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#1
09-30-2006, 11:01 AM
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Full throttle miss
Passing a truck way out toward Red Rock Canyon. I hit full throttle and it was like the fuel was cutting off and on. Very bad.... I had to let off cause it sounded like it was trying to yank the tranny out with a crowbar.
It's not throwing any codes, and idles and drives normally. It's just a full throttle thing. (Which is rare for my middle aged world anyway.) I tried it a few more times, and it's consistant... It doesn't like full throttle. Is my MAF about to give out? Is it that I don't drive it hard enough? In other words, is there truth to that "gotta blow da gunk out of it".?
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Robert Is Bush in jail yet? (Looks frantically at watch, then back up) How about now? Now? Come onnnnnn...... Someone freeze me until January, this wait is killing me. Update: 09 January, and still not in jail! Wassup?? 1992 Teal LS-L - 160k (Now new and improved with perfect paint!) 
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#2
09-30-2006, 11:35 AM
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When was the last time you replaced your fuel filter? That might be it as well.
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. Earl .... ... .... ><SVX(*> Subaru Ambassador [COLOR=”silver”]1992 Tri Color L[/COLOR] ~45K (06/91) #2430 1992 Dark Teal LS-L ~184K (05/91) #0739 1992 Claret LS-L ~196K (05/91) #0831 1992 Pearl LS-L ~103K (06/91) #1680 1992 Pearl LS-L ~151K (06/91) #2229 1992 Dark Teal LS ~150K (07/91) #3098 (parts car) 1992 White LS-L ~139K (08/92) #6913 1993 25th AE ~98K (02/93) #164 1993 25th AE ~58K (02/93) #176 1993 25th AE ~107K (02/93) #215 1993 25th AE ~162K (02/93) #223 1994 Laguna Blue Pearl LSi ~124K (1/94) #2408 1994 Laguna Blue Pearl LSi ~144K (10/93) #1484 1994 Laguna Blue Pearl LSi ~68K (10/93) #1525 1994 Barcelona Red LSi ~46K (02/94) #2624 1994 Pearl LSi ~41K (12/93) #1961 1995 Bordeaux Pearl LSi ~70K (02/95) #855 1996 Polo Green LSi ~95K (03/96) #872 1997 Bordeaux Pearl LSi ~55K (08/96) #097 2003 Brilliant Red LS1 Convertible ~29K (04/03) #8951 1999 Magnetic Red LS1 Coupe ~33K (04/99) #6420 My Email | Old Locker | New Locker | Picture of 15 of the 19
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#3
09-30-2006, 12:15 PM
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Quote:
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-Mike ECUTune2v7 - 4.11 5 Speed - Sprung 6 Puck Clutch - D&S Rotors - SS Brake & Clutch Lines - HKS Panel Filter - HeaderBack Exhaust -80GB Hard Drive - GroupN Engine Mounts -
 - some other "tricks"[SIGPIC][/SIGPIC] In progess: track down mystery noise <-identified, paint the new dash, get better pic Spring plans: Replace Trans - Integrate ECU with the carputer - Suspension - Go back to STI Filter - Paint? Maybe not  - Next Oil change: Purolator L30165Member #995 | My Locker | My New LockerCatch you next at: ? Auto-X ?
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#4
09-30-2006, 10:40 PM
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I can't speak for a gas engine but for my diesel semi, when the fuel filter clogs up from cold weather or leaning the semi and sucking up the junk on the bottom of the tank the engine will just sputter at higher RPM's and give no power. The more it clogs the lower the RPM drops. I don't know if that's the problem but that's what I was thinking before I read the other reply's. Good Luck and keep us posted.
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#5
10-01-2006, 05:51 PM
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pssssst..... all vehicles always suck from the bottom of the tank - always.
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ASE Certified Master Automotive Technician w/L1. ASE Certified Master Medium/Heavy Truck Technician. Certified EVT (Emergency Vehicle Technician)
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#6
10-01-2006, 08:15 PM
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when's the last time you changed the spark plugs? WOT means max load on the plugs which can induce a high rpm miss...
-Bill
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Retired NASA Rocket Scientist Most famous NASA "Child" - OSIRIS-REx delivered samples from asteroid BENNU to Earth in Sept. 2023 Center Network Member #989 '92 Fully caged, 5 speed, waiting for its fully built EG33 '92 "Test Mule", 4:44 Auto, JDM 4:44 Rear Diff with Mech LSD, Tuned headers, Full one-off suspension '92(?) Laguna, 6 spd and other stuff (still at OT's place) My Locker
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#7
10-02-2006, 08:24 AM
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Normally your right the tanks suck from the bottom but on my semi and alot of others out there the tanks are rotated within the straps so now the outlet is about 1 to 3 inches from the bottom. The reason tanks are rotated is for one of two reasons. The crossover line has been replaced with a shorter line and you have to rotate the tanks to make it fit or the body of the sleeper berth interferes with fueling the tanks (aftermarket chrome light assemblies that attach to the bottom of the sleeper berth are the main reason) and you have to rotate the tanks to get the fuel nozzel into the tanks. Then when your really leaned over (to the left in my case) the junk on the bottom of the opposite tank spills into the feed tank. Then when you are upright again, you suck the junk up untill it falls below the outlet. Otherwise your completely correct and I shouldn't have even mentioned that in my other post because it had nothing to do with why his filter would clog. Sorry for trying to cross diagnose diesel and gas engine problems, and good luck.
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