spark table running 22 degrees of timing to the main spark table running 37 degrees of timing.
Another potential problem would be if your throttle position sensor is not reading 0% when your throttle is closed. This could knock you from the base spark table running 22 degrees of timing to the main spark table running 37 degrees of timing.
