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#1 (permalink) |
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Contributing Member
Join Date: May 2003
Location: S florida
Posts: 186
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Interesting problem
all
I have a 02 v6 s.c. when I am between 1800 and 3k light load it feels like the engine is cutting out for a second or two. I looked at the plugs and appear to be fine slightly black inside but the electrode is in good shape. the gap was at .040 to my supprise I regapped them to .031 -.032. also I cleaned the mass airflow sensor,air filter and throttle body. I am assuming it is a coil so I got a new one and swapped it out with each one but still it is dying. I check the resistance of all of the coils hot and cold primary winding and secondary all are with in .5 ohms... I am not getting any codes. Also I drained the fuel and put fresh 93 + octaine boost in the tank. any Ideas?
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TRD Supercharger,TRD 7th injector,URD AIC ,Headers,2.5 Magnaflow exhaust,Airfilter,air box mod,flexalite 210 fans,optima yellow top,Warbro 190 ,TRD t stat,ramsey 8000 winch and rear locker mod |
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#2 (permalink) |
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Registered User
Join Date: Sep 2007
Location: Austin Texas
Posts: 47
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You seem convinced it's electrical.
Did you change the wires? Also.......Fuel filter. Ya, I know but they do not last forever.
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KdF In Memory of my Only Son Chris 99 Taco Prerunner Full OME Suspension Replacement Poly Bushings (all) replacement Greasable shackles |
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#3 (permalink) |
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Contributing Member
Join Date: May 2003
Location: S florida
Posts: 186
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the plug wires are 6 months old. NGK wires. fuel filter was done in Jan.
the electrical is a starting point since it is all controled by a computer.
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TRD Supercharger,TRD 7th injector,URD AIC ,Headers,2.5 Magnaflow exhaust,Airfilter,air box mod,flexalite 210 fans,optima yellow top,Warbro 190 ,TRD t stat,ramsey 8000 winch and rear locker mod |
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#4 (permalink) |
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Registered User
Join Date: Sep 2007
Location: Austin Texas
Posts: 47
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My Dad's Ford years ago had the same symptoms and it turned out to be a bad plug wire. They can come out of the box bad.
Just sayin.........
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KdF In Memory of my Only Son Chris 99 Taco Prerunner Full OME Suspension Replacement Poly Bushings (all) replacement Greasable shackles |
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#5 (permalink) |
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Registered User
Join Date: Jul 2008
Location: Wilmington, Il
Posts: 42
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How many miles on those plugs? They can look great but still miss under lite loads. Ford 4.6L are notorious for that. The plugs will look good and be in gap, but have an intermittant miss.
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97 4runner SR5 91 Corolla DX 92 Camaro rs 87 Shelby Daytona 85 C10 slammed |
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#6 (permalink) |
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Contributing Member
Join Date: May 2003
Location: S florida
Posts: 186
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I think I found it..
a bad TPS I ohm out the orig and there is a spot that the resistance goes crazyfrom 400 Ohms to 1.2 then back to 420 ohms . I put my spare in and ran it so far no dying and my idle is back to 750 rpm's... the plugs are less then a year and the wires 6 months or so. ![]()
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TRD Supercharger,TRD 7th injector,URD AIC ,Headers,2.5 Magnaflow exhaust,Airfilter,air box mod,flexalite 210 fans,optima yellow top,Warbro 190 ,TRD t stat,ramsey 8000 winch and rear locker mod |
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#7 (permalink) |
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Registered User
Join Date: Jul 2008
Location: Wilmington, Il
Posts: 42
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That would do it.
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97 4runner SR5 91 Corolla DX 92 Camaro rs 87 Shelby Daytona 85 C10 slammed |
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#8 (permalink) |
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Registered User
Join Date: Feb 2007
Location: Santa Monica, Ca
Posts: 171
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welcome to the world of bad tps sensors for the 02-04 tacomas, especially for those with forced induction. You will go thru them about every year or so. Last i checked, you couldnt buy them individually, you had to buy the whole darn throttle body, at least for my old 03 dbl cab i had. Good luck.
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2000 4Runner v6 sr5 4x4 5spd: Turbo'ed 99 4Runner v6 Sr5 4x4 5spd: Saw's / OME combo TrueTrac rear 98 4Runner V6 Sr5 4x4 5spd E-locker: Saws / OME combo... EEZI AWN Roof Tent 1.4m 97 4Runner V6 Sr5 4x4 Auto: Saws / OME combo TrueTrac rear 2003 Landcruiser 285 BFG At's and outback roofrack My Baja Trailer Build: http://forum.ih8mud.com/showthread.php?t=179520 http://community.webshots.com/user/bajaroadtrain |
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#9 (permalink) | |
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Registered User
Join Date: Apr 2008
Posts: 129
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Quote:
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'99 4WD 3.4L SR5 AT |
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#10 (permalink) |
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Registered User
Join Date: Feb 2007
Location: Santa Monica, Ca
Posts: 171
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no, actually the TPS starts to go bad before a code is ever thrown quite often. So the only real way to check is get a ohm reader and check it just like paxam did.
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2000 4Runner v6 sr5 4x4 5spd: Turbo'ed 99 4Runner v6 Sr5 4x4 5spd: Saw's / OME combo TrueTrac rear 98 4Runner V6 Sr5 4x4 5spd E-locker: Saws / OME combo... EEZI AWN Roof Tent 1.4m 97 4Runner V6 Sr5 4x4 Auto: Saws / OME combo TrueTrac rear 2003 Landcruiser 285 BFG At's and outback roofrack My Baja Trailer Build: http://forum.ih8mud.com/showthread.php?t=179520 http://community.webshots.com/user/bajaroadtrain |
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#11 (permalink) | |
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Registered User
Join Date: Apr 2008
Posts: 129
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Quote:
An ODBII reader will show values right on the screen that the ECU sees coming off the TPS. All you do is hook it up, slowly press the gas pedal and look at the values the TPS is sending back. This test actually takes about 10 seconds to perform, if not counting the time to hook up the ODBII reader.
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'99 4WD 3.4L SR5 AT |
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#12 (permalink) | |
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Registered User
Join Date: Feb 2007
Location: Santa Monica, Ca
Posts: 171
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Quote:
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2000 4Runner v6 sr5 4x4 5spd: Turbo'ed 99 4Runner v6 Sr5 4x4 5spd: Saw's / OME combo TrueTrac rear 98 4Runner V6 Sr5 4x4 5spd E-locker: Saws / OME combo... EEZI AWN Roof Tent 1.4m 97 4Runner V6 Sr5 4x4 Auto: Saws / OME combo TrueTrac rear 2003 Landcruiser 285 BFG At's and outback roofrack My Baja Trailer Build: http://forum.ih8mud.com/showthread.php?t=179520 http://community.webshots.com/user/bajaroadtrain |
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#13 (permalink) |
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Registered User
Join Date: Apr 2008
Posts: 129
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yeah, you could fix a Model T with a hammer. A carburetored car with a wrench set. But for the last 15 years the first tool out of the toolbox should have been an ODBII reader
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'99 4WD 3.4L SR5 AT |
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#14 (permalink) | |
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Registered User
Join Date: May 2007
Location: Denver metro area-CO
Posts: 575
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please to recommend an affordable one?
Quote:
this is good info from all of you and I learned a lot. Is it necessary to spend around $100 for one? I welcome a brand and model number and value the opinions you guys have about these matters.
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99 4Runner SR5 4wd 3.4/5 spd Factory Rear Locker/Rear Diff Breather Extension LT265/75/16 Nitto Terra Gs- AR767s Old Man Emu springs- 881 fronts/891 rears Old Man Emu shocks- N91s fronts/ N86 rears All Pro Off Road sliders/ARB "Taco" bumper Redline Tuning hood struts -prop rod now useless! TrueFlow Air Filter fed by airbox deckplate mod Rear wing custom painted in body color (white056) |
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#15 (permalink) |
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Registered User
Join Date: Apr 2008
Posts: 129
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Plenty of companies make ODBII readers, though I prefer Auterra with a handheld Palm. It will be a bit over $100, but doesn't mean you can't split that and share it with other. The economy is going down the
so it's a good habit to get into anyway ![]()
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'99 4WD 3.4L SR5 AT |
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#16 (permalink) |
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Registered User
Join Date: May 2007
Location: Denver metro area-CO
Posts: 575
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thank you
asked and answered I like these simple threads I appreciate the recommendation
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99 4Runner SR5 4wd 3.4/5 spd Factory Rear Locker/Rear Diff Breather Extension LT265/75/16 Nitto Terra Gs- AR767s Old Man Emu springs- 881 fronts/891 rears Old Man Emu shocks- N91s fronts/ N86 rears All Pro Off Road sliders/ARB "Taco" bumper Redline Tuning hood struts -prop rod now useless! TrueFlow Air Filter fed by airbox deckplate mod Rear wing custom painted in body color (white056) |
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