so maybe its lean because i have the COT turned off? does the COT turn on at start up?
so maybe its lean because i have the COT turned off? does the COT turn on at start up?
98' White TA A4 TSP 231/237 PP Stage II 59cc heads
401rwhp (unlocked) 1.594 60'-11.60 e.t.-116.98 mph
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98' Sport Gold Metallic TA M6 - 13.39 e.t. Bone Stock
My Trans Ams
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2006 Chevy Monte Carlo SS 5.3L LS4 (wifes car) stock (for now)
Originally Posted by WicketMike
COT is to protect the CATs when you are running too lean. COT adds gas when you are WOT and start to lean out.
E
2014 Corvette Convertible, Torch Red, A6, Z51, 3LT, NPP Exhaust
I can't see how a cold engine would hardly run that lean (18+ AFR).Originally Posted by jfpilla
Could it be that the WB is giving a lean reading because of the air injection pump is causing the false reading for the first few minutes until it shuts off.
I removed mine and I don't have a lean start.
Just a thought, Curt
99C5, mn6, Vortec T trim, Snow meth injection, AFR 205s, ARP studs,Comp 224*112*+2*.580", YellaTerra RRs, PRC Ti's w/dbls, Supermaxx LTs, No Cats, Corsa Indys, LS6Intk, Hurst, Fikse Aro18"s. Pilot Sports 315/30,265/35, 04ZO6 Shocks Hotchkis bars, EBC YellowStuff pads, SS hoses, LM-1, EFILive, 2002 OS. RPS dual disc Clutch, DTE Strut Brace & output shaft.
Originally Posted by curtbriggsThat was my post from earlier in the thread.Originally Posted by Black02SS
It appears there are at least 5 ways to disable the pump.Originally Posted by eboggs_jkvl
If you're concerned turn it off.
2003 red vert
Mods:
LS7 crate engine, wet sump, 24xx reluctor
LPE 100mm MAF
Vararam, cold air intake and bridge
RPM Level 6/4L60e trans
3.42 gears
Yank SS3600
1-7/8" AR headers
Z06 exhaust
470rwhp 437rwtq
1/8th mi-1.526-60'-6.862-1/8th-@100.74mph
I reached that conclusion in post #96, after reading HPcubeds'.Originally Posted by curtbriggs
Last edited by jfpilla; January 29th, 2006 at 01:25 PM.
2003 red vert
Mods:
LS7 crate engine, wet sump, 24xx reluctor
LPE 100mm MAF
Vararam, cold air intake and bridge
RPM Level 6/4L60e trans
3.42 gears
Yank SS3600
1-7/8" AR headers
Z06 exhaust
470rwhp 437rwtq
1/8th mi-1.526-60'-6.862-1/8th-@100.74mph
Thanks for the encouragement Joe. Since I haven't gone through the actual hands on tuning yet I can't put myself in the same league as the rest of you guys. I'm just trying to put stuff I've read into the context of these discussions and see if I've understood what I've read. I enjoy these discussions and the different ways that people attack the problem. Many heads are better than just one.Originally Posted by jfpilla
I'm impressed by the time and effort you're putting in to learn.Originally Posted by VetPet
2003 red vert
Mods:
LS7 crate engine, wet sump, 24xx reluctor
LPE 100mm MAF
Vararam, cold air intake and bridge
RPM Level 6/4L60e trans
3.42 gears
Yank SS3600
1-7/8" AR headers
Z06 exhaust
470rwhp 437rwtq
1/8th mi-1.526-60'-6.862-1/8th-@100.74mph
Joe, I read your post #50, replied and went to bed, guess I should have stuck around.Originally Posted by jfpilla
99C5, mn6, Vortec T trim, Snow meth injection, AFR 205s, ARP studs,Comp 224*112*+2*.580", YellaTerra RRs, PRC Ti's w/dbls, Supermaxx LTs, No Cats, Corsa Indys, LS6Intk, Hurst, Fikse Aro18"s. Pilot Sports 315/30,265/35, 04ZO6 Shocks Hotchkis bars, EBC YellowStuff pads, SS hoses, LM-1, EFILive, 2002 OS. RPS dual disc Clutch, DTE Strut Brace & output shaft.
Nick Williams told me weeks ago that it was probably the AIR Pump. I should have tried it back then.Originally Posted by curtbriggs
When HP Cubed posted, it suggested I should try it. It's easy enough.
2003 red vert
Mods:
LS7 crate engine, wet sump, 24xx reluctor
LPE 100mm MAF
Vararam, cold air intake and bridge
RPM Level 6/4L60e trans
3.42 gears
Yank SS3600
1-7/8" AR headers
Z06 exhaust
470rwhp 437rwtq
1/8th mi-1.526-60'-6.862-1/8th-@100.74mph