Question about 1998 Toyota Corolla Sedan
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Posted on Jan 02, 2017
put a jumper wire between the bottom two pins in the plug for the throttle position sensor, if it idles down you need to replace the idle throttle position sensor
Posted on Apr 09, 2009
You might want to check the MAF sensor(Mass Air Flow) and clean it with MAF/MAP cleaner. I am also kind of puzzled with this problem as I have a 2004 Corolla also, I only had power loss when my MAF went bad.
Posted on Jul 20, 2009
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Feb 27, 2014 | 1998 Chevrolet Malibu
Jan 12, 2014 | 1998 Toyota Corolla
Dec 21, 2013 | Cars & Trucks
Engine stalls cold or RPM
fluctuates at idle up and down or dies near idle.
This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve but always run a OBD2 fault code as well as the cleaning procedure. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control. If the above cleaning doesn't cure your issues you need to have the computer controlled automatic idle speed control system diagnosed and repaired by a dealer or electronic engine control repair shop.
Nov 06, 2012 | 1998 Toyota Corolla
Sep 14, 2011 | 1998 Toyota Corolla
Sep 08, 2011 | Lexus ES 300 Cars & Trucks
Too fast an idle speed. If an engine without
computerized idle speed control is idling too fast and refuses to
come down to a normal idle speed despite your best efforts to back off the
carburetor idle speed screw or air bypass adjustment screw (fuel injection),
air is getting past the throttle somewhere. Common leak paths include the
carburetor and throttle body gaskets, carburetor insulator spacers, intake
manifold gaskets, and of course, any of the engine's vacuum fittings, hoses and
accessories. It is even possible that leaky O-rings around the fuel injectors
are allowing air to leak past the seals. Another overlooked item can be a worn
throttle shaft and a defective idle speed speed control motor/valve stuck in
the extended (high idle speed) position/throttle position sensor. Also the
throttle plate could be binding in its bore and kinked accelerator cable,
coolant temperature sensor might not be operating properly misleading the computer
that the engine is still cold and computer throwing fuel at it raising the idle
Getting this possibilities checked will help.Thanks.Helpmech.
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Dec 14, 2010 | 1998 Toyota Corolla
Oct 01, 2010 | 1998 Toyota Corolla
Jun 07, 2009 | 1998 Toyota Corolla
Sep 03, 2014 | 1998 Toyota Corolla Sedan
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